摘要
提出接地压力非对称指数的概念,利用轮胎环模型来定量研究接地压力分布的不对称性,分析了物理参数对非对称指数的非线性影响规律。结果发现影响轮胎接地压力分布非对称性的主次因素依次为:角速度、阻尼、带束层有效密度、充气压力、垂向载荷、侧壁径向弹簧参数、带束层径向弹簧参数及带束层有效抗弯刚度。在参数±40%变化范围内,垂向载荷、充气压力和侧壁径向弹簧参数对接地压力分布非对称指数的影响最大。
The paper investigated the tire contact pressure characteristics in the steady state rolling condition based on tire ring model. Unsymmetrical factor is first introduced for measuring the asymmetry of contact pressure in tire rolling. The influence of tire structural parameters on unsymmetrical factor of tire contact pressure is explored. The results show that angular velocity,damping coefficient,belt effective density,inflation pressure,vertical load,sidewall radial spring rate,belt radial spring rate and belt bending stiffness are the most important factors on unsymmetrical factor of tire contact pressure,in that order. In parameter variations of ± 40%,great nonlinear features are shown on the influence of vertical load,inflation pressure and sidewall radial spring rate on tire rolling unsymmetrical factor,in the order.
出处
《机械科学与技术》
CSCD
北大核心
2015年第11期1769-1773,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(51205213)资助
关键词
轮胎
环模型
接地压力
非对称指数
angular velocity,control,damping,deformation,efficiency,fuels,genetic algorithms,mathematical models,pressure distribution,pressure,sensitivity analysis,stiffness,tires
contact pressure,ring model,tire,unsymmetrical factor
