摘要
某轻卡在道路试验过程中出现后桥桥壳左侧制动气室支架焊接处撕裂拔起的危险情况,本文通过焊接失效分析得到焊接处撕裂原因,预测了撕裂起源位置,并通过有限元分析模拟轻卡后桥桥壳制动气室支架底座焊接处强度载荷工况,并对其气室支架底座结构及焊接方式进行改进设计,降低了各工况下桥壳的最大应力值,使其满足设计要求,规避风险。
During the road test of a light truck,the dangerous situation of tearing and pulling out at the welding place of the brake chamber bracket on the left side of the rear axle bridge shell.In this paper,the causes of tearing at welded joints are obtained by welding failure analysis,the origin of tearing is predicted,and the strength load condition of the brake chamber bracket is simulated by finite element analysis.The structure and welding method of the brake chamber bracket are improved and designed to reduce the maximum of the axle bridge shell each working condition stress value,and to meet the design requirements and avoid risks.
作者
杨小见
张硕猛
耿广锐
孙磊
宁忠翼
YANG Xiao-jian;ZHANG Shuo-meng;GENG Guang-rui;SUN Lei;NING Zhong-yi(Technical Center of Dongfeng Commercial Vehicle Co.,Led.,Wuhan 430056,China)
出处
《汽车科技》
2019年第4期82-85,90,共5页
Auto Sci-Tech
关键词
轻卡
桥壳
撕裂
气室支架底座
CAE分析
light truck
bridge Shell
tearing
brake chamber bracket
CAE analysis
