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김효석(Hyosuk Kim),오영민(Youngmin Oh),김학규(Hakkyu Kim) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_2
Among the handling characteristics of the vehicle, Hand-Free Stability is the stability evaluation item in case a driver put a certain steering input during driving then he release the steering wheel. For unstable vehicle, we often test repeatedly with many steering and suspension test sample to improve that tendency. Therefore, in this paper we proposed the CAE method to investigate easily the influence of the steering and suspension design parameters on the Hand-Free Stability. And with the prototype vehicle test, we continued the validity of the CAE results.
김진욱(Jingwook Kim),배경일(Kyeongil Bae),김효석(Hyosuk Kim) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_2
During severe cornering in tight turning radius, the axle may be subjected to lateral force and overturning moment from the tire contact patch, which will bend the disc rotor. The deflection of front axle in lateral direction also do affect the handling precision. Sometimes the caliper pad guide spring contact with the disc rotor, and there occur some noise between them. In order to investigate the contribution of the front axle rigidity such as disc, knuckle, hub and bearing unit we use the CAE analysis and ADAMS/CAR while bench test for axle bending stiffness are also conducted. By considering the analysis results, we can prevent the lack of lateral rigidity in the early design stage.<br/>