Variable stiffness and damping suspension system for train

Shuaishuai Sun, Huaxia Deng, Weihua Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

21 Citations (Scopus)


As the vibration of high speed train becomes fierce when the train runs at high speed, it is crucial to develop a novel suspension system to negotiate train's vibration. This paper presents a novel suspension based on Magnetorheological fluid (MRF) damper and MRF based smart air spring. The MRF damper is used to generate variable damping while the smart air spring is used to generate field-dependent stiffness. In this paper, the two kind smart devices, MRF dampers and smart air spring, are developed firstly. Then the dynamic performances of these two devices are tested by MTS. Based on the testing results, the two devices are equipped to a high speed train which is built in ADAMS. The skyhook control algorithm is employed to control the novel suspension. In order to compare the vibration suppression capability of the novel suspension with other kind suspensions, three other different suspension systems are also considered and simulated in this paper. The other three kind suspensions are variable damping with fixed stiffness suspension, variable stiffness with fixed damping suspension and passive suspension. The simulation results indicate that the variable damping and stiffness suspension suppresses the vibration of high speed train better than the other three suspension systems.

Original languageEnglish
Title of host publicationActive and Passive Smart Structures and Integrated Systems 2014
ISBN (Print)9780819499837
Publication statusPublished - 2014 Jan 1
Externally publishedYes
EventActive and Passive Smart Structures and Integrated Systems 2014 - San Diego, CA, United States
Duration: 2014 Mar 102014 Mar 13

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceActive and Passive Smart Structures and Integrated Systems 2014
Country/TerritoryUnited States
CitySan Diego, CA


  • High speed train
  • MRF based air spring
  • MRF damper
  • Variable stiffness and damping suspension
  • Vibration mitigation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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