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以国内某设计院设计研发的某型防爆胶轮车为研究对象,在满足静动态要求前提下,探究其后车架结构最优、质量最轻。基于变密度法和优化设计理论,利用有限元分析软件Hypermesh对该型防爆胶轮车后车架进行了拓扑优化,利用优化后的模型进行了该后车架的二次设计,得出了该后车架的最优结构。再对新设计的后车架进行尺寸优化,得出该车架各部件最佳的厚度,使轻量化达到最佳程度。对比优化前后该车架的静动态分析结果,得出优化后的后车架比优化前在重量上有所减轻,在结构上更加合理,静动态性能基本上保持不变。
Taking a certain type of explosion-proof tire rubber truck designed and developed by a design institute in China as the research object, under the premise of meeting the static and dynamic requirements, the frame structure after the inquiry is the best and the lightest mass. Based on the variable density method and optimization design theory, Hypermesh finite element analysis software was used to optimize the rear frame of the explosion-proof rubber tire truck. The optimized model was used to design the rear frame. Rear frame of the best structure. After the new design of the rear frame size optimization, draw the best parts of the frame thickness, so that the best light weight. Comparing the static and dynamic analysis results of the frame before and after optimization, it is concluded that the optimized rear frame is lighter in weight than before optimization, and the structure is more reasonable and the static and dynamic performance is basically unchanged.