基于Ansys的吸能盒结构优化

Optimization of Energy Absorbing Box Structure based on Ansys

为提高汽车的被动安全性,通过三维软件建立了吸能盒三维模型,然后在Ansys中设计碰撞仿真实验,并结合仿真实验结果设计了2种新吸能盒结构,在Ansys中对比3种吸能盒方案的性能好坏,并以吸能盒的厚度和吸能盒直径为设计变量,以提高吸能盒缓冲能力作为实验目标进行了正交实验。通过Ansys仿真实验得出,新设计的吸能盒相比原结构,质量减轻了9.82%,碰撞力峰值减少了42.04%,刚性墙碰撞后产生的加速度最大值减少了33.24%,有效提高了防撞梁的缓冲能力。

In order to improve the passive safety of automobiles,a three-dimensional model of the energy absorption box was established using three-dimensional software.Then,collision simulation experiments were designed in Ansys,and two new energy absorption box structures were designed based on the simulation results.The performance of the three energy absorption box schemes was compared in Ansys,and orthogonal experiments were conducted with the thickness and diameter of the energy absorption box as design variables to improve the buffering capacity of the energy absorption box as the experimental goal.Through Ansys simulation experiments,it was found that the newly designed energy absorbing box has reduced its mass by 9.82%compared to the original structure,reduced the peak collision force by 42.04%,and reduced the maximum acceleration generated after rigid wall collision by 33.24%,effectively improving the buffering capacity of the anti-collision beam.