Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Performance Analysis with Different Tire Pressure of Quarter-vehicle System Featuring MR Damper

MR 댐퍼를 장착한 1/4차량의 타이어 공기압에 따른 성능분석

  • 성금길 (영남이공대학 기계자동차학부) ;
  • 이호근 (대덕대학 자동차학부) ;
  • 최승복 (인하대학교 기계공학부) ;
  • 박민규 (영남이공대학 기계자동차학부) ;
  • 박명규 (영남이공대학 기계자동차학부)
  • Published : 2010.03.20
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Abstract

This paper presents performance analysis of a quarter-vehicle magneto-rheological(MR) suspension system with respect to different tire pressure. As a first step, MR damper is designed and manufactured based on the optimized damping force levels and mechanical dimensions required for a commercial mid-sized passenger vehicle. After experimentally evaluating dynamic characteristics of the manufactured MR damper, the quarter-vehicle MR suspension system consisting of sprung mass, spring, tire and the MR damper is constructed in order to investigate the ride comfort. After deriving the equations of the motion for the proposed quarter-vehicle MR suspension system, vertical tire stiffness with respect to different tire pressure is experimentally identified. The skyhook controller is then implemented for the realization of quarter-vehicle MR suspension system. Ride comfort characteristics such as vertical acceleration RMS and weighted RMS of sprung mass are evaluated under various road conditions.

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References

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