Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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H∞ Control of Secondary Suspension in Railway Vehicles Equipped with a MR Damper

MR 댐퍼가 적용된 철도차량 이차현가장치의 H∞ 제어

  • Shin, Yu Jeong (High-Speed Railroad System Research Center, Korea Railroad Research Institute) ;
  • You, Won Hee (High-Speed Railroad System Research Center, Korea Railroad Research Institute) ;
  • Hur, Hyun Moo (High-Speed Railroad System Research Center, Korea Railroad Research Institute) ;
  • Park, Joon Hyuk (High-Speed Railroad System Research Center, Korea Railroad Research Institute)
  • 신유정 (한국철도기술연구원 고속철도연구본부) ;
  • 유원희 (한국철도기술연구원 고속철도연구본부) ;
  • 허현무 (한국철도기술연구원 고속철도연구본부) ;
  • 박준혁 (한국철도기술연구원 고속철도연구본부)
  • Received : 2013.05.03
  • Accepted : 2013.09.05
  • Published : 2013.10.01
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Abstract

In general, lateral ride comfort of railway vehicle is mainly influenced by a secondary suspension placed between the bogie and carbody. Higher operating speeds of train results in increased vibration of carbody, which has a negative impact related to the ride comfort. To solve this problem, researches to replace the conventional passive suspension with (semi)active technology in the secondary suspension of a railway vehicle have been carried out. The semi-active suspension using the magneto-rheological damper is relatively simpler system and has advantage in maintenance compared to the hydraulic type semi-active damper. This study was performed to reduce lateral vibration acceleration of carbody related to ride comfort of railway vehicles with a semi-active suspension system. The numerical analysis was conducted by replacing passive lateral damper with semi-active MR damper, and robust control with the MR damper was applied to the 1/5 scaled railway vehicle model.

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References

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