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力学与实践 ›› 2020, Vol. 42 ›› Issue (1): 42-49.doi: 10.6052/1000-0879-19-303

• 应用研究 • 上一篇    下一篇

一种轿车车轮应力状态测量与分析方法1)

刘程2), 任念祖, 杨清淞, 陈超, 杜天强, 田程, 刘振国   

  1. 中国汽车技术研究中心有限公司试验所零部件研究部,天津 300300
  • 收稿日期:2019-08-15 发布日期:2020-03-13
  • 通讯作者: 2) 刘程,工程师,主要从事汽车整车及零部件可靠性试验研究工作。E-mail: 363944446@qq.com
  • 基金资助:
    1) 中国汽车技术研究中心有限公司资助项目(18200117)

A NEW METHOD FOR MEASURING AND ANALYZING THE STRESS STATE OF CAR WHEEL BASED ON RIG TEST1)

LIU Cheng2), REN Nianzu, YANG Qingsong, CHEN Chao, DU Tianqiang, TIAN Cheng, LIU Zhenguo   

  1. China Automotive Technology & Research Center Co. Ltd, Tianjin 300300, China
  • Received:2019-08-15 Published:2020-03-13

摘要: 基于台架应变测试试验方法,研究轿车车轮在疲劳试验中的应力状态。结果表明:车轮的径向疲劳试验时,轮胎会对车轮的载荷产生较大的影响,轮胎与转鼓的挤压变形以及正反转动都会对车轮的应力状态产生影响;车轮径向疲劳试验时,最大应变出现在轮辋与轮胎接触位置沿车轮圆周方向,而在靠近轮心位置的应变较小;车轮弯曲疲劳试验时,最大应变出现在轮辐靠近轮心的位置,最大应变出现在轮辐的长度方向;不同的载荷对车轮应变的变化规律并没有影响,但是会对最大和最小峰值产生影响。

关键词: 轿车车轮, 应变测量, 径向疲劳, 弯曲疲劳

Abstract: Based on the bench strain test method, the stress state of the car wheel in the fatigue test is studied. The results show that the tire has a great influence on the load on the wheel during the radial fatigue test. The compression deformation and the clockwise and counterclockwise rotations of the tire and the drum will affect the stress state of the wheel. During the radial fatigue test of the wheel, the maximum load on the wheel occurs at the contact position of the wheel rim and the tire along the wheel circumference, and the load at the position near the wheel center is small. In the wheel bending fatigue test, the maximum load on the wheel appears at the position of the spoke near the wheel center, and the maximum strain is along the length of the spoke. Different loads have no effect on the variation rule of the wheel stress, but will have an impact on the maximum and minimum peak values.

Key words: car wheel, strain measurement, radial fatigue, bending fatigue

中图分类号: 

  • U463.345