火箭筒托架零件一体化成形分析及轻量化设计

目的 研究某型号火箭筒托架零件一体化成形及工况载荷下的结构轻量化设计方法。方法 提出了基于3D打印制造的铝合金一体化快速成形方法，并结合有限元分析和理论公式，得出了一体化托架在冲击载荷作用下的结构强度评估方法，进行了变形、应变及应力分析，在此基础上对托架进行了轻量化优化设计。结果 在满足强度要求的情况下，一体化托架相对传统成形整体质量减轻了153.535g，减少了41.76%，效果明显。结论 实现了托架的一体化成形，完成了托架的轻量化设计，研究结果为火箭筒零件一体化成形及冲击载荷下结构的轻量化设计提供了参考。

Analysis and Lightweight Design of Integrated Forming of Rocket Launcher Bracket Parts

The work aims to study the integrated forming of some rocket launcher bracket parts and the structural lightweight design method under working load. A rapid integrated forming method for aluminum alloy based on 3D printing manufacturing was proposed. Combined with finite element analysis and theoretical formula, the structural strength evaluation method of the integrated bracket under impact load was obtained, and the deformation, strain and stress were analyzed. On this basis, the lightweight optimization design of the bracket was carried out. Under the condition of meeting the strength requirements, the weight of the integrated bracket was reduced by 153.535 g, with a decrease of 41.76% compared with the weight of bracket subject to traditional forming, and the weight reduction effect was obvious. The integrated forming of the bracket is realized, and the lightweight design of the bracket is completed. The research results provide a reference for the integrated forming of rocket launcher parts and the lightweight design of the structure under impact load.