基于有限元方法的天线折叠式伸展臂结构优化设计

摘要

According to the three-dimensional solid model of satel ite antenna folding extendable mast.Ap-plying the macro of variable parameter and the quadratic developed language(APDL)to the structure of f-olding extendable mast was established the finite element model.The structure of folding extendable mast was extremely improved by using the variable design concept of parameter and the finite element analysis method of optimal design.Final y,we obtained the relationship between the cross-section value,the fre-quency value and the weight value,and the optimal structure of folding extendable mast.The result of opti-mal design the structure of folding extendable mast has great significant.%根据天线折叠式伸展臂的三维实体模型，运用ANSYS宏命令和参数化设计语言(APDL)建立了折叠式伸展臂结构有限元模型。采用有限元优化设计方法并结合变量参数化理念对折叠式伸展臂进行结构优化设计，获得了折叠式伸展臂结构的截面、频率和重量之间的关系，从而找到了一种最优的折叠式伸展臂结构。其结果对折叠式伸展臂结构的优化设计具有较大的指导意义。