Analytical and numerical investigation of trolleybus vertical dynamics on an artificial test track
Two virtual models of the ŠKODA 21 Tr low-floor trolleybus intended for the investigation of vertical dynamic properties during the simulation of driving on an uneven road surface are presented in the article. In order to solve analytically vertical vibrations, the trolleybus model formed by the sys...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of West Bohemia
2009-12-01
|
| Series: | Applied and Computational Mechanics |
| Subjects: | |
| Online Access: | http://www.kme.zcu.cz/acm/index.php/acm/article/view/72/30 |
| _version_ | 1819127434443751424 |
|---|---|
| author | Polach P. Hajžman M. Soukup J. Volek J. |
| author_facet | Polach P. Hajžman M. Soukup J. Volek J. |
| author_sort | Polach P. |
| collection | DOAJ |
| description | Two virtual models of the ŠKODA 21 Tr low-floor trolleybus intended for the investigation of vertical dynamic properties during the simulation of driving on an uneven road surface are presented in the article. In order to solve analytically vertical vibrations, the trolleybus model formed by the system of four rigid bodies with seven degrees of freedom coupled by spring-damper elements is used. The influence of the asymmetry of a sprung mass, a linear viscous damping and a general kinematic excitation of wheels are incorporated in the model. The analytical approach to solving the ŠKODA 21 Tr low-floor trolleybus model vibrations is a suitable complement of the model based on a numerical solution. Vertical vibrations are numerically solved on the trolleybus multibody model created in the alaska simulation tool. Both virtual trolleybus models are used for the simulations of driving on the track composed of vertical obstacles. Conclusion concerning the effects of the usage of the linear and the nonlinear spring-damper elements characteristics are also given. |
| first_indexed | 2024-12-22T08:11:52Z |
| format | Article |
| id | doaj.art-a4b0559705c5475f955129ec17fe2996 |
| institution | Directory Open Access Journal |
| issn | 1802-680X |
| language | English |
| last_indexed | 2024-12-22T08:11:52Z |
| publishDate | 2009-12-01 |
| publisher | University of West Bohemia |
| record_format | Article |
| series | Applied and Computational Mechanics |
| spelling | doaj.art-a4b0559705c5475f955129ec17fe29962022-12-21T18:33:00ZengUniversity of West BohemiaApplied and Computational Mechanics1802-680X2009-12-0132351362Analytical and numerical investigation of trolleybus vertical dynamics on an artificial test trackPolach P.Hajžman M.Soukup J.Volek J.Two virtual models of the ŠKODA 21 Tr low-floor trolleybus intended for the investigation of vertical dynamic properties during the simulation of driving on an uneven road surface are presented in the article. In order to solve analytically vertical vibrations, the trolleybus model formed by the system of four rigid bodies with seven degrees of freedom coupled by spring-damper elements is used. The influence of the asymmetry of a sprung mass, a linear viscous damping and a general kinematic excitation of wheels are incorporated in the model. The analytical approach to solving the ŠKODA 21 Tr low-floor trolleybus model vibrations is a suitable complement of the model based on a numerical solution. Vertical vibrations are numerically solved on the trolleybus multibody model created in the alaska simulation tool. Both virtual trolleybus models are used for the simulations of driving on the track composed of vertical obstacles. Conclusion concerning the effects of the usage of the linear and the nonlinear spring-damper elements characteristics are also given.http://www.kme.zcu.cz/acm/index.php/acm/article/view/72/30Vehicle dynamicsTrolleybusAnalytical solutionNumerical simulationMultibody model |
| spellingShingle | Polach P. Hajžman M. Soukup J. Volek J. Analytical and numerical investigation of trolleybus vertical dynamics on an artificial test track Applied and Computational Mechanics Vehicle dynamics Trolleybus Analytical solution Numerical simulation Multibody model |
| title | Analytical and numerical investigation of trolleybus vertical dynamics on an artificial test track |
| title_full | Analytical and numerical investigation of trolleybus vertical dynamics on an artificial test track |
| title_fullStr | Analytical and numerical investigation of trolleybus vertical dynamics on an artificial test track |
| title_full_unstemmed | Analytical and numerical investigation of trolleybus vertical dynamics on an artificial test track |
| title_short | Analytical and numerical investigation of trolleybus vertical dynamics on an artificial test track |
| title_sort | analytical and numerical investigation of trolleybus vertical dynamics on an artificial test track |
| topic | Vehicle dynamics Trolleybus Analytical solution Numerical simulation Multibody model |
| url | http://www.kme.zcu.cz/acm/index.php/acm/article/view/72/30 |
| work_keys_str_mv | AT polachp analyticalandnumericalinvestigationoftrolleybusverticaldynamicsonanartificialtesttrack AT hajzmanm analyticalandnumericalinvestigationoftrolleybusverticaldynamicsonanartificialtesttrack AT soukupj analyticalandnumericalinvestigationoftrolleybusverticaldynamicsonanartificialtesttrack AT volekj analyticalandnumericalinvestigationoftrolleybusverticaldynamicsonanartificialtesttrack |