TY  - JOUR
AU  - Bugarić, Uglješa
AU  - Tanasijević, Miloš
AU  - Đenadić, Stevan
AU  - Ignjatović, Dragan
AU  - Janković, Ivan
PY  - 2022
UR  - https://www.mdpi.com/journal/machines
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5779
AB  - This paper presents the model for the identification of reference points on the lifetime
curve of engineering systems. This curve commonly represents the increase and decline of failure
in relation to time. A direct correlation between failure rate and costs is assumed in this paper,
therefore, statistical and empirical analysis of costs provided reference points. This approach is
used for positioning stages of the engineering system’s lifetime with a minimal number of failures
and costs, regardless of whether these are acceptable or not. The following three stages are usually
identified: the beginning, the stationary part and the end of life. The boundaries between them are
recognized on the basis of minimum total lifetime costs and on economic lifetime costs. Model is
tested on the dozers, machines frequently used in the mining industry for the earthmoving operations,
and which are characterized by high operating and maintenance costs.
PB  - MDPI
T2  - Machines
T1  - Development of the Cost-Based Model for Monitoring the Lifetime of the Earth Moving Machines
IS  - 11
SP  - 995
VL  - 10
DO  - 10.3390/machines10110995
ER  - 

@article{
author = "Bugarić, Uglješa and Tanasijević, Miloš and Đenadić, Stevan and Ignjatović, Dragan and Janković, Ivan",
year = "2022",
abstract = "This paper presents the model for the identification of reference points on the lifetime
curve of engineering systems. This curve commonly represents the increase and decline of failure
in relation to time. A direct correlation between failure rate and costs is assumed in this paper,
therefore, statistical and empirical analysis of costs provided reference points. This approach is
used for positioning stages of the engineering system’s lifetime with a minimal number of failures
and costs, regardless of whether these are acceptable or not. The following three stages are usually
identified: the beginning, the stationary part and the end of life. The boundaries between them are
recognized on the basis of minimum total lifetime costs and on economic lifetime costs. Model is
tested on the dozers, machines frequently used in the mining industry for the earthmoving operations,
and which are characterized by high operating and maintenance costs.",
publisher = "MDPI",
journal = "Machines",
title = "Development of the Cost-Based Model for Monitoring the Lifetime of the Earth Moving Machines",
number = "11",
pages = "995",
volume = "10",
doi = "10.3390/machines10110995"
}

Bugarić, U., Tanasijević, M., Đenadić, S., Ignjatović, D.,& Janković, I.. (2022). Development of the Cost-Based Model for Monitoring the Lifetime of the Earth Moving Machines. in Machines
MDPI., 10(11), 995.
https://doi.org/10.3390/machines10110995

Bugarić U, Tanasijević M, Đenadić S, Ignjatović D, Janković I. Development of the Cost-Based Model for Monitoring the Lifetime of the Earth Moving Machines. in Machines. 2022;10(11):995.
doi:10.3390/machines10110995 .

Bugarić, Uglješa, Tanasijević, Miloš, Đenadić, Stevan, Ignjatović, Dragan, Janković, Ivan, "Development of the Cost-Based Model for Monitoring the Lifetime of the Earth Moving Machines" in Machines, 10, no. 11 (2022):995,
https://doi.org/10.3390/machines10110995 . .

TY  - JOUR
AU  - Djenadić, Stevan
AU  - Ignjatović, Dragan
AU  - Tanasijević, Miloš
AU  - Bugarić, Uglješa
AU  - Janković, Ivan
AU  - Subaranović, Tomislav
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3010
AB  - Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points' analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the coefficient of time use of the machine. This approach is not good enough because it does not go into the structure of the availability itself and requires a high level of IT support in system monitoring. In this sense, this paper will use the fuzzy theory and the corresponding analytic hierarchy process (AHP) multi-criteria analysis to present a conceptual and mathematical model for the assessment of availability based on expert judgment. The model will be shown in the case study (on the example) of bulldozers working in the open-pit lignite mine.
PB  - MDPI, Basel
T2  - Energies
T1  - Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine
IS  - 21
VL  - 12
DO  - 10.3390/en12214044
ER  - 

@article{
author = "Djenadić, Stevan and Ignjatović, Dragan and Tanasijević, Miloš and Bugarić, Uglješa and Janković, Ivan and Subaranović, Tomislav",
year = "2019",
abstract = "Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points' analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the coefficient of time use of the machine. This approach is not good enough because it does not go into the structure of the availability itself and requires a high level of IT support in system monitoring. In this sense, this paper will use the fuzzy theory and the corresponding analytic hierarchy process (AHP) multi-criteria analysis to present a conceptual and mathematical model for the assessment of availability based on expert judgment. The model will be shown in the case study (on the example) of bulldozers working in the open-pit lignite mine.",
publisher = "MDPI, Basel",
journal = "Energies",
title = "Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine",
number = "21",
volume = "12",
doi = "10.3390/en12214044"
}

Djenadić, S., Ignjatović, D., Tanasijević, M., Bugarić, U., Janković, I.,& Subaranović, T.. (2019). Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine. in Energies
MDPI, Basel., 12(21).
https://doi.org/10.3390/en12214044

Djenadić S, Ignjatović D, Tanasijević M, Bugarić U, Janković I, Subaranović T. Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine. in Energies. 2019;12(21).
doi:10.3390/en12214044 .

Djenadić, Stevan, Ignjatović, Dragan, Tanasijević, Miloš, Bugarić, Uglješa, Janković, Ivan, Subaranović, Tomislav, "Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine" in Energies, 12, no. 21 (2019),
https://doi.org/10.3390/en12214044 . .