Research on Response Postures of Subway Train in Straight Line Collision
A six-car subway train finite element model was developed to investigate possible response postures under impact accidents. Considering the plastic deformation of carriages and weak points of the train front, the simulation included two conditions: train–train collision and collision with an obstacl...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/1/252 |
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| author | Shuhao Liu Yiqun Yu Yi Li Rongqiang Liu Rong Zhang |
| author_facet | Shuhao Liu Yiqun Yu Yi Li Rongqiang Liu Rong Zhang |
| author_sort | Shuhao Liu |
| collection | DOAJ |
| description | A six-car subway train finite element model was developed to investigate possible response postures under impact accidents. Considering the plastic deformation of carriages and weak points of the train front, the simulation included two conditions: train–train collision and collision with an obstacle. Comprehensive response postures were obtained. A one-dimensional dynamic theory model was established to verify the rationality of the FEM model. The influence of impact speed, impact angle, and impact position on the energy consumption and response postures were discussed. The results show that one accident condition is accompanied by a variety of response postures. The main factors of climbing are asynchronism of yaw and pitch motions of adjacent carriages and plastic deformation of carriage ends, which leads to vertical arch. In oblique and front-side collision, the lateral force and the deviation of train front cause rapid derailment, and large lateral movement of the front and lateral buckling happen subsequently. |
| format | Article |
| id | doaj-art-c0b730ad84304e71b045a3a40e3ef226 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-c0b730ad84304e71b045a3a40e3ef2262025-01-10T13:14:56ZengMDPI AGApplied Sciences2076-34172024-12-0115125210.3390/app15010252Research on Response Postures of Subway Train in Straight Line CollisionShuhao Liu0Yiqun Yu1Yi Li2Rongqiang Liu3Rong Zhang4State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin 150001, ChinaKey Laboratory of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin 150090, ChinaKey Laboratory of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin 150090, ChinaState Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin 150001, ChinaKey Laboratory of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin 150090, ChinaA six-car subway train finite element model was developed to investigate possible response postures under impact accidents. Considering the plastic deformation of carriages and weak points of the train front, the simulation included two conditions: train–train collision and collision with an obstacle. Comprehensive response postures were obtained. A one-dimensional dynamic theory model was established to verify the rationality of the FEM model. The influence of impact speed, impact angle, and impact position on the energy consumption and response postures were discussed. The results show that one accident condition is accompanied by a variety of response postures. The main factors of climbing are asynchronism of yaw and pitch motions of adjacent carriages and plastic deformation of carriage ends, which leads to vertical arch. In oblique and front-side collision, the lateral force and the deviation of train front cause rapid derailment, and large lateral movement of the front and lateral buckling happen subsequently.https://www.mdpi.com/2076-3417/15/1/252subway train collisionelastoplastic modelone-dimensional dynamic modeltrain–obstacleenergy absorptionresponse postures |
| spellingShingle | Shuhao Liu Yiqun Yu Yi Li Rongqiang Liu Rong Zhang Research on Response Postures of Subway Train in Straight Line Collision Applied Sciences subway train collision elastoplastic model one-dimensional dynamic model train–obstacle energy absorption response postures |
| title | Research on Response Postures of Subway Train in Straight Line Collision |
| title_full | Research on Response Postures of Subway Train in Straight Line Collision |
| title_fullStr | Research on Response Postures of Subway Train in Straight Line Collision |
| title_full_unstemmed | Research on Response Postures of Subway Train in Straight Line Collision |
| title_short | Research on Response Postures of Subway Train in Straight Line Collision |
| title_sort | research on response postures of subway train in straight line collision |
| topic | subway train collision elastoplastic model one-dimensional dynamic model train–obstacle energy absorption response postures |
| url | https://www.mdpi.com/2076-3417/15/1/252 |
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