Theoretical and experimental investigation of a stiffness-controllable suspension for railway vehicles to avoid resonance

Tianhe Jin, Zhiming Liu, Shuaishuai Sun, Zunsong Ren, Lei Deng, Donghong Ning, Haiping Du, Weihua Li

Research output: Contribution to journalArticle

Abstract

In this paper, a semi-active suspension system, composed of variable stiffness (VS) magnetorheological (MR) dampers, was developed and investigated theoretically and experimentally, aiming to improve the ride comfort of high-speed train by avoiding the train body resonance. Firstly, a full-scaled high-speed train model with 17-degree-of-freedom (17-DOF), whose secondary lateral suspension was installed with two VS-MR dampers, was established. And the numerical evaluation on the performance of the VS suspension was conducted. Secondly, a scaled high-speed railway vehicle and the VS suspension were designed and manufactured for experimental evaluation on a vibration generating platform under different excitations. The experimental results are consistent with the numerical evaluation results, which show that the VS suspension can effectively avoid the train's resonance in lateral direction and greatly improve the ride comfort compared with the traditional suspension system.

Original languageEnglish
Article number105901
JournalInternational Journal of Mechanical Sciences
Volume187
DOIs
Publication statusPublished - 2020 Dec 1

Keywords

  • High-speed railway vehicle
  • Magnetorheological
  • Semi-active suspension
  • Variable stiffness (VS)
  • Vibration control

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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