主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2022, Vol. 47 ›› Issue (24): 69-72.DOI: 10.16638/j.cnki.1671-7988.2022.024.012

• 设计研究 • 上一篇    

某皮卡前悬架弹簧托盘疲劳分析及优化

王宇航，邱 星，邱祖峰，贾慧芳，梅秋武   

  1. 江铃汽车股份有限公司 产品研发总院
  • 出版日期:2022-12-30 发布日期:2022-12-30
  • 通讯作者: 王宇航
  • 作者简介:王宇航（1984—），男，硕士，工程师，研究方向为汽车底盘结构设计及优化，E-mail:ywang7@jmc.com.cn。

Fatigue Analysis and Optimization of Spring Tray of a Pickup Front Suspension

WANG Yuhang, QIU Xing, QIU Zufeng, JIA Huifang, MEI Qiuwu   

  1. Product Research and Develepment Institute, Jiangling Motors Company Limited
  • Online:2022-12-30 Published:2022-12-30
  • Contact: WANG Yuhang

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摘要： 为解决某皮卡前弹簧减震器总成台架疲劳试验中弹簧托盘的开裂失效问题，首先用有 限元技术建立弹簧减震器托盘模型，模拟得到弹簧减震器在拉升、压缩工作过程中托盘应力， 然后运用 Miner 线性累加损伤方法对托盘进行疲劳分析，实现故障再现。通过增大托盘冲压 型面倒圆角，使其通过了台架试验及整车道路耐久试验，表明了此方法的工程有效性。该方 法对减震器结构设计具有很好的指导意义。

关键词: 皮卡前悬架；弹簧托盘开裂；疲劳分析；计算机辅助工程（CAE）；减震器结构优化

Abstract: In order to solve the crack failure of spring tray of front suspension for a pickup in test rig fatigue test, firstly the FE model of damper spring tray was built, the stress history of tray was simulated in spring motion process between jounce and rebound, the fatigue life of tray was analyzed by applying Miner Counting Algorithm for acuminated fatigue analysis, and the failure was accurately reproduced. With the enlargement of tray chamfer, the tray has passed test rig experiment and also full vehicle road durability test, which has shown the engineering practicability of this methodology. This has a good guiding significance to the structure design of shock absorber.

Key words: Pickup front suspension; Failure of spring tray; Fatigue analysis; Computer aidedengineering (CAE); Shock absorber structure optimization