东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2007, Vol. 28 ›› Issue (11): 1652-1655.DOI: -

• 论著 • 上一篇    下一篇

刹车时轮胎动态接触压力的三维有限元分析

张俊;朱浮声;武泽锋;   

  1. 东北大学资源与土木工程学院;东北大学资源与土木工程学院;辽宁省公路管理局 辽宁沈阳110004;辽宁沈阳110004;沈阳建筑大学;辽宁沈阳110168;辽宁沈阳110005
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2007-11-15 发布日期:2013-06-24
  • 通讯作者: Zhang, J.
  • 作者简介:-
  • 基金资助:
    辽宁省交通科技重点项目(0512)

Analysis of tire's dynamic contact pressure during braking by 3-D FEM

Zhang, Jun (1); Zhu, Fu-Sheng (1); Wu, Ze-Feng (3)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; (2) School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China; (3) Bureau of Road Management of Liaoning Province, Shenyang 110005, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-11-15 Published:2013-06-24
  • Contact: Zhang, J.
  • About author:-
  • Supported by:
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摘要： 分析刹车状态下轮胎动态接触压力的大小和分布.采用三维有限元方法,把轮胎简化处理为实心,采用变形等效原则拟合轮胎的计算参数.结果表明:低胎压轿车轮胎刹车时接地形状近似为梯形,高胎压货车轮胎刹车时接地形状近似为矩形;负荷一定时,胎压升高,轮胎接触压力增大,胎压一定时,负荷增加接触压力也增加;刹车状态下轮胎接触压力大于静止状态下接触压力.有限元计算结果与文献实测结果较为接近,说明把轮胎简化处理为实心,采用变形等效原则拟合得出轮胎参数,进行轮胎的动态接触压力分析是可行的.

关键词: 轮胎, 接触压力, 刹车, 等效变形, 有限元法

Abstract: The tire's dynamic contact pressure and its distribution during braking were analyzed by the 3-D FEM, where the tire was regarded as a solid one with relevant parameters given by fitting several values on the principle of equivalent deformation. The results indicated that the area on low-pressure tire due to contact pressure is similar to a trapezoid, while that on high-pressure tire is like a rectangle. The contact pressure increases with increasing tire pressure under constant load, and then the contact pressure increases when the tire load is constant. The tire's dynamic contact pressure is greater than its static contact pressure. All these show that the FEM results approximate to the measured results in situ. The method proposed is thus proved feasible to analyze tire's dynamic contact pressure during braking.

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