摘要
为解决某混凝土搅拌运输车试验场第三横梁开裂问题,通过采集分析整车可靠性路试状态下车架风险点的应变载荷,证实乙扭路是造成该横梁开裂的风险路面;对整车进行乙扭路路况下的静载试验,获得横梁风险点应变峰值状态下车轮Z向位移;以车轮Z向位移作为整车静力仿真的边界,通过有限元分析方法对车架结构进行优化改进,并通过试验验证。结果表明:优化后的结构提升了车架可靠性,改进方案满足设计要求。
To solve the cracking problem of the third beam of a concrete mixing truck in test site,by collecting and analyzing the strain load of hot point of frame under the reliability test of vehicle,it was confirmed that the B-type of twisted road was the risk road that causes the beam to break.The static test was carried out under B-type of twisted road to obtain the wheel Z elevation when the strain of hot point of beam reached peak.The wheel Z elevation was taken as the boundary of simulation of vehicle,the frame structure was optimized and improved through the finite element analysis method,and verified through experiments.The results show that the optimized structure improves the reliability of the frame,and the improved scheme meets the design requirements.
作者
耿磊
唐公明
王敏
樊博成
GENG Lei;TANG Gongming;WANG Min;FAN Bocheng(Xugong Automotive Technology Center,Xuzhou Jiangsu 221000,China)
出处
《汽车零部件》
2023年第5期81-85,共5页
Automobile Parts
关键词
横梁
应变载荷
乙扭路
有限元分析方法
beam
strain load
B-type of twisted road
finite element analysis method(FEM)
