重卡车架用固定螺栓失效分析及方案优化  

Failure Analysis and Scheme Optimization of Fixing Bolts for Heavy Truck Frames

作　　者：李鹏 王磊 LI Peng;WANG Lei(Shaanxi Heavy Duty Automobile Company Limited,Xi'an 710200,China)

机构地区：[1]陕西重型汽车有限公司,陕西西安710200

出　　处：《汽车实用技术》2024年第10期80-83,共4页Automobile Applied Technology

摘　　要：螺栓连接的失效问题为汽车行业当前所关注的重点课题。文章基于某重型越野车在试验过程中出现的螺栓断裂问题,首先按照汽车标准件手册选用紧固件,其次对断裂螺栓进行宏观观察,找到断裂起源区,然后对断裂螺栓进行了理化分析及计算机辅助工程(CAE)分析。通过深入分析找到了失效原因,并提出了预防失效的方法措施,为解决固定螺栓断裂提供一个可行思路。The failure problem of bolted connection is the focus of the automobile industry.Based on the bolt breakage problem of a heavy off-road vehicle in the test process,this paper firstly selects fasteners according to the automobile standard parts manual,and then makes a macroscopic observation of the broken bolts,finds the origin area of the fracture,and then carries out physical and chemical analysis and computer aided engineering(CAE)analysis of the fracture bolts.Through the in-depth analysis of the failure causes,the failure causes are found,and the preventive measures are put forward,which provides a feasible idea for solving the fixed bolt fracture.

关 键 词：螺栓断裂 失效分析 CAE分析 解决措施 

分 类 号：U463.1[机械工程—车辆工程]