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 ›› 2023, Vol. 48 ›› Issue (19): 77-80.DOI: 10.16638/j.cnki.1671-7988.2023.019.015

• 设计研究 • 上一篇    

某车型下推力杆结构及疲劳仿真分析

陈柳青,张善昌,薛 艺,曹 莉,王 睿   

  1. 西安德仕汽车零部件有限责任公司
  • 出版日期:2023-10-15 发布日期:2023-10-15
  • 通讯作者: 陈柳青
  • 作者简介:陈柳青(1996-),女,硕士,助理工程师,研究方向为虚拟验证,E-mail:565168061@qq.com。

Simulation Analysis of the Structure and Fatigue of the Lower Stinger of a Vehicle Type

CHEN Liuqing, ZHANG Shanchang, XUE Yi, CAO Li, WANG Rui   

  1. Xi'an Deshi Auto Parts Company Limited
  • Online:2023-10-15 Published:2023-10-15
  • Contact: CHEN Liuqing

摘要: 以某车型下推力杆的轻量化为研究对象,通过优化设计结构,减少重量,转移应力集 中部位,以提高结构安全系数以及耐久性。首先建立下推力杆的两种不同结构三维模型,然 后利用 ANSYS 进行有限元分析,并获取两种不同工况的推力杆强度。最后利用得到的静力 学结果在 Ncode 中做疲劳对比分析,结果表明在质量在降低了 28.4%的情况下,安全系数相 比优化前均得到了提升,提高了相应工况的疲劳寿命,优化较为合理,同时为今后的下推力 杆优化设计提供了依据。

关键词: 推力杆;有限元分析;轻量化;疲劳分析

Abstract: The lightweighting of the lower thrust rod of a certain model is studied to reduce the weight and transfer the stress concentration area by optimizing the design structure in order to improve the structural safety coefficient as well as the durability. Firstly, two different structural three-dimensional models of the lower thrust rod are established, and then finite element analysis is carried out using ANSYS and the strength of the thrust rod is obtained for the two different working conditions. Finally, fatigue comparative analysis is done in Ncode using the obtained hydrostatic results. The results show that in the case of 28.4% reduction in mass, the safety factor is improved compared with that before optimization, and the fatigue life of the corresponding working conditions is improved, so the optimization is more reasonable. At the same time, it provides the basis for the optimized design of the lower thrust rod in the future.

Key words: Stinger; Finite element analysis; Lightweight; Fatigue analysis