轿车轮胎动力滑水分析  

Dynamic hydroplaning analysis of car tire

作　　者：季天剑[1,2,3] 高玉峰[3] 陈荣生[4] 

机构地区：[1]重庆交通大学山区道路建设与维护技术重庆市重点实验室,重庆400074 [2]南京航空航天大学航空宇航学院,江苏南京210016 [3]河海大学土木与交通学院,江苏南京210098 [4]东南大学交通学院,江苏南京210096

出　　处：《交通运输工程学报》2010年第5期57-60,共4页Journal of Traffic and Transportation Engineering

基　　金：重庆交通大学山区道路建设与维护技术重庆市重点实验室开放基金项目(CQMRCM-08-3)

摘　　要：基于弹性流体动力润滑理论,将轮胎、路表水膜和路面作为一个弹性流体动力润滑系统,研究了轮胎的动力滑水问题。在轮胎上建立坐标系,则轮胎是静止的而水膜是运动的,推导了控制动力滑水的Reynolds方程、水膜厚度方程和变形方程,采用复合直接迭代求解方法,并编制了计算程序,分析了轿车轮胎在沥青路面上行驶的动力滑水。分析结果表明:随着行驶速度的增大,能够引起动力滑水的路表水膜厚度不断减小,当行驶速度为120km.h-1时,路表水膜厚度为2mm就会发生动力滑水。The dynamic hydroplaning of car tire was studied by the theory of elastohydrodynamic lubrication.The system of elastohydrodynamic lubrication was made of tire,water on pavement and pavement.The coordinate system was set up on tire,so tire was relatively immobile,and water film was relatively mobile.To control the hydroplaning,the equations of Reynolds,thickness of water and its distortion were derived.The equations were solved by using complex direct iteration algorithm and corresponding program.Computation result indicates that the thickness of water film on pavement that can lead to the hydroplaning becomes lessening with speed increase.The hydroplaning will happen when the speed of car is 120 km·h-1 and the thickness of water film on pavement is 2 mm.2 tabs,2 figs,10 refs.

关 键 词：汽车工程 轮胎 动力滑水 弹性流体动力润滑 

分 类 号：U461.3[机械工程—车辆工程]