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Friction and vibration behaviours of high-speed train brake system excited by wheel flats

Author

Listed:
  • Zhiwei Wang
  • Liang Zhang
  • Zhiying Ren
  • Jiliang Mo
  • Linchuan Yang
  • Kaiyun Wang

Abstract

To study the interface friction and vibration behaviours of brake systems with wheel flat, a rigid-flexible vehicle dynamics model and a finite element model of brake system are developed. These two models are validated using experimental test data. Additionally, an analysis formula of brake system excited by wheel flat is proposed to reveal the tribological behaviours. The results indicate that the wheel flat directly induces the elastic vibration of brake disc and further affects the disc contact, resulting in a significant increase in the contact force, contact stress, friction force and vibration acceleration between the brake interfaces. Furthermore, the proposed model can be used to investigate the related tribological behaviour of brake systems under other complex wheel-rail excitations.

Suggested Citation

  • Zhiwei Wang & Liang Zhang & Zhiying Ren & Jiliang Mo & Linchuan Yang & Kaiyun Wang, 2024. "Friction and vibration behaviours of high-speed train brake system excited by wheel flats," International Journal of Rail Transportation, Taylor & Francis Journals, vol. 12(3), pages 458-475, May.
    • Handle: RePEc:taf:tjrtxx:v:12:y:2024:i:3:p:458-475
    DOI: 10.1080/23248378.2023.2181879
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