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소형차량에서 LCA Bush Stiffness 변화에 따른 차량의 운동성능 및 승차감 고찰
서정원(Jungwon Seo),전영운(Youngwoon Chun),이철훈(Chulhoon Lee),원영섭(Youngsub Won) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
This paper aims to explain both ride trend and the effect of elastomeric bushing stiffness of lower control ann to be applied in a small car. Even though many car companies apply hydraulic lower control arm bush as an enabler for better ride comfort over the mid size car., most of small car is fitted with elastomertic bush of lower control arm. It is very difficult to fulfill the good ride and handling performance with elastomeric lower control arm bushing of a small car. So it is necessary to understand relationship between vehicle performance and bush stiffness change of lower control arm. All the results are shown in this paper not only by subjective evaluation but also objective measurement. Also this paper explains which is proper rear bush stiffness of lower control with minimize degradation on Vehicle Dynamics area in the small car. Vehicle performances are also affected both suspension type and characteristics of many suspension components. But those factors are not considered in the paper in order to focus on rear bush stiffness of lower control arm.