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Parameter optimization of multi-suspended equipment to suppress carbody vibration of high-speed railway vehicles: a comparative study

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  • Qunsheng Wang
  • Jing Zeng
  • Huailong Shi
  • Xuesong Jiang

Abstract

Parameter optimization of equipment suspended under the carbody underframe is one of the important measures to suppress carbody vibration of high-speed trains. Previous work focused on using one equipment as a dynamic vibration absorber to control carbody vibration, overlooking the coupling effects of multiple equipments and their vibration tolerance. To address this, a comprehensive study involving multi-objective and multi-parameter optimization to enhance both carbody and equipment vibration performance is proposed. First, a theoretical model with one equipment is established to derive optimal parameters, and a simulation model with multi-suspended equipment is built to conduct optimize calculations with an improved niche genetic algorithm (INGA). Afterwards, a comparative study on carbody and equipment vibration performance is analysed based on the optimal parameters, proving that the optimal method with INGA is more effective in improving vehicle performance. Finally, the method is applied to a newly designed vehicle, and the performance is validated on a rig, providing technical support for the design of high-speed vehicles.

Suggested Citation

  • Qunsheng Wang & Jing Zeng & Huailong Shi & Xuesong Jiang, 2024. "Parameter optimization of multi-suspended equipment to suppress carbody vibration of high-speed railway vehicles: a comparative study," International Journal of Rail Transportation, Taylor & Francis Journals, vol. 12(6), pages 1000-1019, November.
  • Handle: RePEc:taf:tjrtxx:v:12:y:2024:i:6:p:1000-1019
    DOI: 10.1080/23248378.2023.2291202
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