TY  - JOUR
AU  - Kosanić, Nenad
AU  - Marolt, Jakob
AU  - Zrnić, Nenad
AU  - Lerher, Tone
PY  - 2024
UR  - https://www.tandfonline.com/doi/full/10.1080/00207543.2023.2221750
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7773
AB  - The paper presents an analytical model for travel time evaluation in double-deep, triple-deep, quadruple-deep and fivefold-deep tier-captive shuttle-based storage and retrieval system (SBS/RS). Under the assumption of the deepest location rule for the storage process and the nearest neighbour rule for the retrieval process, the expressions for single-command and dual-command cycle times of the shuttle vehicle and elevator are developed, from which the SBS/RS performance can be estimated. The model based on the probability theory enables the evaluation of all individual times that make up the cycle times and assessment of the average number of totes relocated during a retrieval process. Special attention is devoted to the modelling of the relocation of totes which block access to the requested tote during the retrieval process. The validity of the analytical model is examined via the developed simulation model. The given case study shows that the proposed analytical travel time model results match the results of the simulation model. The presented modelling strategy could be applied to bigger system racking depths following the same modelling logic.
PB  - Taylor and Francis Ltd.
T2  - International Journal of Production Research
T1  - Travel time model for multiple-deep shuttle-based storage and retrieval systems
EP  - 2639
IS  - 7
SP  - 2606
VL  - 62
DO  - 10.1080/00207543.2023.2221750
ER  - 

@article{
author = "Kosanić, Nenad and Marolt, Jakob and Zrnić, Nenad and Lerher, Tone",
year = "2024",
abstract = "The paper presents an analytical model for travel time evaluation in double-deep, triple-deep, quadruple-deep and fivefold-deep tier-captive shuttle-based storage and retrieval system (SBS/RS). Under the assumption of the deepest location rule for the storage process and the nearest neighbour rule for the retrieval process, the expressions for single-command and dual-command cycle times of the shuttle vehicle and elevator are developed, from which the SBS/RS performance can be estimated. The model based on the probability theory enables the evaluation of all individual times that make up the cycle times and assessment of the average number of totes relocated during a retrieval process. Special attention is devoted to the modelling of the relocation of totes which block access to the requested tote during the retrieval process. The validity of the analytical model is examined via the developed simulation model. The given case study shows that the proposed analytical travel time model results match the results of the simulation model. The presented modelling strategy could be applied to bigger system racking depths following the same modelling logic.",
publisher = "Taylor and Francis Ltd.",
journal = "International Journal of Production Research",
title = "Travel time model for multiple-deep shuttle-based storage and retrieval systems",
pages = "2639-2606",
number = "7",
volume = "62",
doi = "10.1080/00207543.2023.2221750"
}

Kosanić, N., Marolt, J., Zrnić, N.,& Lerher, T.. (2024). Travel time model for multiple-deep shuttle-based storage and retrieval systems. in International Journal of Production Research
Taylor and Francis Ltd.., 62(7), 2606-2639.
https://doi.org/10.1080/00207543.2023.2221750

Kosanić N, Marolt J, Zrnić N, Lerher T. Travel time model for multiple-deep shuttle-based storage and retrieval systems. in International Journal of Production Research. 2024;62(7):2606-2639.
doi:10.1080/00207543.2023.2221750 .

Kosanić, Nenad, Marolt, Jakob, Zrnić, Nenad, Lerher, Tone, "Travel time model for multiple-deep shuttle-based storage and retrieval systems" in International Journal of Production Research, 62, no. 7 (2024):2606-2639,
https://doi.org/10.1080/00207543.2023.2221750 . .

TY  - JOUR
AU  - Dragović, Branislav
AU  - Zrnić, Nenad
AU  - Tzannatos, Ernestos
AU  - Kosanić, Nenad
AU  - Dragović, Andro
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5437
AB  - Purpose – The paper undertakes a bibliometric analysis and assessment of journal publications in the field of
container terminal operations research (CTOR), in an attempt to identify high-impact papers (HIPs) published in
Science Citation Index/Social Science Citation Index (SCI/SSCI) journals ofCTORsubject category from1973 to 2020.
Design/methodology/approach –Astructured approach for identifying the HIPs is developed based on the
utilization of bibliometric and network analyses.
Findings – The CTOR papers are assessed in terms of publication outputs, distribution of outputs in SCI/SSCI
journals, authorship, institutions and countries, as well as citation life cycles of papers with the highest total
citations since their publication until the year 2020. The results show that between 1989 and 2015, there were 82
HIPs in the field of CTOR, which have been cited at least 200 times, with more than 50% of these citations
allocated in the second part of paper citation life cycle according to the database of Google Scholar.
Practical implications – The practical implication of the aforementioned reviewing and assessing journal
publications of CTOR is that it offers the ability to reveal the tone of its development through addressing main
characteristics of the relevant HIPs as determined by the highly cited papers in this field of research.
Originality/value – This paper offers a unique analysis and assessment in the field of CTOR by identifying
the relevant HIPs and their associated scientific actors (authors, institutions and countries), thus facilitating the
future research effort in the field of CTOR.
PB  - Emerald Publishing Limited
T2  - Maritime Business Review
T1  - A bibliometric analysis and assessment of container terminal operations research
DO  - 10.1108/MABR-07-2022-0035
ER  - 

@article{
author = "Dragović, Branislav and Zrnić, Nenad and Tzannatos, Ernestos and Kosanić, Nenad and Dragović, Andro",
year = "2023",
abstract = "Purpose – The paper undertakes a bibliometric analysis and assessment of journal publications in the field of
container terminal operations research (CTOR), in an attempt to identify high-impact papers (HIPs) published in
Science Citation Index/Social Science Citation Index (SCI/SSCI) journals ofCTORsubject category from1973 to 2020.
Design/methodology/approach –Astructured approach for identifying the HIPs is developed based on the
utilization of bibliometric and network analyses.
Findings – The CTOR papers are assessed in terms of publication outputs, distribution of outputs in SCI/SSCI
journals, authorship, institutions and countries, as well as citation life cycles of papers with the highest total
citations since their publication until the year 2020. The results show that between 1989 and 2015, there were 82
HIPs in the field of CTOR, which have been cited at least 200 times, with more than 50% of these citations
allocated in the second part of paper citation life cycle according to the database of Google Scholar.
Practical implications – The practical implication of the aforementioned reviewing and assessing journal
publications of CTOR is that it offers the ability to reveal the tone of its development through addressing main
characteristics of the relevant HIPs as determined by the highly cited papers in this field of research.
Originality/value – This paper offers a unique analysis and assessment in the field of CTOR by identifying
the relevant HIPs and their associated scientific actors (authors, institutions and countries), thus facilitating the
future research effort in the field of CTOR.",
publisher = "Emerald Publishing Limited",
journal = "Maritime Business Review",
title = "A bibliometric analysis and assessment of container terminal operations research",
doi = "10.1108/MABR-07-2022-0035"
}

Dragović, B., Zrnić, N., Tzannatos, E., Kosanić, N.,& Dragović, A.. (2023). A bibliometric analysis and assessment of container terminal operations research. in Maritime Business Review
Emerald Publishing Limited..
https://doi.org/10.1108/MABR-07-2022-0035

Dragović B, Zrnić N, Tzannatos E, Kosanić N, Dragović A. A bibliometric analysis and assessment of container terminal operations research. in Maritime Business Review. 2023;.
doi:10.1108/MABR-07-2022-0035 .

Dragović, Branislav, Zrnić, Nenad, Tzannatos, Ernestos, Kosanić, Nenad, Dragović, Andro, "A bibliometric analysis and assessment of container terminal operations research" in Maritime Business Review (2023),
https://doi.org/10.1108/MABR-07-2022-0035 . .

TY  - CONF
AU  - Arsić, Aleksandra
AU  - Flajs, Željko
AU  - Gašić, Vlada
AU  - Zrnić, Nenad
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7288
AB  - A numerical analysis of welded connection between two steel structures is performed with the usage of the finite element approach. A frame stage‐like structure is placed between the main horizontal girders of the structure of the hall. A visual inspection of the frame revealed numerous irregularities of welds which brought demand for redesign and overall check. The emphasis in this paper is comparative calculation of initial and redesigned welded end‐joints, without imposing the optimal technical solution. It is used modern and particular finite element software for calculation of welded joints. The values of stresses in the welded joint as well in plates and members are lower than the permitted values for both models. However, the influence on the main structure is reduced with redesigned technical solution. The level of stresses is lower along with reduction of rotational stiffness of the joint. This can be considered as a relief to the main girders of the hall structure and should be a cost and a goal for supporting any additional structure.
PB  - University of Banja Luka Faculty of Mechanical Engineering
C3  - 16th International Conference on Accomplishments in Mechanical and Industrial Engineering - DEMI 2023
T1  - Finite element calculation of redesigned welded joint at support for frame stage‐like structure
EP  - 516
SP  - 511
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7288
ER  - 

@conference{
author = "Arsić, Aleksandra and Flajs, Željko and Gašić, Vlada and Zrnić, Nenad",
year = "2023",
abstract = "A numerical analysis of welded connection between two steel structures is performed with the usage of the finite element approach. A frame stage‐like structure is placed between the main horizontal girders of the structure of the hall. A visual inspection of the frame revealed numerous irregularities of welds which brought demand for redesign and overall check. The emphasis in this paper is comparative calculation of initial and redesigned welded end‐joints, without imposing the optimal technical solution. It is used modern and particular finite element software for calculation of welded joints. The values of stresses in the welded joint as well in plates and members are lower than the permitted values for both models. However, the influence on the main structure is reduced with redesigned technical solution. The level of stresses is lower along with reduction of rotational stiffness of the joint. This can be considered as a relief to the main girders of the hall structure and should be a cost and a goal for supporting any additional structure.",
publisher = "University of Banja Luka Faculty of Mechanical Engineering",
journal = "16th International Conference on Accomplishments in Mechanical and Industrial Engineering - DEMI 2023",
title = "Finite element calculation of redesigned welded joint at support for frame stage‐like structure",
pages = "516-511",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7288"
}

Arsić, A., Flajs, Ž., Gašić, V.,& Zrnić, N.. (2023). Finite element calculation of redesigned welded joint at support for frame stage‐like structure. in 16th International Conference on Accomplishments in Mechanical and Industrial Engineering - DEMI 2023
University of Banja Luka Faculty of Mechanical Engineering., 511-516.
https://hdl.handle.net/21.15107/rcub_machinery_7288

Arsić A, Flajs Ž, Gašić V, Zrnić N. Finite element calculation of redesigned welded joint at support for frame stage‐like structure. in 16th International Conference on Accomplishments in Mechanical and Industrial Engineering - DEMI 2023. 2023;:511-516.
https://hdl.handle.net/21.15107/rcub_machinery_7288 .

Arsić, Aleksandra, Flajs, Željko, Gašić, Vlada, Zrnić, Nenad, "Finite element calculation of redesigned welded joint at support for frame stage‐like structure" in 16th International Conference on Accomplishments in Mechanical and Industrial Engineering - DEMI 2023 (2023):511-516,
https://hdl.handle.net/21.15107/rcub_machinery_7288 .

TY  - CONF
AU  - Gašić, Vlada
AU  - Arsić, Aleksandra
AU  - Zrnić, Nenad
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7283
AB  - The paper deals with strength of load-carrying fillet welds with application of two different approaches. First one is calculation by classical/scholar approach while second one is devoted to finite element analysis. The classical approach is concerned with national and European engineering practice. The finite element approach includes the application of particular tool which preserves main recommendations from modern postulations in design of joints. The object of interest is welded beam-to-column joint with different structural elements and the stresses are obtained for two models. It is investigated correlation of results of weld stresses from both the approaches. Direct matching of results was neither expected nor found but basic correlation is revealed within the joint behaviour under loadings. Considering finite element approach as prevailing, its advantage is clearly shown throughout inclusion of local effects of plates. However, classical approach is essential for proper understanding of joint behaviour and should be always the first step in structural analysis. The usage of at least two different approaches is one way of improving safety checks in engineering and stands for purpose of validation or verification of design.
PB  - Faculty of Mechanical and Civil Engineering in Kraljevo
C3  - XI International Conference Heavy Machinery - HM 2023
T1  - Strength of Fillet-welded Joint Connections: Comments on Correlation Between Classical and Particular Finite Element Approach
EP  - A.8
SP  - A.1
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7283
ER  - 

@conference{
author = "Gašić, Vlada and Arsić, Aleksandra and Zrnić, Nenad",
year = "2023",
abstract = "The paper deals with strength of load-carrying fillet welds with application of two different approaches. First one is calculation by classical/scholar approach while second one is devoted to finite element analysis. The classical approach is concerned with national and European engineering practice. The finite element approach includes the application of particular tool which preserves main recommendations from modern postulations in design of joints. The object of interest is welded beam-to-column joint with different structural elements and the stresses are obtained for two models. It is investigated correlation of results of weld stresses from both the approaches. Direct matching of results was neither expected nor found but basic correlation is revealed within the joint behaviour under loadings. Considering finite element approach as prevailing, its advantage is clearly shown throughout inclusion of local effects of plates. However, classical approach is essential for proper understanding of joint behaviour and should be always the first step in structural analysis. The usage of at least two different approaches is one way of improving safety checks in engineering and stands for purpose of validation or verification of design.",
publisher = "Faculty of Mechanical and Civil Engineering in Kraljevo",
journal = "XI International Conference Heavy Machinery - HM 2023",
title = "Strength of Fillet-welded Joint Connections: Comments on Correlation Between Classical and Particular Finite Element Approach",
pages = "A.8-A.1",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7283"
}

Gašić, V., Arsić, A.,& Zrnić, N.. (2023). Strength of Fillet-welded Joint Connections: Comments on Correlation Between Classical and Particular Finite Element Approach. in XI International Conference Heavy Machinery - HM 2023
Faculty of Mechanical and Civil Engineering in Kraljevo., A.1-A.8.
https://hdl.handle.net/21.15107/rcub_machinery_7283

Gašić V, Arsić A, Zrnić N. Strength of Fillet-welded Joint Connections: Comments on Correlation Between Classical and Particular Finite Element Approach. in XI International Conference Heavy Machinery - HM 2023. 2023;:A.1-A.8.
https://hdl.handle.net/21.15107/rcub_machinery_7283 .

Gašić, Vlada, Arsić, Aleksandra, Zrnić, Nenad, "Strength of Fillet-welded Joint Connections: Comments on Correlation Between Classical and Particular Finite Element Approach" in XI International Conference Heavy Machinery - HM 2023 (2023):A.1-A.8,
https://hdl.handle.net/21.15107/rcub_machinery_7283 .

TY  - CONF
AU  - Zrnić, Nenad
AU  - Đorđević, Miloš
AU  - Gašić, Vlada
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3831
AB  - The paper discusses the history of belt conveyors over the years until the development of the modern belt conveyor at the end of the 19th century. The roots of conveyor systems and principles of operation go back to the ancient times, with a first trace of primitive belt conveyor found in the beginning of the 17th century. The early belt conveyors can be found in the late 18th century due to the invention of Oliver Evans in USA and in the 19th century, by Lyster in England and Lopatine in Russia. The first modern solution of the heavy-duty belt conveyor was proposed by Thomas Robins in the last decade of the 19th century, with the basic principles of operation which remain unchanged up to now.
PB  - Springer Science and Business Media B.V.
C3  - History of Mechanism and Machine Science
T1  - History of Belt Conveyors Until the End of the 19th Century
EP  - 223
SP  - 210
VL  - 40 HMMS
DO  - 10.1007/978-3-030-98499-1_18
ER  - 

@conference{
author = "Zrnić, Nenad and Đorđević, Miloš and Gašić, Vlada",
year = "2022",
abstract = "The paper discusses the history of belt conveyors over the years until the development of the modern belt conveyor at the end of the 19th century. The roots of conveyor systems and principles of operation go back to the ancient times, with a first trace of primitive belt conveyor found in the beginning of the 17th century. The early belt conveyors can be found in the late 18th century due to the invention of Oliver Evans in USA and in the 19th century, by Lyster in England and Lopatine in Russia. The first modern solution of the heavy-duty belt conveyor was proposed by Thomas Robins in the last decade of the 19th century, with the basic principles of operation which remain unchanged up to now.",
publisher = "Springer Science and Business Media B.V.",
journal = "History of Mechanism and Machine Science",
title = "History of Belt Conveyors Until the End of the 19th Century",
pages = "223-210",
volume = "40 HMMS",
doi = "10.1007/978-3-030-98499-1_18"
}

Zrnić, N., Đorđević, M.,& Gašić, V.. (2022). History of Belt Conveyors Until the End of the 19th Century. in History of Mechanism and Machine Science
Springer Science and Business Media B.V.., 40 HMMS, 210-223.
https://doi.org/10.1007/978-3-030-98499-1_18

Zrnić N, Đorđević M, Gašić V. History of Belt Conveyors Until the End of the 19th Century. in History of Mechanism and Machine Science. 2022;40 HMMS:210-223.
doi:10.1007/978-3-030-98499-1_18 .

Zrnić, Nenad, Đorđević, Miloš, Gašić, Vlada, "History of Belt Conveyors Until the End of the 19th Century" in History of Mechanism and Machine Science, 40 HMMS (2022):210-223,
https://doi.org/10.1007/978-3-030-98499-1_18 . .

TY  - CONF
AU  - Arsić, Aleksandra
AU  - Gašić, Vlada
AU  - Zrnić, Nenad
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4373
AB  - This paper gives survey on up-to-date studies which deal with numerical simulations of bolted end-plate moment connections. The selection is performed with the aim to cover different design concepts which reflect the problem of joint behaviour in general. Main characteristics of joint design and corresponding analysis features are presented in tabular form intended to serve as guidance for appropriate modelling of bolted 
end-plate connections. Consequently, the procedure for conducting numerical simulation in proper mode is proposed by authors. An illustrative example-case study of analysis of a extended stiffened end-plate bolted beam-to-column joint is shown. The design case is modelled with two finite element software packages which have different approaches and levels of complexity. Finally, the analytical calculation of this joint is done according to Eurocode 3 with the aim of validation. The moment-rotation curve, as a basis in this field, is obtained for each model. The results from numerical simulations with both the approaches are in good correlation. Basic characteristics of two mentioned design approaches are also explained as an orientation for engineers and reserchers in this field.
PB  - University of Belgrade, Faculty of Mechanical Engineering
C3  - Proceedings of XXIV International Conference on "Material Handling, Constructions and Logistics" - MHCL 2022
T1  - Survey on Design Procedures in Numerical Simulations of End-plate Moment Connections
EP  - 150
SP  - 143
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4373
ER  - 

@conference{
author = "Arsić, Aleksandra and Gašić, Vlada and Zrnić, Nenad",
year = "2022",
abstract = "This paper gives survey on up-to-date studies which deal with numerical simulations of bolted end-plate moment connections. The selection is performed with the aim to cover different design concepts which reflect the problem of joint behaviour in general. Main characteristics of joint design and corresponding analysis features are presented in tabular form intended to serve as guidance for appropriate modelling of bolted 
end-plate connections. Consequently, the procedure for conducting numerical simulation in proper mode is proposed by authors. An illustrative example-case study of analysis of a extended stiffened end-plate bolted beam-to-column joint is shown. The design case is modelled with two finite element software packages which have different approaches and levels of complexity. Finally, the analytical calculation of this joint is done according to Eurocode 3 with the aim of validation. The moment-rotation curve, as a basis in this field, is obtained for each model. The results from numerical simulations with both the approaches are in good correlation. Basic characteristics of two mentioned design approaches are also explained as an orientation for engineers and reserchers in this field.",
publisher = "University of Belgrade, Faculty of Mechanical Engineering",
journal = "Proceedings of XXIV International Conference on "Material Handling, Constructions and Logistics" - MHCL 2022",
title = "Survey on Design Procedures in Numerical Simulations of End-plate Moment Connections",
pages = "150-143",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4373"
}

Arsić, A., Gašić, V.,& Zrnić, N.. (2022). Survey on Design Procedures in Numerical Simulations of End-plate Moment Connections. in Proceedings of XXIV International Conference on "Material Handling, Constructions and Logistics" - MHCL 2022
University of Belgrade, Faculty of Mechanical Engineering., 143-150.
https://hdl.handle.net/21.15107/rcub_machinery_4373

Arsić A, Gašić V, Zrnić N. Survey on Design Procedures in Numerical Simulations of End-plate Moment Connections. in Proceedings of XXIV International Conference on "Material Handling, Constructions and Logistics" - MHCL 2022. 2022;:143-150.
https://hdl.handle.net/21.15107/rcub_machinery_4373 .

Arsić, Aleksandra, Gašić, Vlada, Zrnić, Nenad, "Survey on Design Procedures in Numerical Simulations of End-plate Moment Connections" in Proceedings of XXIV International Conference on "Material Handling, Constructions and Logistics" - MHCL 2022 (2022):143-150,
https://hdl.handle.net/21.15107/rcub_machinery_4373 .

TY  - CONF
AU  - Meštrović, Romeo
AU  - Dragović, Branislav
AU  - Zrnić, Nenad
AU  - Dragović, Andro
AU  - Perazić, Kenan
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5445
AB  - The paper presents M^X / M / c batch queues in which the group size is
given by the shifted-Poisson and Poisson-like distributions. This queue
model deduced the expressions for the specific cost ratio involving the
state probabilities, the utilization factor, the mean and the variance of the
group size. Proposed model discusses the total queuing system costs of
container at container yard (CY) and specific cost ratio to improve the best
values for container performances at CY. The analytical approach make
the model appropriate to analyze. The special cases can be solved exactly,
which is shown in another paper dealing with the application of this
methodological approach.
PB  - SaTCIP Publisher Ltd
C3  - Proceedings of the Maritime and Port Logistics of the XXIV International Conference MHCL 2022
T1  - Modelling the Container Yard as an Operational System in a Port: A Methodological Approach
EP  - 42
SP  - 39
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5445
ER  - 

@conference{
author = "Meštrović, Romeo and Dragović, Branislav and Zrnić, Nenad and Dragović, Andro and Perazić, Kenan",
year = "2022",
abstract = "The paper presents M^X / M / c batch queues in which the group size is
given by the shifted-Poisson and Poisson-like distributions. This queue
model deduced the expressions for the specific cost ratio involving the
state probabilities, the utilization factor, the mean and the variance of the
group size. Proposed model discusses the total queuing system costs of
container at container yard (CY) and specific cost ratio to improve the best
values for container performances at CY. The analytical approach make
the model appropriate to analyze. The special cases can be solved exactly,
which is shown in another paper dealing with the application of this
methodological approach.",
publisher = "SaTCIP Publisher Ltd",
journal = "Proceedings of the Maritime and Port Logistics of the XXIV International Conference MHCL 2022",
title = "Modelling the Container Yard as an Operational System in a Port: A Methodological Approach",
pages = "42-39",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5445"
}

Meštrović, R., Dragović, B., Zrnić, N., Dragović, A.,& Perazić, K.. (2022). Modelling the Container Yard as an Operational System in a Port: A Methodological Approach. in Proceedings of the Maritime and Port Logistics of the XXIV International Conference MHCL 2022
SaTCIP Publisher Ltd., 39-42.
https://hdl.handle.net/21.15107/rcub_machinery_5445

Meštrović R, Dragović B, Zrnić N, Dragović A, Perazić K. Modelling the Container Yard as an Operational System in a Port: A Methodological Approach. in Proceedings of the Maritime and Port Logistics of the XXIV International Conference MHCL 2022. 2022;:39-42.
https://hdl.handle.net/21.15107/rcub_machinery_5445 .

Meštrović, Romeo, Dragović, Branislav, Zrnić, Nenad, Dragović, Andro, Perazić, Kenan, "Modelling the Container Yard as an Operational System in a Port: A Methodological Approach" in Proceedings of the Maritime and Port Logistics of the XXIV International Conference MHCL 2022 (2022):39-42,
https://hdl.handle.net/21.15107/rcub_machinery_5445 .

TY  - CONF
AU  - Dragović, Branislav
AU  - Meštrović, Romeo
AU  - Zrnić, Nenad
AU  - Dragović, Andro
AU  - Petranović, Mauro
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5446
AB  - The paper presents the two Case Studies of the modelling process at the
Container Yard (CY) as an Operational System based on a particular
batch arrival multi-server M^X / M / c queue described and analysed in
[4], where the batch size ( X ) has the shifted-Poisson and Poisson-like
distributions. Using a more general formula for such queue models, here
it is deduced the expressions for the specific cost ratio involving the state
probabilities, the utilization factor, the mean and the variance of the group
size. Applying this expression, the various results are presented when the
number of yard cranes at container yard in port is 1, 2 or 3.
PB  - SaTCIP Publisher Ltd
C3  - Proceedings of the Maritime and Port Logistics of the XXIV International Conference MHCL 2022
T1  - Modelling the Container Yard as an Operational System in a Port: The Case Studies
EP  - 52
SP  - 49
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5446
ER  - 

@conference{
author = "Dragović, Branislav and Meštrović, Romeo and Zrnić, Nenad and Dragović, Andro and Petranović, Mauro",
year = "2022",
abstract = "The paper presents the two Case Studies of the modelling process at the
Container Yard (CY) as an Operational System based on a particular
batch arrival multi-server M^X / M / c queue described and analysed in
[4], where the batch size ( X ) has the shifted-Poisson and Poisson-like
distributions. Using a more general formula for such queue models, here
it is deduced the expressions for the specific cost ratio involving the state
probabilities, the utilization factor, the mean and the variance of the group
size. Applying this expression, the various results are presented when the
number of yard cranes at container yard in port is 1, 2 or 3.",
publisher = "SaTCIP Publisher Ltd",
journal = "Proceedings of the Maritime and Port Logistics of the XXIV International Conference MHCL 2022",
title = "Modelling the Container Yard as an Operational System in a Port: The Case Studies",
pages = "52-49",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5446"
}

Dragović, B., Meštrović, R., Zrnić, N., Dragović, A.,& Petranović, M.. (2022). Modelling the Container Yard as an Operational System in a Port: The Case Studies. in Proceedings of the Maritime and Port Logistics of the XXIV International Conference MHCL 2022
SaTCIP Publisher Ltd., 49-52.
https://hdl.handle.net/21.15107/rcub_machinery_5446

Dragović B, Meštrović R, Zrnić N, Dragović A, Petranović M. Modelling the Container Yard as an Operational System in a Port: The Case Studies. in Proceedings of the Maritime and Port Logistics of the XXIV International Conference MHCL 2022. 2022;:49-52.
https://hdl.handle.net/21.15107/rcub_machinery_5446 .

Dragović, Branislav, Meštrović, Romeo, Zrnić, Nenad, Dragović, Andro, Petranović, Mauro, "Modelling the Container Yard as an Operational System in a Port: The Case Studies" in Proceedings of the Maritime and Port Logistics of the XXIV International Conference MHCL 2022 (2022):49-52,
https://hdl.handle.net/21.15107/rcub_machinery_5446 .

TY  - CONF
AU  - Urošević, Marko
AU  - Zrnić, Nenad
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5003
AB  - Stackers are one of the vital parts of the system that work on the exploitation of coal in open-pit mines. During their exploitation life, they are exposed to hard working conditions in which dynamic and stochastic loads act on them. Therefore, the analysis of their dynamic behavior is necessary in order to prevent failures and ensure a longer working life. Given that the structure of the stackers is a dominantly spatial truss structure, the paper presents the procedure of forming a spatial reduced dynamic model of the stacker superstructure and analysis of the influence of the eccentricity of the discharge boom tension pulley created during the production process. The results are given through the displacements and accelerations of the referent points of the structure. The quantification of the eccentricity influence from the aspect of the dynamic behaviour of the machine is presented and discussed.
PB  - University of Belgrade, Faculty of Mechanical Engineering
C3  - Proceedings of the XXIV International Conference MHCL’22
T1  - The Impact of the Eccentricity of the Tension Pulley on the Dynamic Response of the Stacker Superstructure
EP  - 70
SP  - 61
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5003
ER  - 

@conference{
author = "Urošević, Marko and Zrnić, Nenad",
year = "2022",
abstract = "Stackers are one of the vital parts of the system that work on the exploitation of coal in open-pit mines. During their exploitation life, they are exposed to hard working conditions in which dynamic and stochastic loads act on them. Therefore, the analysis of their dynamic behavior is necessary in order to prevent failures and ensure a longer working life. Given that the structure of the stackers is a dominantly spatial truss structure, the paper presents the procedure of forming a spatial reduced dynamic model of the stacker superstructure and analysis of the influence of the eccentricity of the discharge boom tension pulley created during the production process. The results are given through the displacements and accelerations of the referent points of the structure. The quantification of the eccentricity influence from the aspect of the dynamic behaviour of the machine is presented and discussed.",
publisher = "University of Belgrade, Faculty of Mechanical Engineering",
journal = "Proceedings of the XXIV International Conference MHCL’22",
title = "The Impact of the Eccentricity of the Tension Pulley on the Dynamic Response of the Stacker Superstructure",
pages = "70-61",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5003"
}

Urošević, M.,& Zrnić, N.. (2022). The Impact of the Eccentricity of the Tension Pulley on the Dynamic Response of the Stacker Superstructure. in Proceedings of the XXIV International Conference MHCL’22
University of Belgrade, Faculty of Mechanical Engineering., 61-70.
https://hdl.handle.net/21.15107/rcub_machinery_5003

Urošević M, Zrnić N. The Impact of the Eccentricity of the Tension Pulley on the Dynamic Response of the Stacker Superstructure. in Proceedings of the XXIV International Conference MHCL’22. 2022;:61-70.
https://hdl.handle.net/21.15107/rcub_machinery_5003 .

Urošević, Marko, Zrnić, Nenad, "The Impact of the Eccentricity of the Tension Pulley on the Dynamic Response of the Stacker Superstructure" in Proceedings of the XXIV International Conference MHCL’22 (2022):61-70,
https://hdl.handle.net/21.15107/rcub_machinery_5003 .

TY  - CONF
AU  - Đorđević, Miloš
AU  - Zrnić, Nenad
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4798
AB  - The auxiliary lifting device is additional device – attachment to the regular
lifting device for lifting unit loads. This particular auxiliary lifting device
has extraordinary design. It is a device with a relatively large lifting
capacity, mechanism for span adjusting and mechanism for rotation
around vertical axis ± 360°. The final design solution has passed through
several modifications. The first design solution had capability of rotating
around vertical axis but the span could be adjusted manually by placing
hooking elements into predefined places along the span of the auxiliary
lifting device. The second design solution represented a mechanized
version of the first design solution in which the span adjustment was
performed mechanized using an electric motor. Further iterations in the
design sustained minor changes and adjustments. The final design solution
was produced and tested in operation.
PB  - University of Belgrade, Faculty of Mechanical Engineering
C3  - Proceedings of the 24th International Conference on Material Handling Constructions and Logistics MHCL 2022
T1  - Design of the rotating auxiliary lifting device with mechanized span adjusting and lifting capacity of 20 t
EP  - 28
SP  - 23
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4798
ER  - 

@conference{
author = "Đorđević, Miloš and Zrnić, Nenad",
year = "2022",
abstract = "The auxiliary lifting device is additional device – attachment to the regular
lifting device for lifting unit loads. This particular auxiliary lifting device
has extraordinary design. It is a device with a relatively large lifting
capacity, mechanism for span adjusting and mechanism for rotation
around vertical axis ± 360°. The final design solution has passed through
several modifications. The first design solution had capability of rotating
around vertical axis but the span could be adjusted manually by placing
hooking elements into predefined places along the span of the auxiliary
lifting device. The second design solution represented a mechanized
version of the first design solution in which the span adjustment was
performed mechanized using an electric motor. Further iterations in the
design sustained minor changes and adjustments. The final design solution
was produced and tested in operation.",
publisher = "University of Belgrade, Faculty of Mechanical Engineering",
journal = "Proceedings of the 24th International Conference on Material Handling Constructions and Logistics MHCL 2022",
title = "Design of the rotating auxiliary lifting device with mechanized span adjusting and lifting capacity of 20 t",
pages = "28-23",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4798"
}

Đorđević, M.,& Zrnić, N.. (2022). Design of the rotating auxiliary lifting device with mechanized span adjusting and lifting capacity of 20 t. in Proceedings of the 24th International Conference on Material Handling Constructions and Logistics MHCL 2022
University of Belgrade, Faculty of Mechanical Engineering., 23-28.
https://hdl.handle.net/21.15107/rcub_machinery_4798

Đorđević M, Zrnić N. Design of the rotating auxiliary lifting device with mechanized span adjusting and lifting capacity of 20 t. in Proceedings of the 24th International Conference on Material Handling Constructions and Logistics MHCL 2022. 2022;:23-28.
https://hdl.handle.net/21.15107/rcub_machinery_4798 .

Đorđević, Miloš, Zrnić, Nenad, "Design of the rotating auxiliary lifting device with mechanized span adjusting and lifting capacity of 20 t" in Proceedings of the 24th International Conference on Material Handling Constructions and Logistics MHCL 2022 (2022):23-28,
https://hdl.handle.net/21.15107/rcub_machinery_4798 .

TY  - JOUR
AU  - Zrnić, Nenad
AU  - Đorđević, Miloš
AU  - Gašić, Vlada
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4808
AB  - The evolution of belt conveyors, as an important type of continuous conveying machinery,
is examined here in a historical perspective. For this purpose, the selected period is from
the ancient time, i.e. occurrence of conveying equipment, and up to the end of the nineteenth
century. The basic postulation of a modern machine, including conveyors, is often
interlinked to that of its ancestor, which may be simple and primitive. Ancient machines
and principles of their work were the basis for later improvements which also brought the
inventions in engineering. For instance, Archimedes lifted water to high altitude with a
screw, which was regarded as the ancestor of today’s screw conveyor and essentially his
design has not changed since then. Bucket elevators also have their predecessors dating
back to ancient times. In the concrete case of belt conveyors, a first trace can be found in
the beginning of the seventeenth century, even classified as primitive example. During the
Industrial Revolutions, various machines, such conveyors, appeared. The first modern-like
belt conveyors are dedicated to the late eighteenth century due to the invention of Oliver
Evans in USA and to the nineteenth century, by Lyster in England, Lopatine in Russia and
Thomas Robins in USA. The technical solutions developed by the end of the nineteenth
century were forerunners of the today’s belt conveyors, while the key operational principles
have not changed.
PB  - Springer Nature
T2  - Foundations of Science
T1  - Historical Background and Evolution of Belt Conveyors
DO  - 10.1007/s10699-022-09894-6
ER  - 

@article{
author = "Zrnić, Nenad and Đorđević, Miloš and Gašić, Vlada",
year = "2022",
abstract = "The evolution of belt conveyors, as an important type of continuous conveying machinery,
is examined here in a historical perspective. For this purpose, the selected period is from
the ancient time, i.e. occurrence of conveying equipment, and up to the end of the nineteenth
century. The basic postulation of a modern machine, including conveyors, is often
interlinked to that of its ancestor, which may be simple and primitive. Ancient machines
and principles of their work were the basis for later improvements which also brought the
inventions in engineering. For instance, Archimedes lifted water to high altitude with a
screw, which was regarded as the ancestor of today’s screw conveyor and essentially his
design has not changed since then. Bucket elevators also have their predecessors dating
back to ancient times. In the concrete case of belt conveyors, a first trace can be found in
the beginning of the seventeenth century, even classified as primitive example. During the
Industrial Revolutions, various machines, such conveyors, appeared. The first modern-like
belt conveyors are dedicated to the late eighteenth century due to the invention of Oliver
Evans in USA and to the nineteenth century, by Lyster in England, Lopatine in Russia and
Thomas Robins in USA. The technical solutions developed by the end of the nineteenth
century were forerunners of the today’s belt conveyors, while the key operational principles
have not changed.",
publisher = "Springer Nature",
journal = "Foundations of Science",
title = "Historical Background and Evolution of Belt Conveyors",
doi = "10.1007/s10699-022-09894-6"
}

Zrnić, N., Đorđević, M.,& Gašić, V.. (2022). Historical Background and Evolution of Belt Conveyors. in Foundations of Science
Springer Nature..
https://doi.org/10.1007/s10699-022-09894-6

Zrnić N, Đorđević M, Gašić V. Historical Background and Evolution of Belt Conveyors. in Foundations of Science. 2022;.
doi:10.1007/s10699-022-09894-6 .

Zrnić, Nenad, Đorđević, Miloš, Gašić, Vlada, "Historical Background and Evolution of Belt Conveyors" in Foundations of Science (2022),
https://doi.org/10.1007/s10699-022-09894-6 . .

TY  - CONF
AU  - Zrnić, Nenad
AU  - Gašić, Vlada
AU  - Urošević, Marko
AU  - Arsić, Aleksandra
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4369
AB  - The paper deals with the mathematical modelling of the dynamic behavior of the structure of the ship unloader. It is given the procedure for formulation of the reduced dynamic model which retains the main aspects of the behavior of the structure and yet is simple enough to be performed with standard engineering tools. The approach is applied on the real bridge-type grab ship unloader but can also be used on similar complex structures. Initially, the complete structure is modelled with finite element software where the natural frequencies were obtained. This 3D model is reduced to an equivalent plane model of the sea-side part of the boom. The postulation of the analytical approach is based on the model of a simple beam with an overhang where dynamic analysis is concerned with the Rayleigh Ritz method for estimating the adopted admissible functions. The results of the modal analysis of the reduced mathematical model showed a small difference from the results of finite element analysis which stands for the verification of the presented approach.
PB  - Kraljevo : Faculty of Mechanical and Civil Engineering
C3  - Proceedings of X International Conference ”Heavy Machinery - HM 2021”, Vrnjačka Banja, 23-25. june 2021.
T1  - Finite Element and Analytical Modelling of Ship Unloader
EP  - A.18
SP  - A.13
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4369
ER  - 

@conference{
author = "Zrnić, Nenad and Gašić, Vlada and Urošević, Marko and Arsić, Aleksandra",
year = "2021",
abstract = "The paper deals with the mathematical modelling of the dynamic behavior of the structure of the ship unloader. It is given the procedure for formulation of the reduced dynamic model which retains the main aspects of the behavior of the structure and yet is simple enough to be performed with standard engineering tools. The approach is applied on the real bridge-type grab ship unloader but can also be used on similar complex structures. Initially, the complete structure is modelled with finite element software where the natural frequencies were obtained. This 3D model is reduced to an equivalent plane model of the sea-side part of the boom. The postulation of the analytical approach is based on the model of a simple beam with an overhang where dynamic analysis is concerned with the Rayleigh Ritz method for estimating the adopted admissible functions. The results of the modal analysis of the reduced mathematical model showed a small difference from the results of finite element analysis which stands for the verification of the presented approach.",
publisher = "Kraljevo : Faculty of Mechanical and Civil Engineering",
journal = "Proceedings of X International Conference ”Heavy Machinery - HM 2021”, Vrnjačka Banja, 23-25. june 2021.",
title = "Finite Element and Analytical Modelling of Ship Unloader",
pages = "A.18-A.13",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4369"
}

Zrnić, N., Gašić, V., Urošević, M.,& Arsić, A.. (2021). Finite Element and Analytical Modelling of Ship Unloader. in Proceedings of X International Conference ”Heavy Machinery - HM 2021”, Vrnjačka Banja, 23-25. june 2021.
Kraljevo : Faculty of Mechanical and Civil Engineering., A.13-A.18.
https://hdl.handle.net/21.15107/rcub_machinery_4369

Zrnić N, Gašić V, Urošević M, Arsić A. Finite Element and Analytical Modelling of Ship Unloader. in Proceedings of X International Conference ”Heavy Machinery - HM 2021”, Vrnjačka Banja, 23-25. june 2021.. 2021;:A.13-A.18.
https://hdl.handle.net/21.15107/rcub_machinery_4369 .

Zrnić, Nenad, Gašić, Vlada, Urošević, Marko, Arsić, Aleksandra, "Finite Element and Analytical Modelling of Ship Unloader" in Proceedings of X International Conference ”Heavy Machinery - HM 2021”, Vrnjačka Banja, 23-25. june 2021. (2021):A.13-A.18,
https://hdl.handle.net/21.15107/rcub_machinery_4369 .

TY  - CONF
AU  - Zrnić, Nenad
AU  - Popović, Tamara
AU  - Milojević, Goran
AU  - Kosanić, Nenad
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5438
AB  - This paper presents the research, development and application of Industry 4.0 in Intralogistics in the last five years.
The progress made in Intralogistics, using Industry 4.0, is presented. An overview of the basic principles and elements of
Industry 4.0 as well as its impact in the field of Intralogistics is given. Intralogistics is a field that is still being researched
and has great potential for further development. Finally, the aim of this paper is to focus on sustainability parameters,
technology and elements that still need to be worked on.
PB  - Faculty of Mechanical and Civil Engineering in Kraljevo
C3  - Proceedings of X International Conference “Heavy Machinery-HM 2021”
T1  - A Survey of Research on Industry 4.0 in Intralogistics
EP  - B.8
SP  - B.1
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5438
ER  - 

@conference{
author = "Zrnić, Nenad and Popović, Tamara and Milojević, Goran and Kosanić, Nenad",
year = "2021",
abstract = "This paper presents the research, development and application of Industry 4.0 in Intralogistics in the last five years.
The progress made in Intralogistics, using Industry 4.0, is presented. An overview of the basic principles and elements of
Industry 4.0 as well as its impact in the field of Intralogistics is given. Intralogistics is a field that is still being researched
and has great potential for further development. Finally, the aim of this paper is to focus on sustainability parameters,
technology and elements that still need to be worked on.",
publisher = "Faculty of Mechanical and Civil Engineering in Kraljevo",
journal = "Proceedings of X International Conference “Heavy Machinery-HM 2021”",
title = "A Survey of Research on Industry 4.0 in Intralogistics",
pages = "B.8-B.1",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5438"
}

Zrnić, N., Popović, T., Milojević, G.,& Kosanić, N.. (2021). A Survey of Research on Industry 4.0 in Intralogistics. in Proceedings of X International Conference “Heavy Machinery-HM 2021”
Faculty of Mechanical and Civil Engineering in Kraljevo., B.1-B.8.
https://hdl.handle.net/21.15107/rcub_machinery_5438

Zrnić N, Popović T, Milojević G, Kosanić N. A Survey of Research on Industry 4.0 in Intralogistics. in Proceedings of X International Conference “Heavy Machinery-HM 2021”. 2021;:B.1-B.8.
https://hdl.handle.net/21.15107/rcub_machinery_5438 .

Zrnić, Nenad, Popović, Tamara, Milojević, Goran, Kosanić, Nenad, "A Survey of Research on Industry 4.0 in Intralogistics" in Proceedings of X International Conference “Heavy Machinery-HM 2021” (2021):B.1-B.8,
https://hdl.handle.net/21.15107/rcub_machinery_5438 .

TY  - JOUR
AU  - Gašić, Vlada
AU  - Arsić, Aleksandra
AU  - Zrnić, Nenad
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3497
AB  - The analysis of behaviour of extended one-sided stiffened bolted end-plate moment connection is revisited here. On the basis of experimental tests, the behaviour of beam-to-column joint with and without stiffener is investigated. The stress distribution and deformation characteristics were determined and discussed with corresponding results of finite element analysis of joint behaviour. Furthermore, the extensive finite element simulations were carried out and the obtained results are discussed in this paper. The main analyzed parameters are the geometrical characteristics of the plates added to the beam-to-column joint. Their influence on joint resistance and stiffness is observed including the possibility of material cost optimization. Overall, the comparison of used approaches confirms their conjoint importance except for the postulation where the stiffener is assumed to behave as a strut in the joint. Also, there are some practical recommendations in design which can be used by engineers.
PB  - Elsevier Science Inc, New York
T2  - Structures
T1  - Strength of extended stiffened end-plate bolted joints: Experimental and numerical analysis
EP  - 89
SP  - 77
VL  - 33
DO  - 10.1016/j.istruc.2021.04.016
ER  - 

@article{
author = "Gašić, Vlada and Arsić, Aleksandra and Zrnić, Nenad",
year = "2021",
abstract = "The analysis of behaviour of extended one-sided stiffened bolted end-plate moment connection is revisited here. On the basis of experimental tests, the behaviour of beam-to-column joint with and without stiffener is investigated. The stress distribution and deformation characteristics were determined and discussed with corresponding results of finite element analysis of joint behaviour. Furthermore, the extensive finite element simulations were carried out and the obtained results are discussed in this paper. The main analyzed parameters are the geometrical characteristics of the plates added to the beam-to-column joint. Their influence on joint resistance and stiffness is observed including the possibility of material cost optimization. Overall, the comparison of used approaches confirms their conjoint importance except for the postulation where the stiffener is assumed to behave as a strut in the joint. Also, there are some practical recommendations in design which can be used by engineers.",
publisher = "Elsevier Science Inc, New York",
journal = "Structures",
title = "Strength of extended stiffened end-plate bolted joints: Experimental and numerical analysis",
pages = "89-77",
volume = "33",
doi = "10.1016/j.istruc.2021.04.016"
}

Gašić, V., Arsić, A.,& Zrnić, N.. (2021). Strength of extended stiffened end-plate bolted joints: Experimental and numerical analysis. in Structures
Elsevier Science Inc, New York., 33, 77-89.
https://doi.org/10.1016/j.istruc.2021.04.016

Gašić V, Arsić A, Zrnić N. Strength of extended stiffened end-plate bolted joints: Experimental and numerical analysis. in Structures. 2021;33:77-89.
doi:10.1016/j.istruc.2021.04.016 .

Gašić, Vlada, Arsić, Aleksandra, Zrnić, Nenad, "Strength of extended stiffened end-plate bolted joints: Experimental and numerical analysis" in Structures, 33 (2021):77-89,
https://doi.org/10.1016/j.istruc.2021.04.016 . .

TY  - JOUR
AU  - Bošnjak, Srđan
AU  - Zrnić, Nenad
AU  - Momčilović, Dejan B.
AU  - Gnjatović, Nebojša
AU  - Milenović, Ivan Lj.
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3400
AB  - Tie-rods of the bucket wheel and counterweight booms are vital parts of the bucket wheel excavator slewing superstructure. This paper is dedicated to the problem of identifying the stress state of the critical cross-section ('net section') of the eye plates on these tie-rods. It presents the results of the experimental and numerical investigations carried out on the eyebar model. The results show the appearance of a plastic deformation in the zone near the contour of the hole even when the eye is subjected to the loads within the range of the permissible loads prescribed by the standard DIN 22261-2. Plastification in the eye net section occurs across the full thickness of the plate, but it does not jeopardize the integrity of the structure. The stress value in the eye net section, calculated in accordance with the standard DIN 22261-2, is significantly lower than the actual stress values around the hole and serves only as a comparative value for the static strength proof for the eye.
PB  - Elsevier Sci Ltd, Oxford
T2  - Engineering Structures
T1  - Tie-rods of the bucket wheel excavator slewing superstructure: A study of the eye plate stress state
VL  - 207
DO  - 10.1016/j.engstruct.2020.110233
ER  - 

@article{
author = "Bošnjak, Srđan and Zrnić, Nenad and Momčilović, Dejan B. and Gnjatović, Nebojša and Milenović, Ivan Lj.",
year = "2020",
abstract = "Tie-rods of the bucket wheel and counterweight booms are vital parts of the bucket wheel excavator slewing superstructure. This paper is dedicated to the problem of identifying the stress state of the critical cross-section ('net section') of the eye plates on these tie-rods. It presents the results of the experimental and numerical investigations carried out on the eyebar model. The results show the appearance of a plastic deformation in the zone near the contour of the hole even when the eye is subjected to the loads within the range of the permissible loads prescribed by the standard DIN 22261-2. Plastification in the eye net section occurs across the full thickness of the plate, but it does not jeopardize the integrity of the structure. The stress value in the eye net section, calculated in accordance with the standard DIN 22261-2, is significantly lower than the actual stress values around the hole and serves only as a comparative value for the static strength proof for the eye.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Engineering Structures",
title = "Tie-rods of the bucket wheel excavator slewing superstructure: A study of the eye plate stress state",
volume = "207",
doi = "10.1016/j.engstruct.2020.110233"
}

Bošnjak, S., Zrnić, N., Momčilović, D. B., Gnjatović, N.,& Milenović, I. Lj.. (2020). Tie-rods of the bucket wheel excavator slewing superstructure: A study of the eye plate stress state. in Engineering Structures
Elsevier Sci Ltd, Oxford., 207.
https://doi.org/10.1016/j.engstruct.2020.110233

Bošnjak S, Zrnić N, Momčilović DB, Gnjatović N, Milenović IL. Tie-rods of the bucket wheel excavator slewing superstructure: A study of the eye plate stress state. in Engineering Structures. 2020;207.
doi:10.1016/j.engstruct.2020.110233 .

Bošnjak, Srđan, Zrnić, Nenad, Momčilović, Dejan B., Gnjatović, Nebojša, Milenović, Ivan Lj., "Tie-rods of the bucket wheel excavator slewing superstructure: A study of the eye plate stress state" in Engineering Structures, 207 (2020),
https://doi.org/10.1016/j.engstruct.2020.110233 . .

TY  - CONF
AU  - Arsić, Aleksandra
AU  - Gašić, Vlada
AU  - Zrnić, Nenad
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4374
AB  - The end-plate bolted connections are widely used in the construction of metal buildings and steel portal frames and play a crucial role in the safety of steel structures. Studies agreed that joint rotational behavior should be considered in frame analysis due to the fact that majority of these joints are semi-rigid. This paper gives a survey on the progress in this topic, based on the studies in the last decade and main design approaches which are analytical, numerical and experimental. There are noted some principal characteristics of each method, along with some advantages and disadvantages. The illustrative example is given to describe the situation when all the mentioned methods are included on the single joint. It is proposed, as a good practice, to propose analytical model in that way to comply with experimental verification and to use numerical model in the form of validation in the last stages of joint design. Finally, it is noted that joint behavior under monotonic or cyclic loading, within the scope of the ductile failure modes of the joint, can be controlled with the design parameters of the end-plate and bolts.
PB  - Beograd : Institut za istraživanja i projektovanja u privredi
C3  - Proceedings of YOUng ResearcherS Conference 2020
T1  - Some aspects on the design approaches for bolted moment connections in frames
EP  - 104
SP  - 98
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4374
ER  - 

@conference{
author = "Arsić, Aleksandra and Gašić, Vlada and Zrnić, Nenad",
year = "2020",
abstract = "The end-plate bolted connections are widely used in the construction of metal buildings and steel portal frames and play a crucial role in the safety of steel structures. Studies agreed that joint rotational behavior should be considered in frame analysis due to the fact that majority of these joints are semi-rigid. This paper gives a survey on the progress in this topic, based on the studies in the last decade and main design approaches which are analytical, numerical and experimental. There are noted some principal characteristics of each method, along with some advantages and disadvantages. The illustrative example is given to describe the situation when all the mentioned methods are included on the single joint. It is proposed, as a good practice, to propose analytical model in that way to comply with experimental verification and to use numerical model in the form of validation in the last stages of joint design. Finally, it is noted that joint behavior under monotonic or cyclic loading, within the scope of the ductile failure modes of the joint, can be controlled with the design parameters of the end-plate and bolts.",
publisher = "Beograd : Institut za istraživanja i projektovanja u privredi",
journal = "Proceedings of YOUng ResearcherS Conference 2020",
title = "Some aspects on the design approaches for bolted moment connections in frames",
pages = "104-98",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4374"
}

Arsić, A., Gašić, V.,& Zrnić, N.. (2020). Some aspects on the design approaches for bolted moment connections in frames. in Proceedings of YOUng ResearcherS Conference 2020
Beograd : Institut za istraživanja i projektovanja u privredi., 98-104.
https://hdl.handle.net/21.15107/rcub_machinery_4374

Arsić A, Gašić V, Zrnić N. Some aspects on the design approaches for bolted moment connections in frames. in Proceedings of YOUng ResearcherS Conference 2020. 2020;:98-104.
https://hdl.handle.net/21.15107/rcub_machinery_4374 .

Arsić, Aleksandra, Gašić, Vlada, Zrnić, Nenad, "Some aspects on the design approaches for bolted moment connections in frames" in Proceedings of YOUng ResearcherS Conference 2020 (2020):98-104,
https://hdl.handle.net/21.15107/rcub_machinery_4374 .

TY  - JOUR
AU  - Bojić, Sanja
AU  - Zrnić, Nenad
AU  - Rajković, Radoslav
AU  - Dragović, Branislav
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5435
AB  - An efficient and sustainable intermodal transport of containers requires the optimization of transportation costs and time while minimizing greenhouse gas emissions. For these purposes, within the DBS Gateway Region project, a Pilot Action has been performed focused on the sustainable intermodal transport of containers in the DBS (Danube Black Sea) region. The Pilot Action included two main activities: development of a multi-criteria route optimization application for container transport and tracking and tracing of a container on an intermodal route from China to Serbia to detect the existing bottlenecks and provide recommendations for the development of sustainable intermodal transport in the DBS Gateway Region.
PB  - Budapest Business School University of Applied Sciences
T2  - Prosperitas
T1  - Optimization of container transport routes
EP  - 42
IS  - 1
SP  - 31
VL  - 7
DO  - 10.31570/Prosp_2020_01_3
ER  - 

@article{
author = "Bojić, Sanja and Zrnić, Nenad and Rajković, Radoslav and Dragović, Branislav",
year = "2020",
abstract = "An efficient and sustainable intermodal transport of containers requires the optimization of transportation costs and time while minimizing greenhouse gas emissions. For these purposes, within the DBS Gateway Region project, a Pilot Action has been performed focused on the sustainable intermodal transport of containers in the DBS (Danube Black Sea) region. The Pilot Action included two main activities: development of a multi-criteria route optimization application for container transport and tracking and tracing of a container on an intermodal route from China to Serbia to detect the existing bottlenecks and provide recommendations for the development of sustainable intermodal transport in the DBS Gateway Region.",
publisher = "Budapest Business School University of Applied Sciences",
journal = "Prosperitas",
title = "Optimization of container transport routes",
pages = "42-31",
number = "1",
volume = "7",
doi = "10.31570/Prosp_2020_01_3"
}

Bojić, S., Zrnić, N., Rajković, R.,& Dragović, B.. (2020). Optimization of container transport routes. in Prosperitas
Budapest Business School University of Applied Sciences., 7(1), 31-42.
https://doi.org/10.31570/Prosp_2020_01_3

Bojić S, Zrnić N, Rajković R, Dragović B. Optimization of container transport routes. in Prosperitas. 2020;7(1):31-42.
doi:10.31570/Prosp_2020_01_3 .

Bojić, Sanja, Zrnić, Nenad, Rajković, Radoslav, Dragović, Branislav, "Optimization of container transport routes" in Prosperitas, 7, no. 1 (2020):31-42,
https://doi.org/10.31570/Prosp_2020_01_3 . .

TY  - JOUR
AU  - Solazzi, Luigi
AU  - Zrnić, Nenad
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3293
AB  - Izučava se dinamičko ponašanje realne portalne dizalice izložene većem broju pokreta kolica i korisnog tereta. Razvijen je poseban numerički postupak koji je primenjen metodom konačnih elemenata na simulaciju različitih načina kretanja glavne grede. Rezultati jasno pokazuju da pomeraj krana, naročito longitudinalni, u velikoj meri zavisi od ubrzanja kako u početnoj tako i u fazi zaustavljanja, čemu su kolica izložena za vreme kretanja glavne grede krana. Poslednji deo rada prikazuje simulaciju iznenadnog zaustavljanja kretanja kolica i potonjeg ljuljanja korisnog tereta; u ovom slučaju, dužina užeta koje zaustavlja koristan teret na kolicima ima glavnu ulogu u određivanju kretanja i maksimalnog longitudinalnog pomeraja dizalice.
AB  - The aim of this research is to study the dynamic behaviour of a real gantry crane subjected to the actions induced by the trolley and payload movement. A specific numerical procedure was developed and implemented in the finite element method in order to simulate different trolley movement modes on the crane's main beam. From the results, it is clear that the crane displacement, especially the longitudinal one, is strongly dependent on the acceleration both in the starting phase and in the stopping phase to which the trolley is subjected during its movement on the crane main beam. The last part of this research simulates the sudden stop of the trolley movement and subsequent payload swinging; in this case, the length of the rope that suspend the payload to the trolley has a fundamental role in the trend and maximum longitudinal crane displacement value.
PB  - Univerzitet u Beogradu - Mašinski fakultet, Beograd
T2  - FME Transactions
T1  - Dinamička analiza portalne dizalice pri većem broju pokreta kolica i korisnog tereta
T1  - Dynamic analyses of gantry crane under several trolley and payload movements
EP  - 286
IS  - 2
SP  - 281
VL  - 48
DO  - 10.5937/fme2002281S
ER  - 

@article{
author = "Solazzi, Luigi and Zrnić, Nenad",
year = "2020",
abstract = "Izučava se dinamičko ponašanje realne portalne dizalice izložene većem broju pokreta kolica i korisnog tereta. Razvijen je poseban numerički postupak koji je primenjen metodom konačnih elemenata na simulaciju različitih načina kretanja glavne grede. Rezultati jasno pokazuju da pomeraj krana, naročito longitudinalni, u velikoj meri zavisi od ubrzanja kako u početnoj tako i u fazi zaustavljanja, čemu su kolica izložena za vreme kretanja glavne grede krana. Poslednji deo rada prikazuje simulaciju iznenadnog zaustavljanja kretanja kolica i potonjeg ljuljanja korisnog tereta; u ovom slučaju, dužina užeta koje zaustavlja koristan teret na kolicima ima glavnu ulogu u određivanju kretanja i maksimalnog longitudinalnog pomeraja dizalice., The aim of this research is to study the dynamic behaviour of a real gantry crane subjected to the actions induced by the trolley and payload movement. A specific numerical procedure was developed and implemented in the finite element method in order to simulate different trolley movement modes on the crane's main beam. From the results, it is clear that the crane displacement, especially the longitudinal one, is strongly dependent on the acceleration both in the starting phase and in the stopping phase to which the trolley is subjected during its movement on the crane main beam. The last part of this research simulates the sudden stop of the trolley movement and subsequent payload swinging; in this case, the length of the rope that suspend the payload to the trolley has a fundamental role in the trend and maximum longitudinal crane displacement value.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd",
journal = "FME Transactions",
title = "Dinamička analiza portalne dizalice pri većem broju pokreta kolica i korisnog tereta, Dynamic analyses of gantry crane under several trolley and payload movements",
pages = "286-281",
number = "2",
volume = "48",
doi = "10.5937/fme2002281S"
}

Solazzi, L.,& Zrnić, N.. (2020). Dinamička analiza portalne dizalice pri većem broju pokreta kolica i korisnog tereta. in FME Transactions
Univerzitet u Beogradu - Mašinski fakultet, Beograd., 48(2), 281-286.
https://doi.org/10.5937/fme2002281S

Solazzi L, Zrnić N. Dinamička analiza portalne dizalice pri većem broju pokreta kolica i korisnog tereta. in FME Transactions. 2020;48(2):281-286.
doi:10.5937/fme2002281S .

Solazzi, Luigi, Zrnić, Nenad, "Dinamička analiza portalne dizalice pri većem broju pokreta kolica i korisnog tereta" in FME Transactions, 48, no. 2 (2020):281-286,
https://doi.org/10.5937/fme2002281S . .

TY  - CONF
AU  - Zrnić, Nenad
AU  - Bojić, Sanja
AU  - Georgijević, Milošav
AU  - Urošević, Marko
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5449
AB  - This paper deals with problems and possible solutions for the
improvement of container transport of Serbia by using Danube as a
waterway. Given the geographical position in relation to the Danube,
Serbia has a sufficient number of ports on this river, which could be an
element of further development of the economy and therefore can be
considered as a great potential. An analysis of import and export of
container that was done in this paper indicates that Serbia has substantial
potential to transport containers on Danube. Consequently, there are
sufficient justifications for the design and construction of a modern
container terminal on the Danube which will connected Serbia with main
Europian ports and which will contribute to the further progress of the
Serbian economy.
PB  - SaTCIP
C3  - Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019
T1  - Analysis of the potential of Serbia to transport containers on Danube
EP  - 37
SP  - 32
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5449
ER  - 

@conference{
author = "Zrnić, Nenad and Bojić, Sanja and Georgijević, Milošav and Urošević, Marko",
year = "2019",
abstract = "This paper deals with problems and possible solutions for the
improvement of container transport of Serbia by using Danube as a
waterway. Given the geographical position in relation to the Danube,
Serbia has a sufficient number of ports on this river, which could be an
element of further development of the economy and therefore can be
considered as a great potential. An analysis of import and export of
container that was done in this paper indicates that Serbia has substantial
potential to transport containers on Danube. Consequently, there are
sufficient justifications for the design and construction of a modern
container terminal on the Danube which will connected Serbia with main
Europian ports and which will contribute to the further progress of the
Serbian economy.",
publisher = "SaTCIP",
journal = "Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019",
title = "Analysis of the potential of Serbia to transport containers on Danube",
pages = "37-32",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5449"
}

Zrnić, N., Bojić, S., Georgijević, M.,& Urošević, M.. (2019). Analysis of the potential of Serbia to transport containers on Danube. in Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019
SaTCIP., 32-37.
https://hdl.handle.net/21.15107/rcub_machinery_5449

Zrnić N, Bojić S, Georgijević M, Urošević M. Analysis of the potential of Serbia to transport containers on Danube. in Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019. 2019;:32-37.
https://hdl.handle.net/21.15107/rcub_machinery_5449 .

Zrnić, Nenad, Bojić, Sanja, Georgijević, Milošav, Urošević, Marko, "Analysis of the potential of Serbia to transport containers on Danube" in Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019 (2019):32-37,
https://hdl.handle.net/21.15107/rcub_machinery_5449 .

TY  - CONF
AU  - Meštrović, Romeo
AU  - Dragović, Branislav
AU  - Zrnić, Nenad
AU  - Dragojević, Dražen
AU  - Popović, Marko
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5452
AB  - In this paper we deduce related expression for the specific cost ratio
concerning the M /G/1 queue using the known general expression for
the specific cost ratio and the Pollaczek–Khintchine formula for the
M /G/1 queue. Moreover, we also present related numerical and
graphical results including the cases concerning the M /M /1 and
M / D/1 queues. The deduced formula gives a possibility for
comparison of values of specific cost ratio of different M /G/1 type
queues. The corresponding optimization is considered in the sense of
minimization of values of the appropriate specific cost ratio under some
constraints to the values  (the utilization factor). The proposed method
is exposed by some numerical experiments.
PB  - SaTCIP
C3  - Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019
T1  - On Specific Cost Ratio in a Port Modelled as M /G/1 Queue
EP  - 203
SP  - 200
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5452
ER  - 

@conference{
author = "Meštrović, Romeo and Dragović, Branislav and Zrnić, Nenad and Dragojević, Dražen and Popović, Marko",
year = "2019",
abstract = "In this paper we deduce related expression for the specific cost ratio
concerning the M /G/1 queue using the known general expression for
the specific cost ratio and the Pollaczek–Khintchine formula for the
M /G/1 queue. Moreover, we also present related numerical and
graphical results including the cases concerning the M /M /1 and
M / D/1 queues. The deduced formula gives a possibility for
comparison of values of specific cost ratio of different M /G/1 type
queues. The corresponding optimization is considered in the sense of
minimization of values of the appropriate specific cost ratio under some
constraints to the values  (the utilization factor). The proposed method
is exposed by some numerical experiments.",
publisher = "SaTCIP",
journal = "Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019",
title = "On Specific Cost Ratio in a Port Modelled as M /G/1 Queue",
pages = "203-200",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5452"
}

Meštrović, R., Dragović, B., Zrnić, N., Dragojević, D.,& Popović, M.. (2019). On Specific Cost Ratio in a Port Modelled as M /G/1 Queue. in Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019
SaTCIP., 200-203.
https://hdl.handle.net/21.15107/rcub_machinery_5452

Meštrović R, Dragović B, Zrnić N, Dragojević D, Popović M. On Specific Cost Ratio in a Port Modelled as M /G/1 Queue. in Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019. 2019;:200-203.
https://hdl.handle.net/21.15107/rcub_machinery_5452 .

Meštrović, Romeo, Dragović, Branislav, Zrnić, Nenad, Dragojević, Dražen, Popović, Marko, "On Specific Cost Ratio in a Port Modelled as M /G/1 Queue" in Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019 (2019):200-203,
https://hdl.handle.net/21.15107/rcub_machinery_5452 .

TY  - CONF
AU  - Meštrović, Romeo
AU  - Dragović, Branislav
AU  - Zrnić, Nenad
AU  - Perković, Milija
AU  - Perazić, Kenan
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5451
AB  - In this paper we consider the loading processes at seaside link of Seaport
automobile Automobile Terminal (SAT) as a bulk queuing model of the
form M X g /D/1// s . We deduce the recursive equation for the steadystate
probabilities concerning this queue model. Using this recursive
equation, we obtain the explicit expressions for the steady-state
probabilities with indices up to four. All these steady-state probabilities
are expressed as a function on the utlization factor (  ) and the size of
every arriving group at the ramp ( g ). Related numerical and graphical
results are also presented. As applications, it is considered and discussed
the modeling process at the SAT in the Port of Bar.
PB  - SaTCIP
C3  - Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019
T1  - Some Further Consideration of Modeling Process at the Seaport Automobile Terminals
EP  - 151
SP  - 147
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5451
ER  - 

@conference{
author = "Meštrović, Romeo and Dragović, Branislav and Zrnić, Nenad and Perković, Milija and Perazić, Kenan",
year = "2019",
abstract = "In this paper we consider the loading processes at seaside link of Seaport
automobile Automobile Terminal (SAT) as a bulk queuing model of the
form M X g /D/1// s . We deduce the recursive equation for the steadystate
probabilities concerning this queue model. Using this recursive
equation, we obtain the explicit expressions for the steady-state
probabilities with indices up to four. All these steady-state probabilities
are expressed as a function on the utlization factor (  ) and the size of
every arriving group at the ramp ( g ). Related numerical and graphical
results are also presented. As applications, it is considered and discussed
the modeling process at the SAT in the Port of Bar.",
publisher = "SaTCIP",
journal = "Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019",
title = "Some Further Consideration of Modeling Process at the Seaport Automobile Terminals",
pages = "151-147",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5451"
}

Meštrović, R., Dragović, B., Zrnić, N., Perković, M.,& Perazić, K.. (2019). Some Further Consideration of Modeling Process at the Seaport Automobile Terminals. in Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019
SaTCIP., 147-151.
https://hdl.handle.net/21.15107/rcub_machinery_5451

Meštrović R, Dragović B, Zrnić N, Perković M, Perazić K. Some Further Consideration of Modeling Process at the Seaport Automobile Terminals. in Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019. 2019;:147-151.
https://hdl.handle.net/21.15107/rcub_machinery_5451 .

Meštrović, Romeo, Dragović, Branislav, Zrnić, Nenad, Perković, Milija, Perazić, Kenan, "Some Further Consideration of Modeling Process at the Seaport Automobile Terminals" in Proceedings of the Maritime and Port Logistics of the XXIII International Conference MHCL 2019 (2019):147-151,
https://hdl.handle.net/21.15107/rcub_machinery_5451 .

TY  - CONF
AU  - Zrnić, Nenad
AU  - Bojić, Sanja
AU  - Georgijević, Milošav
AU  - Urošević, Marko
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4998
AB  - This paper discusses the possibility the establish and construct a new container terminal in the Port of Novi Sad which has regional and international importance and good geographical position, located in the Serbian Autonomous Province of Vojvodina. The provided analysis presents current container flows in Serbia and the forecast for the next 5 and 10 years (including three scenarios: realistic, pessimistic and optimistic), at first for the whole country, but later on the analysis was focused on the Danube gravitating regions in Serbia and finally to the existing Port of Novi Sad in order to evaluate its potential to become a logistics center. It was concluded that the construction of a new container terminal in the Port of Novi Sad on the Danube aims to bring about a significant change in the container transport system in Serbia, but also in the region or the Danube countries.
PB  - University of Belgrade, Faculty of Mechanical Engineering
C3  - Proceedings of the XXIII International Conference MHCL’19
T1  - Analysis of the potential of the Port of Novi Sad to become a new container terminal on Danube
EP  - 298
SP  - 293
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4998
ER  - 

@conference{
author = "Zrnić, Nenad and Bojić, Sanja and Georgijević, Milošav and Urošević, Marko",
year = "2019",
abstract = "This paper discusses the possibility the establish and construct a new container terminal in the Port of Novi Sad which has regional and international importance and good geographical position, located in the Serbian Autonomous Province of Vojvodina. The provided analysis presents current container flows in Serbia and the forecast for the next 5 and 10 years (including three scenarios: realistic, pessimistic and optimistic), at first for the whole country, but later on the analysis was focused on the Danube gravitating regions in Serbia and finally to the existing Port of Novi Sad in order to evaluate its potential to become a logistics center. It was concluded that the construction of a new container terminal in the Port of Novi Sad on the Danube aims to bring about a significant change in the container transport system in Serbia, but also in the region or the Danube countries.",
publisher = "University of Belgrade, Faculty of Mechanical Engineering",
journal = "Proceedings of the XXIII International Conference MHCL’19",
title = "Analysis of the potential of the Port of Novi Sad to become a new container terminal on Danube",
pages = "298-293",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4998"
}

Zrnić, N., Bojić, S., Georgijević, M.,& Urošević, M.. (2019). Analysis of the potential of the Port of Novi Sad to become a new container terminal on Danube. in Proceedings of the XXIII International Conference MHCL’19
University of Belgrade, Faculty of Mechanical Engineering., 293-298.
https://hdl.handle.net/21.15107/rcub_machinery_4998

Zrnić N, Bojić S, Georgijević M, Urošević M. Analysis of the potential of the Port of Novi Sad to become a new container terminal on Danube. in Proceedings of the XXIII International Conference MHCL’19. 2019;:293-298.
https://hdl.handle.net/21.15107/rcub_machinery_4998 .

Zrnić, Nenad, Bojić, Sanja, Georgijević, Milošav, Urošević, Marko, "Analysis of the potential of the Port of Novi Sad to become a new container terminal on Danube" in Proceedings of the XXIII International Conference MHCL’19 (2019):293-298,
https://hdl.handle.net/21.15107/rcub_machinery_4998 .

TY  - CONF
AU  - Đorđević, Miloš
AU  - Milojević, Goran
AU  - Vujičić, A.
AU  - Zrnić, Nenad
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4797
AB  - This paper deals with the LCA of a ball bearing used in belt conveyor idler.
Previous work had shown that ball bearing is manufacture intensive
product. Therefore herein conducted LCA is cradle-to-gate analysis and it
was focused on the production stage of the ball bearing. Chromium steel
and stainless steel were considered as ball bearing materials. Results had
shown that chromium steel from the ball bearing has the highest
environmental impact in all impact categories, followed by processes
related to machining of the chromium steel and forging. Change of the
lubricant harmed the environmental properties in this case. Future work
should consider different materials for raceways and balls.
PB  - University of Belgrade, Faculty of Mechanical Engineering
C3  - Proceedings of the 23rd International Conference on Material Handling Constructions and Logistics MHCL 2019
T1  - Life Cycle Assessment of The Belt Conveyor Idler Ball Bearing
EP  - 116
SP  - 111
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4797
ER  - 

@conference{
author = "Đorđević, Miloš and Milojević, Goran and Vujičić, A. and Zrnić, Nenad",
year = "2019",
abstract = "This paper deals with the LCA of a ball bearing used in belt conveyor idler.
Previous work had shown that ball bearing is manufacture intensive
product. Therefore herein conducted LCA is cradle-to-gate analysis and it
was focused on the production stage of the ball bearing. Chromium steel
and stainless steel were considered as ball bearing materials. Results had
shown that chromium steel from the ball bearing has the highest
environmental impact in all impact categories, followed by processes
related to machining of the chromium steel and forging. Change of the
lubricant harmed the environmental properties in this case. Future work
should consider different materials for raceways and balls.",
publisher = "University of Belgrade, Faculty of Mechanical Engineering",
journal = "Proceedings of the 23rd International Conference on Material Handling Constructions and Logistics MHCL 2019",
title = "Life Cycle Assessment of The Belt Conveyor Idler Ball Bearing",
pages = "116-111",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4797"
}

Đorđević, M., Milojević, G., Vujičić, A.,& Zrnić, N.. (2019). Life Cycle Assessment of The Belt Conveyor Idler Ball Bearing. in Proceedings of the 23rd International Conference on Material Handling Constructions and Logistics MHCL 2019
University of Belgrade, Faculty of Mechanical Engineering., 111-116.
https://hdl.handle.net/21.15107/rcub_machinery_4797

Đorđević M, Milojević G, Vujičić A, Zrnić N. Life Cycle Assessment of The Belt Conveyor Idler Ball Bearing. in Proceedings of the 23rd International Conference on Material Handling Constructions and Logistics MHCL 2019. 2019;:111-116.
https://hdl.handle.net/21.15107/rcub_machinery_4797 .

Đorđević, Miloš, Milojević, Goran, Vujičić, A., Zrnić, Nenad, "Life Cycle Assessment of The Belt Conveyor Idler Ball Bearing" in Proceedings of the 23rd International Conference on Material Handling Constructions and Logistics MHCL 2019 (2019):111-116,
https://hdl.handle.net/21.15107/rcub_machinery_4797 .

TY  - JOUR
AU  - Rajković, Miloš
AU  - Zrnić, Nenad
AU  - Kosanić, Nenad
AU  - Borovinšek, Matej
AU  - Lerher, Tone
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3245
AB  - A new optimization model of Automated Storage and Retrieval Systems (AS/RS) containing three objective and four constraint functions is presented in this paper. Majority of the researchers and publications in material handling field had performed optimization of different decision variables, but with single objective function only. Most common functions are: minimum travel time, maximum throughput capacity, minimum cost, maximum energy efficiency, etc. To perform the simultaneous optimization of objective functions (minimum: "investment expenses", "cycle times", "CO2 footprint") the Non-dominated Sorting Genetic Algorithm II (NSGA II) was used. The NSGA II is a tool for finding the Pareto optimal solutions on the Pareto line. Determining the performance of the system is the main goal of our model. Since AS/RS are not flexible in terms of layout and organizational changes once the system is up and running, the proposed model could be a very helpful tool for the warehouse planners in the early stages of warehouse design.
PB  - Vilnius Gediminas Tech Univ, Vilnius
T2  - Transport
T1  - A multi-objective optimization model for minimizing investment expenses, cycle times and co2 footprint of an automated storage and retrieval systems
EP  - 286
IS  - 2
SP  - 275
VL  - 34
DO  - 10.3846/transport.2019.9686
ER  - 

@article{
author = "Rajković, Miloš and Zrnić, Nenad and Kosanić, Nenad and Borovinšek, Matej and Lerher, Tone",
year = "2019",
abstract = "A new optimization model of Automated Storage and Retrieval Systems (AS/RS) containing three objective and four constraint functions is presented in this paper. Majority of the researchers and publications in material handling field had performed optimization of different decision variables, but with single objective function only. Most common functions are: minimum travel time, maximum throughput capacity, minimum cost, maximum energy efficiency, etc. To perform the simultaneous optimization of objective functions (minimum: "investment expenses", "cycle times", "CO2 footprint") the Non-dominated Sorting Genetic Algorithm II (NSGA II) was used. The NSGA II is a tool for finding the Pareto optimal solutions on the Pareto line. Determining the performance of the system is the main goal of our model. Since AS/RS are not flexible in terms of layout and organizational changes once the system is up and running, the proposed model could be a very helpful tool for the warehouse planners in the early stages of warehouse design.",
publisher = "Vilnius Gediminas Tech Univ, Vilnius",
journal = "Transport",
title = "A multi-objective optimization model for minimizing investment expenses, cycle times and co2 footprint of an automated storage and retrieval systems",
pages = "286-275",
number = "2",
volume = "34",
doi = "10.3846/transport.2019.9686"
}

Rajković, M., Zrnić, N., Kosanić, N., Borovinšek, M.,& Lerher, T.. (2019). A multi-objective optimization model for minimizing investment expenses, cycle times and co2 footprint of an automated storage and retrieval systems. in Transport
Vilnius Gediminas Tech Univ, Vilnius., 34(2), 275-286.
https://doi.org/10.3846/transport.2019.9686

Rajković M, Zrnić N, Kosanić N, Borovinšek M, Lerher T. A multi-objective optimization model for minimizing investment expenses, cycle times and co2 footprint of an automated storage and retrieval systems. in Transport. 2019;34(2):275-286.
doi:10.3846/transport.2019.9686 .

Rajković, Miloš, Zrnić, Nenad, Kosanić, Nenad, Borovinšek, Matej, Lerher, Tone, "A multi-objective optimization model for minimizing investment expenses, cycle times and co2 footprint of an automated storage and retrieval systems" in Transport, 34, no. 2 (2019):275-286,
https://doi.org/10.3846/transport.2019.9686 . .

TY  - CHAP
AU  - Gnjatović, Nebojša
AU  - Bošnjak, Srđan
AU  - Zrnić, Nenad
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3238
AB  - A holistic approach to analyzing the dynamic behaviour of a bucket wheel excavator (BWE) superstructure, which is practically neglected by technical regulations but nowadays widely used during their design and redesign, is presented in the paper. The procedure for determining the potential and kinetic energy and the vector of generalized non-potential forces of the system, leading to the development of a reduced spatial dynamic (RD) model of the BWE with two masts is presented in detail. Direct validation of the established model has been performed by comparing the values obtained for the first ten natural frequencies (NFs) of the finite element (FE) model to those obtained by the RD model. Percent deviations of values of the NFs obtained for the RD model are very low compared to those obtained by the FE model (~1% for three fundamental NFs). Indirect validation of the RD model used in this research i.e. validation of values of the NFs which have been obtained by calculation and the respective modal deflection shapes has been achieved by comparing them to the studies containing the results of numerical-experimental research on the dynamic characteristics of BWEs of the same design concept. The values of NFs are of the same order of magnitude and the corresponding deflection shapes are in full compliance with those of the experimentally-analyzed BWEs.
PB  - Pleiades journals
T2  - Lecture Notes in Mechanical Engineering
T1  - Spatial reduced dynamic model of a bucket wheel excavator with two masts
EP  - 235
SP  - 215
DO  - 10.1007/978-3-030-04975-1_26
ER  - 

@inbook{
author = "Gnjatović, Nebojša and Bošnjak, Srđan and Zrnić, Nenad",
year = "2019",
abstract = "A holistic approach to analyzing the dynamic behaviour of a bucket wheel excavator (BWE) superstructure, which is practically neglected by technical regulations but nowadays widely used during their design and redesign, is presented in the paper. The procedure for determining the potential and kinetic energy and the vector of generalized non-potential forces of the system, leading to the development of a reduced spatial dynamic (RD) model of the BWE with two masts is presented in detail. Direct validation of the established model has been performed by comparing the values obtained for the first ten natural frequencies (NFs) of the finite element (FE) model to those obtained by the RD model. Percent deviations of values of the NFs obtained for the RD model are very low compared to those obtained by the FE model (~1% for three fundamental NFs). Indirect validation of the RD model used in this research i.e. validation of values of the NFs which have been obtained by calculation and the respective modal deflection shapes has been achieved by comparing them to the studies containing the results of numerical-experimental research on the dynamic characteristics of BWEs of the same design concept. The values of NFs are of the same order of magnitude and the corresponding deflection shapes are in full compliance with those of the experimentally-analyzed BWEs.",
publisher = "Pleiades journals",
journal = "Lecture Notes in Mechanical Engineering",
booktitle = "Spatial reduced dynamic model of a bucket wheel excavator with two masts",
pages = "235-215",
doi = "10.1007/978-3-030-04975-1_26"
}

Gnjatović, N., Bošnjak, S.,& Zrnić, N.. (2019). Spatial reduced dynamic model of a bucket wheel excavator with two masts. in Lecture Notes in Mechanical Engineering
Pleiades journals., 215-235.
https://doi.org/10.1007/978-3-030-04975-1_26

Gnjatović N, Bošnjak S, Zrnić N. Spatial reduced dynamic model of a bucket wheel excavator with two masts. in Lecture Notes in Mechanical Engineering. 2019;:215-235.
doi:10.1007/978-3-030-04975-1_26 .

Gnjatović, Nebojša, Bošnjak, Srđan, Zrnić, Nenad, "Spatial reduced dynamic model of a bucket wheel excavator with two masts" in Lecture Notes in Mechanical Engineering (2019):215-235,
https://doi.org/10.1007/978-3-030-04975-1_26 . .