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强爆炸冲击波作用下天线结构的离散变量优化设计
Optimum design of antenna structure’s discrete variables under intense explosion shock wave loading
【摘要】 首先建立了强爆炸冲击波作用下天线结构受精度和应力约束的连续变量优化设计数学模型 ;其次 ,根据材料特点 ,将设计变量取为离散变量 ,提出了天线结构在强爆炸冲击波作用下受精度和应力约束的离散变量优化设计数学模型。采用离散变量优化算法———离散复合形法 ,对强爆炸冲击波作用下的 8m天线进行了优化计算。结果表明 ,经优化设计后 ,天线重量仅为初始重量的 4 0 %。
【Abstract】 Firstly a mathematic model is established for optimizing design of antenna structure’s continuous variables under intense explosion shock wave loading, which is constrained by structure’s accuracy and stress. Then according to the characteristics of structure material the variables are treated as discreteness, and the model is modifie for discrete variables. Finally by taking an optimum design method of discrete variables the discrete compound shape method, the optimizing calculation of 8m antenna is carried out. Results indicate that the optimized antenna weights only 40% of the initial un optimized one.
【Key words】 mechanics of explosion; optimization design; discrete variables; antenna structure; intense explosion; shock wave; math model;
- 【文献出处】 爆炸与冲击 ,Explosion and Shock Waves , 编辑部邮箱 ,2003年04期
- 【分类号】TN82
- 【被引频次】5
- 【下载频次】70