基于吸能特性的矩形管截面优化

为了优化矩形管的截面尺寸,改善矩形管的吸能特性,应用LS-DYNA软件对不同截面尺寸的矩形管的耐冲击性能进行数值分析,结果表明,随着长宽比逐渐变大,矩形管的耐冲击性逐渐变差,在变形过程中出现应力波动,当长宽比为1∶1时的矩形管吸收的能量最大,且容易产生叠缩变形,对冲击栽荷的时称性要求相对降低,其适合作为耐冲击结构的基本结构.

Square Tube Section Optimization Based for Energy Absorption Capability

In order to optimize the section size of the square tube and to improves it's energy absorbing characteristic,the LS-DYNA software was used to analysis bear the impact properties to different section size square tube to carry on the numerical in the article,the computed result indicated that the length and breadth is 1:1 square tube(i.e.square section side tube) the absorption energy is biggest,the side tube is easy to produce folds shrinks the distortion,the request of impact load's symmetry is lower,it is...