落物冲击下煤矿胶轮车驾驶室上部结构优化

Optimization on upper structure of cab of colliery rubber-wheeled vehicle under impact of falling objects

为提高煤矿胶轮车驾驶室结构安全性能,以WC8E系列胶轮车驾驶室为例,对其进行11600 J冲击能量的落锤撞击试验,并以落锤冲击力峰值为静态载荷条件,对驾驶室上部结构进行拓扑优化,确定了驾驶室上部结构满足传力路径的结构布置方案。随后采用粒子群与人工鱼群融合的优化算法,对驾驶室上部加强梁结构参数进行了多目标优化设计。结果表明:优化后驾驶室上部结构最大变形量降低35.84%,质量降低41.90%,在满足驾驶室安全性的同时,实现了结构轻量化。

In order to improve the safety performance of the cab of the colliery rubber-wheeled vehicle,the cab of WC8E series rubber-wheeled vehicle being taken as the example,the drop weight impact test involving 11600 J impact energy was carried out,and the peak value of the drop weight impact force was used as the static load condition to conduct topologically optimization for the upper structure of the cab,and then the layout scheme of the upper structure of the cab meeting the force transmission path was determined.After that,the optimization algorithm fusing particle swarm algorithm and artificial fish swarm algorithm was applied to conduct multi-object optimization design for the structural parameters of the reinforcement beam on the upper of the cab.Results showed:the upper structure of the optimized cab decreased by 35.84%in maximum deformation and reduced by 41.90%in mass,the light structure was realized at the time of satisfying the safety of the cab.