动态载荷下轮胎侧偏特性的理论及试验研究  

The Theoretical and Experimental Study on Tire Cornering Properties under Dynamic Vertical Load

作　　者：郭孔辉[1] 卢荡[1] 

机构地区：[1]吉林大学汽车动态模拟国家重点实验室,长春130025

出　　处：《汽车工程》2005年第1期89-92,共4页Automotive Engineering

基　　金：国家863高技术研究发展计划项目(2003AA501950);国家自然科学基金项目(50175044)资助

摘　　要：提出了在动载和时变印迹长度下轮胎的接触历程概念,导出了计算动载时轮胎接地印迹内各点接触 历程的入迹方程,阐明轮胎动载侧偏力学特性建模机理,克服了动载侧偏特性理论建模的一个基本障碍,建立了考 虑胎体平移弹性小幅动载时的理论模型,并提出了轮胎动载侧偏特性的半经验模型,进行了相应的试验研究,给出 了试验结果与模型计算结果的比较。In this paper, a concept of 'contact process'(CP) under dynamic load and time-varying contact patch length is introduced for the first time, and the 'entry equation' for calculating the CP of different points in contact patch under dynamic load is also deduced. Based on the CP concept, the tire cornering properties under dynamic vertical load (TCPDVL) are investigated and a theoretical model considering carcass lateral translation deformation is developed, so a basic obstacle on the theoretical modeling of TCPDVL is overcome. A semi-empirical tire model of TCPDVL is presented and corresponding tire tests are carried out. The calculated results with the semi-empirical tire model of TCPDVL are compared with the experimental data.

关 键 词：侧偏特性 动载 轮胎 试验研究 时变 力学特性 经验模型 障碍 理论 动态载荷 

分 类 号：U463[机械工程—车辆工程]