轮胎滑水机理在钢带式高速轮胎试验台上的应用  

Application of hydroplaning mechanism in high-speed steel trip tire test rig

作　　者：杨一洋[1] 许男[1] 郭孔辉[1] 陈平[1] 

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130022

出　　处：《吉林大学学报（工学版）》2016年第1期1-7,共7页Journal of Jilin University:Engineering and Technology Edition

基　　金：'973'国家重点基础研究发展计划项目(2011CB711200)

摘　　要：将轮胎的动力滑水的机理应用在钢带式高速轮胎试验台,来实现试验台轮胎台架的水润滑止推平面轴承(简称水轴承)在高速滑移时的润滑。建立了包含Reynolds方程、膜厚方程、变形方程的线接触弹流方程,通过数值迭代计算的方法,仿真出轮胎接触的钢带与纯净水流固耦合的水膜厚度、压力分布曲线,并仿真出一定膜厚下完全滑水的临界车速与胎压的曲线。在临界速度以下,通过水轴承静压来实现水膜的形成。结果表明,与NASA轮胎滑水的速度压力曲线相比,高速轮胎试验台成功地在更低的速度下实现完全水滑。In order to achieve the lubrication of water bearing in high-speed tire test rig under high slip,hydroplaning mechanism is applied in this test rig.A line contact Elastohydrodynamic Lubrication（EHL）model is established,which includes Reynolds equation,thickness equation and deformation equation.The thickness of the water film at the contact interface and the pressure distribution are obtained from the results of numerical iteration calculation.The relationship between the critical speed and tire pressure is analyzed.A water film is formed as the hydrostatic water bearing speed is below a critical value.Compared with NASA formula of hydroplaning critical speed,the high-speed tire test rig can form a dynamic lubrication water film at a lower speed.

关 键 词：车辆工程 轮胎试验台架 弹流动力润滑 轮胎滑水 流固耦合 

分 类 号：U463.341[机械工程—车辆工程]