Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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The Research for Higher Ride Quality with OPAX and OTPA

변수모델을 사용한 전달경로분석법(OPAX)과 전달률 함수를 사용한 전달경로분석법(OTPA)을 사용한 승차감 향상 연구

  • Shin, Kwangsoo (Department of Mechnical Engineering, Inha University) ;
  • Choi, Sangill (Department of Mechnical Engineering, Inha University) ;
  • Kim, Jongsik (Department of Mechnical Engineering, Inha University) ;
  • Lee, Sangkwon (Department of Mechnical Engineering, Inha University) ;
  • Im, Sebin (NVH Research Team, Hyundai Motor Company)
  • 신광수 (인하대학교 기계공학과) ;
  • 최상일 (인하대학교 기계공학과) ;
  • 김종식 (인하대학교 기계공학과) ;
  • 이상권 (인하대학교 기계공학과) ;
  • 임세빈 (현대자동차 연구소 NVH Research Team)
  • Received : 2014.06.30
  • Accepted : 2014.09.25
  • Published : 2015.01.01
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Abstract

The ride quality has become a key component of not only design but car selling as the technology developed and the requirement of passengers grew up. Thus car industry invests lots of time and cost for the higher ride quality. The evaluation of the ride quality mainly is expressed by subjective element that drivers felt. In this paper, instead of the original transfer path analysis method, relatively new methods such as OPAX(Operational path analysis with eXogeneous inputs) and OTPA(operational transfer path analysis) are used for analyzing the main hindrance element of ride quality. With those new method, contribution rate of all paths that the vibration propagate along analyzed after driving test on the roads having different characteristic. The comprehensive hindrance elements of ride quality are deduced from the contribution rate and the improve experiment by changing one of hindrance elements for higher ride quality.

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References

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