汽车工程

汽车工程 ›› 2022, Vol. 44 ›› Issue (9): 1410-1415.doi: 10.19562/j.chinasae.qcgc.2022.09.012

所属专题： 底盘&动力学&整车性能专题2022年

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车轮双轴疲劳加速试验方法研究

王铁1,2,田程3(),李旭东3,赵宏伟1   

  1. 1.吉林大学机械与航空航天工程学院，长春 　130025
    2.中汽信息科技（天津）有限公司，天津 　300300
    3.中汽研汽车检验中心（天津）有限公司底盘试验研究部，天津 　300300
  • 收稿日期:2022-04-17 修回日期:2022-05-12 出版日期:2022-09-25 发布日期:2022-09-21
  • 通讯作者: 田程 E-mail:tiancheng@catarc.ac.cn
  • 基金资助:
    中汽中心内部重点项目(18200117);天津检验中心重点项目(TJKY2224007)

Research on Wheel Biaxial Fatigue Accelerated Test Method

Tie Wang1,2,Cheng Tian3(),Xudong Li3,Hongwei Zhao1   

  1. 1.School of Mechanical and Aerospace Engineering，Jilin University，Changchun 　130025
    2.CATARC（Tianjin） Automotive Information Consulting Co. ，Ltd，Tianjin 　300300
    3.Chassis Test and Research Department，CATARC Automotive Test Center （Tianjin） Co. ，Ltd. ，Tianjin 　300300
  • Received:2022-04-17 Revised:2022-05-12 Online:2022-09-25 Published:2022-09-21
  • Contact: Cheng Tian E-mail:tiancheng@catarc.ac.cn

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摘要：

为解决车轮双轴疲劳试验周期长、花费大的问题，提出了一种新的车轮双轴疲劳加速试验方法。以双轴载荷作用下车轮关键位置应变测试结果为基础，围绕车轮内部应力呈现的显著旋转周期特性、应力周期性变化幅值与外部载荷强度之间的线性关系，以及双轴载荷比例对车轮主应力方向的显著影响，在损伤等效原则基础上将比例相近的双轴载荷进行合并和缩减。通过试验验证了这一车轮双轴疲劳加速试验方法的可行性和合理性，运用该方法可大幅缩短测试周期，降低试验花费。

关键词: 车轮轮辋, 双轴疲劳加速试验

Abstract:

In view of the long period and high cost of wheel biaxial fatigue test， a novel wheel biaxial fatigue accelerated test method is proposed. Based on the strain measurement results on the key positions of wheel rim under biaxial load condition， with considerations of the apparent rotation cycle characteristics of wheel rim stress， the linear relationship between the cyclic changing stress magnitude and external load intensity and the effects of biaxial load proportion on the direction of wheel rim principal stress， the biaxial loads with similar proportion are merged and reduced based on the principle of damage equivalence. The feasibility and rationality of the wheel biaxial fatigue accelerated test method proposed are verified by tests. The use of the method can greatly reduce the test period and cost.

Key words: wheel rim, biaxial fatigue accelerated test