超重型汽车车架静动态应力的有限元分析  

Finite Element Analysis of Static-Dynamic Stress of Heavy Truck

作　　者：李玉娟[1] 

机构地区：[1]东北工学院

出　　处：《汽车工程》1989年第1期35-43,共9页Automotive Engineering

摘　　要：车架是超重型汽车的关键部件,在使用过程中车架常常达不到预期的使用寿命而出现裂纹。因此研究车架的静应力及随机应力水平,是解决裂纹问题、研究车架强度的基础。本文在现场测试的基础上,用线弹性理论的有限单元法,对车架进行了静态计算及随机载荷下的动态分析,给出了车架的随机响应及沿车架轴线各截面的最大应力分布曲线。Heavy trucks are one of the main transportations in opencast nowadys. The truckframe is a key part of a truck. In the process of service, the predicted service liftoften could not be reached because cracks appear. To study the static stress andrandom stress level is the basis for solving the problem of crack and strengh oftruck frame. Based on the measure on the spot, the calculations on the frames of truck understatic loads and dynamic loads are carried on by means of the linear elastic FEM.The random response of the frame and destribution curve of the maximum of stresson the sections along the axis are given in the paper.

关 键 词：重型汽车 车架 应力 有限元法 

分 类 号：U463.831[机械工程—车辆工程]