Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws
This study aimed to investigate energy dissipation in train collisions. A 1/8 scaled train model, about one-dimensional in longitudinal direction, was used to carry out a scaled train collision test. Corresponding multibody dynamic simulations were conducted using traditional and improved method mod...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/3084052 |
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| _version_ | 1832566907545321472 |
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| author | Heng Shao Ping Xu Shuguang Yao Yong Peng Rui Li Shizhong Zhao |
| author_facet | Heng Shao Ping Xu Shuguang Yao Yong Peng Rui Li Shizhong Zhao |
| author_sort | Heng Shao |
| collection | DOAJ |
| description | This study aimed to investigate energy dissipation in train collisions. A 1/8 scaled train model, about one-dimensional in longitudinal direction, was used to carry out a scaled train collision test. Corresponding multibody dynamic simulations were conducted using traditional and improved method model (IMM) in ADAMS. In IMM, the connection between two adjacent cars was expressed by a nonlinear spring and energy absorbing structures were equivalently represented by separate forces, instead of one force. IMM was able to simulate the motion of each car and displayed the deformation of structures at both ends of the cars. IMM showed larger deformations and energy absorption of structures in moving cars than those in stationary cars. Moreover, the asymmetry in deformation proportion in main energy absorbing structures decreased with increasing collision speed. The asymmetry decreased from 11.69% to 3.60% when the collision speed increased from 10 km/h to 36 km/h. |
| format | Article |
| id | doaj-art-933f00b0db1840a3b0be085b13cd783c |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-933f00b0db1840a3b0be085b13cd783c2025-02-03T01:02:54ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/30840523084052Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling LawsHeng Shao0Ping Xu1Shuguang Yao2Yong Peng3Rui Li4Shizhong Zhao5Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, Hunan 410075, ChinaKey Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, Hunan 410075, ChinaKey Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, Hunan 410075, ChinaKey Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, Hunan 410075, ChinaKey Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, Hunan 410075, ChinaChina South Locomotive and Rolling Stock Industry, Sifang Locomotive and Rolling Stock Co., Ltd., Qingdao, Shandong 266111, ChinaThis study aimed to investigate energy dissipation in train collisions. A 1/8 scaled train model, about one-dimensional in longitudinal direction, was used to carry out a scaled train collision test. Corresponding multibody dynamic simulations were conducted using traditional and improved method model (IMM) in ADAMS. In IMM, the connection between two adjacent cars was expressed by a nonlinear spring and energy absorbing structures were equivalently represented by separate forces, instead of one force. IMM was able to simulate the motion of each car and displayed the deformation of structures at both ends of the cars. IMM showed larger deformations and energy absorption of structures in moving cars than those in stationary cars. Moreover, the asymmetry in deformation proportion in main energy absorbing structures decreased with increasing collision speed. The asymmetry decreased from 11.69% to 3.60% when the collision speed increased from 10 km/h to 36 km/h.http://dx.doi.org/10.1155/2016/3084052 |
| spellingShingle | Heng Shao Ping Xu Shuguang Yao Yong Peng Rui Li Shizhong Zhao Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws Shock and Vibration |
| title | Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws |
| title_full | Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws |
| title_fullStr | Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws |
| title_full_unstemmed | Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws |
| title_short | Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws |
| title_sort | improved multibody dynamics for investigating energy dissipation in train collisions based on scaling laws |
| url | http://dx.doi.org/10.1155/2016/3084052 |
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