基于FEM的吸能盒模具优化设计

Optimization design of suction box mold based on FEM

为实现汽车轻量化,用铝制吸能盒代替原先铁制吸能盒,利用SolidWorks软件建立吸能盒的几何模型,以吸能盒模型的横截面形状为变量,通过对9种不同横截面形状吸能盒进行CAE分析,数据结果表明,正六边形蜂巢结构吸能盒的吸能效果最佳,能更有效地保护乘员安全。

In order to realize the lightweight of the car,the aluminum energy absorbing box is used to replace the original iron energy absorbing box,and the geometric model of the energy absorbing box is established by SolidWorks software.The cross sectional shape of the energy absorbing box model is used as a variable,and 9 different cross sections are adopted.The shapes of energy absorbing box are used for CAE analysis.The data results show that the positive hexagonal honeycomb structure energy absorbing box has the best energy absorption effect,which can more effectively protect the occupant safety.