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弹道学报  2015 

基于正交试验的火炮上架多工况结构优化设计

Keywords: 火炮,机械设计,上架,正交试验,结构优化

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Abstract:

为提高某大口径火炮上架刚强度,建立了火炮上架和摇架结构3种典型工况的有限元模型,进行静态刚强度分析,找出原上架结构存在的问题。通过正交试验得到各子工况最优权重系数组合,利用拓扑优化方法,寻求最佳材料分布,重新设计上架立板形状,修改上架筋板布局,并运用尺寸优化方法确定上架主要板件的厚度尺寸。优化结果表明,在结构质量减小的情况下,该上架各工况刚强度均有不同程度的提高,整体结构更加合理,实现了火炮发射载荷的更合理传递。

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