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타이어의 그루브 폭에 따른 젖은 노면에서의 제동특성 연구
손정삼(Jungsam son),이홍우(Hongwoo Lee),조진래(Jinrae Cho),김기전(Gijeon Kim),우종식(Jongshik Woo) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
When a vehicle is running rapidly on the wet-road, the tire contact force decreases because of the occurrence of thin water film between road and tire. In the severe case, tire may float over the road slide on the road. this phenomenon is called "hydroplaning". Hydroplanning is seriously influenced by road property, internal pressure, the vehicle velocity, the tread pattern, and so on. In this paper, the width of tire-groove among several factors is considered and 3 groove models are applied. The rolling analysis of tire is performed by MSC/Dytran.
최주형(Joohyoung Choi),전도형(dohyoung Jeon),조진래(Jinrae Cho),김기전(Gijeon Kim),우종식(Jongshik Woo) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper is concerned with the braking distance estimation of tire operated with ABS (Anti-lock Braking System). The frictional heat dissipation at disc pad is derived analytically, and the tire frictional energy loss is computed by utilizing the 3-D dynamic rolling analysis of tire. Dynamic rolling analysis during entire braking time period is impratical, so that this study divides the vehicle velocity by 10km/h to reduce the analysis time. The multiplication of the slip rate and the shear stress provides the frictional energy rate. Using frictional energy rate, total braking distance is estimated