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Research on the evolution law of dynamic performance of CR400BF EMU train based on stochastic dynamics simulation
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Di Cheng, Yuqing Wen, Zhiqiang Guo, Xiaoyi Hu, Pengsong Wang, Zhikun Song
Railway Sciences | 2024, 3(2) : 143 - 155
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Railway Sciences | 2024, 3(2): 143-155
• Research paper •
Research on the evolution law of dynamic performance of CR400BF EMU train based on stochastic dynamics simulation
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Di Cheng, Yuqing Wen, Zhiqiang Guo, Xiaoyi Hu, Pengsong Wang, Zhikun Song
Affiliations
  • Railway Science and Technology Research and Development Center, China Academy of Railway Sciences Corporation Limited, Beijing, China
  • School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, China
  • Railway Science and Technology Research and Development Center, China Academy of Railway Sciences Corporation Limited, Beijing, China
  • School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, China
Published: 2024-04-10 doi: 10.1108/RS-01-2024-0004
Outline
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Purpose

This paper aims to obtain the evolution law of dynamic performance of CR400BF electric multiple unit (EMU).

Design/methodology/approach

Using the dynamic simulation based on field test, stiffness of rotary arm nodes and damping coefficient of anti-hunting dampers were tested. Stiffness, damping coefficient, friction coefficient, track gauge were taken as random variables, the stochastic dynamics simulation method was constructed and applied to research the evolution law with running mileage of dynamic index of CR400BF EMU.

Findings

The results showed that stiffness and damping coefficient subjected to normal distribution, the mean and variance were computed and the evolution law of stiffness and damping coefficient with running mileage was obtained.

Originality/value

Firstly, based on the field test we found that stiffness of rotary arm nodes and damping coefficient of anti-hunting dampers subjected to normal distribution, and the evolution law of stiffness and damping coefficient with running mileage was proposed. Secondly stiffness, damping coefficient, friction coefficient, track gauge were taken as random variables, the stochastic dynamics simulation method was constructed and applied to the research to the evolution law with running mileage of dynamic index of CR400BF EMU.

Vehicle system dynamics  /  Stiffness of rotary arm nodes  /  Anti-snaking damper damping  /  Random variable
Di Cheng, Yuqing Wen, Zhiqiang Guo, Xiaoyi Hu, Pengsong Wang, Zhikun Song. Research on the evolution law of dynamic performance of CR400BF EMU train based on stochastic dynamics simulation[J]. Railway Sciences, 2024 , 3 (2) : 143 -155 . DOI: 10.1108/RS-01-2024-0004
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Funding
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  • Science and Technology Development Project Agreement/Contract, China National Railway Group Co., Ltd.(N2023J012)
  • China Academy of Railway Sciences Corporation Limited(2021YJ208)
Appendix
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Year 2024 volume 3 Issue 2
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Article Info
doi: 10.1108/RS-01-2024-0004
  • Receive Date：2024-01-18
  • Online Date：2026-06-11
  • Published：2024-04-10
Article Data
Affiliations
History
  • Received：2024-01-18
  • Revised：2024-01-23
  • Accepted：2024-02-05
Funding
Science and Technology Development Project Agreement/Contract, China National Railway Group Co., Ltd.(N2023J012)
China Academy of Railway Sciences Corporation Limited(2021YJ208)
Affiliations
    Railway Science and Technology Research and Development Center, China Academy of Railway Sciences Corporation Limited, Beijing, China
    School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, China
    Railway Science and Technology Research and Development Center, China Academy of Railway Sciences Corporation Limited, Beijing, China
    School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, China

Corresponding:

Xiaoyi Hu can be contacted at:
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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