TY  - JOUR
AU  - Petrović, Dragan V.
AU  - Cerović, Vera
AU  - Radojević, Rade L.
AU  - Mileusnić, Zoran I.
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3619
AB  - This paper presents an analytical algorithm with appropriate software specified for the approximation of the allowed critical slope of the solid flat terrain that guarantees static and/or dynamic stability of the specified self-propelled agricultural machines and their aggregates. This algorithm assumes machine as a rigid body, having 3 or 4 contact points (defined by wheels or crawlers), under uniform motion at different constant velocities and radii of curvature trajectories. Using this algorithm, based on the principles of theoretical mechanics combined with 3D analytical geometry, the computer program SSPM (stability of the self-propelled agricultural machines) has been coded. This software is intended to facilitate the analysis, comparison and optimization of different configurations of self-propelled agricultural machines in operation on horizontal and sloped flat terrains at constant velocities and radii of trajectory with respect to their static and dynamic stability. It calculates critical pitch and roll angles of the selfpropelled machine and the maximum allowed slope of the flat terrain under the given conditions. The algorithm and the appropriate SSPM software were experimentally verified using the platform and low-scale tractor model. Average difference between calculated and experimental critical values of roll and pitch angles were about 4 degrees
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Journal of Terramechanics
T1  - An approach to characterization of the agricultural self-propelled machines stability
EP  - 63
SP  - 51
VL  - 93
DO  - 10.1016/j.jterra.2020.11.001
ER  - 

@article{
author = "Petrović, Dragan V. and Cerović, Vera and Radojević, Rade L. and Mileusnić, Zoran I.",
year = "2021",
abstract = "This paper presents an analytical algorithm with appropriate software specified for the approximation of the allowed critical slope of the solid flat terrain that guarantees static and/or dynamic stability of the specified self-propelled agricultural machines and their aggregates. This algorithm assumes machine as a rigid body, having 3 or 4 contact points (defined by wheels or crawlers), under uniform motion at different constant velocities and radii of curvature trajectories. Using this algorithm, based on the principles of theoretical mechanics combined with 3D analytical geometry, the computer program SSPM (stability of the self-propelled agricultural machines) has been coded. This software is intended to facilitate the analysis, comparison and optimization of different configurations of self-propelled agricultural machines in operation on horizontal and sloped flat terrains at constant velocities and radii of trajectory with respect to their static and dynamic stability. It calculates critical pitch and roll angles of the selfpropelled machine and the maximum allowed slope of the flat terrain under the given conditions. The algorithm and the appropriate SSPM software were experimentally verified using the platform and low-scale tractor model. Average difference between calculated and experimental critical values of roll and pitch angles were about 4 degrees",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Journal of Terramechanics",
title = "An approach to characterization of the agricultural self-propelled machines stability",
pages = "63-51",
volume = "93",
doi = "10.1016/j.jterra.2020.11.001"
}

Petrović, D. V., Cerović, V., Radojević, R. L.,& Mileusnić, Z. I.. (2021). An approach to characterization of the agricultural self-propelled machines stability. in Journal of Terramechanics
Pergamon-Elsevier Science Ltd, Oxford., 93, 51-63.
https://doi.org/10.1016/j.jterra.2020.11.001

Petrović DV, Cerović V, Radojević RL, Mileusnić ZI. An approach to characterization of the agricultural self-propelled machines stability. in Journal of Terramechanics. 2021;93:51-63.
doi:10.1016/j.jterra.2020.11.001 .

Petrović, Dragan V., Cerović, Vera, Radojević, Rade L., Mileusnić, Zoran I., "An approach to characterization of the agricultural self-propelled machines stability" in Journal of Terramechanics, 93 (2021):51-63,
https://doi.org/10.1016/j.jterra.2020.11.001 . .

TY  - JOUR
AU  - Bugarić, Uglješa
AU  - Petrović, Dušan
AU  - Jeli, Zorana
AU  - Petrović, Dragan V.
PY  - 2012
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1517
AB  - This paper analyses the capacity of a bulk cargo unloading river terminal, i.e. the existing terminal configuration with two unloading devices (operation without a help strategy and under a complete help strategy between unloading devices) and the predicted future terminal configuration with three unloading devices operating under a partial help strategy. The optimization procedure to determine unloading terminal optimal utilization, for each terminal configuration and operation strategy (existing and future situation) is also shown, due to the fact that ports (terminals) operation under an optimal capacity provides prompt accommodation of vessels with the minimum port waiting time and maximum use of berth facilities. For the purpose of a comprehensive analysis, three different river terminal simulation models have been developed due to the number of unloading devices and their operation strategy. Some of the obtained results have been applied and verified on the existing system.
PB  - Sage Publications Ltd, London
T2  - Simulation-Transactions of The Society For Modeling and Simulation International
T1  - Optimal utilization of the terminal for bulk cargo unloading
EP  - 1521
IS  - 12
SP  - 1508
VL  - 88
DO  - 10.1177/0037549712459773
ER  - 

@article{
author = "Bugarić, Uglješa and Petrović, Dušan and Jeli, Zorana and Petrović, Dragan V.",
year = "2012",
abstract = "This paper analyses the capacity of a bulk cargo unloading river terminal, i.e. the existing terminal configuration with two unloading devices (operation without a help strategy and under a complete help strategy between unloading devices) and the predicted future terminal configuration with three unloading devices operating under a partial help strategy. The optimization procedure to determine unloading terminal optimal utilization, for each terminal configuration and operation strategy (existing and future situation) is also shown, due to the fact that ports (terminals) operation under an optimal capacity provides prompt accommodation of vessels with the minimum port waiting time and maximum use of berth facilities. For the purpose of a comprehensive analysis, three different river terminal simulation models have been developed due to the number of unloading devices and their operation strategy. Some of the obtained results have been applied and verified on the existing system.",
publisher = "Sage Publications Ltd, London",
journal = "Simulation-Transactions of The Society For Modeling and Simulation International",
title = "Optimal utilization of the terminal for bulk cargo unloading",
pages = "1521-1508",
number = "12",
volume = "88",
doi = "10.1177/0037549712459773"
}

Bugarić, U., Petrović, D., Jeli, Z.,& Petrović, D. V.. (2012). Optimal utilization of the terminal for bulk cargo unloading. in Simulation-Transactions of The Society For Modeling and Simulation International
Sage Publications Ltd, London., 88(12), 1508-1521.
https://doi.org/10.1177/0037549712459773

Bugarić U, Petrović D, Jeli Z, Petrović DV. Optimal utilization of the terminal for bulk cargo unloading. in Simulation-Transactions of The Society For Modeling and Simulation International. 2012;88(12):1508-1521.
doi:10.1177/0037549712459773 .

Bugarić, Uglješa, Petrović, Dušan, Jeli, Zorana, Petrović, Dragan V., "Optimal utilization of the terminal for bulk cargo unloading" in Simulation-Transactions of The Society For Modeling and Simulation International, 88, no. 12 (2012):1508-1521,
https://doi.org/10.1177/0037549712459773 . .

TY  - JOUR
AU  - Petrović, Dragan V.
AU  - Mitrović, Časlav
AU  - Trišović, Nataša
AU  - Golubović, Zorana
PY  - 2011
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1230
AB  - When filtering products with a high level of non-soluble solids and containing filtration-inhibiting substances, a variety of different filter aids can be used. Among others, kieselguhr and perlite are possible materials for this purpose. The selection of the granulation that should be applied depends on the filtered liquid medium and the desired retention level. While perlite is most commonly used for rough filtration, kieselguhr is also suitable for more subtile filtration. In the paper, particle size distributions of three kieselguhr granulations and a perlite granulation are analysed. Particle sizes are measured by the morphometric method commonly used in the microbiology. Basic statistic parameters are calculated for all considered samples and compared. The applicability of hyperbolic and log-hyperbolic functions, in describing the particles size distributions of these granulations is verified. Depending on the imposed filtration requirements, this approach enables simple modelling and composition of a wide variety of different granulations characterised by appropriate particle size distributions from a few available granulations.
PB  - Assoc Mechanical Engineers Technicians Slovenia, Ljubljana
T2  - Strojniski Vestnik-Journal of Mechanical Engineering
T1  - On the Particles Size Distributions of Diatomaceous Earth and Perlite Granulations
EP  - 850
IS  - 11
SP  - 843
VL  - 57
DO  - 10.5545/sv-jme.2010.050
ER  - 

@article{
author = "Petrović, Dragan V. and Mitrović, Časlav and Trišović, Nataša and Golubović, Zorana",
year = "2011",
abstract = "When filtering products with a high level of non-soluble solids and containing filtration-inhibiting substances, a variety of different filter aids can be used. Among others, kieselguhr and perlite are possible materials for this purpose. The selection of the granulation that should be applied depends on the filtered liquid medium and the desired retention level. While perlite is most commonly used for rough filtration, kieselguhr is also suitable for more subtile filtration. In the paper, particle size distributions of three kieselguhr granulations and a perlite granulation are analysed. Particle sizes are measured by the morphometric method commonly used in the microbiology. Basic statistic parameters are calculated for all considered samples and compared. The applicability of hyperbolic and log-hyperbolic functions, in describing the particles size distributions of these granulations is verified. Depending on the imposed filtration requirements, this approach enables simple modelling and composition of a wide variety of different granulations characterised by appropriate particle size distributions from a few available granulations.",
publisher = "Assoc Mechanical Engineers Technicians Slovenia, Ljubljana",
journal = "Strojniski Vestnik-Journal of Mechanical Engineering",
title = "On the Particles Size Distributions of Diatomaceous Earth and Perlite Granulations",
pages = "850-843",
number = "11",
volume = "57",
doi = "10.5545/sv-jme.2010.050"
}

Petrović, D. V., Mitrović, Č., Trišović, N.,& Golubović, Z.. (2011). On the Particles Size Distributions of Diatomaceous Earth and Perlite Granulations. in Strojniski Vestnik-Journal of Mechanical Engineering
Assoc Mechanical Engineers Technicians Slovenia, Ljubljana., 57(11), 843-850.
https://doi.org/10.5545/sv-jme.2010.050

Petrović DV, Mitrović Č, Trišović N, Golubović Z. On the Particles Size Distributions of Diatomaceous Earth and Perlite Granulations. in Strojniski Vestnik-Journal of Mechanical Engineering. 2011;57(11):843-850.
doi:10.5545/sv-jme.2010.050 .

Petrović, Dragan V., Mitrović, Časlav, Trišović, Nataša, Golubović, Zorana, "On the Particles Size Distributions of Diatomaceous Earth and Perlite Granulations" in Strojniski Vestnik-Journal of Mechanical Engineering, 57, no. 11 (2011):843-850,
https://doi.org/10.5545/sv-jme.2010.050 . .