厢式车多点连接结构的应力数值模拟分析

Numerical Simulation Analysis of Structural Stress of Van Body With the Connected Manner of Multipoint

根据由经典层合板理论推出的夹芯复合板弯扭刚度公式和薄板理论中普通薄板的弯扭刚度公式 ,将夹芯复合板等效成一等厚度单层板 ,然后运用有限元分析方法 ,在动载条件下对车厢与底盘连接形式进行了结构应力数值模拟分析 ,提出了改进方案 。

By quoting flexural and torsional rigidity formulas of sandwich plate derived from classic sandwich theory and flexural and torsional rigidity formulas of thin plate derived from thin plate theory, in this paper, a sandwich plate is equaled to a monolayer plate which has the same thickness, and finite element method is applied to analyze numerically structural stress of connected manner for van body and chassis under dynamic load, and an improved project is provided ultimately , some problems of design which should be noticed are pointed out at the same time.