An approach to characterization of the agricultural self-propelled machines stability
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 calcul...ates 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
Keywords:
Tractor / Stable motion / SSPM / Spatial analytical geometry / MechanicsSource:
Journal of Terramechanics, 2021, 93, 51-63Publisher:
- Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
- The Improvement and Preservation of Biotechnology Procedures for Rational Energy Use and Improvement of Agricultural Production Quality (RS-MESTD-Technological Development (TD or TR)-31051)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200116 (University of Belgrade, Faculty of Agriculture) (RS-MESTD-inst-2020-200116)
DOI: 10.1016/j.jterra.2020.11.001
ISSN: 0022-4898
WoS: 000596712200005
Scopus: 2-s2.0-85096693683
Collections
Institution/Community
Mašinski fakultetTY - 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 . .