【摘要】 本文讨论了天线结构的几何优化设计,以结构重量为目标函数,杆件横截面积和节点坐标为设计变量,截面限制、节点坐标限制、节点位移作为约束,其中也反映了精度的要求。结构分析采用刚度法,优化采用具有移动极限的序列线性规划法。最后列举了八米口径天线结构的优化数值结果。更多还原

【Abstract】 This paper describes optimum design of geometry for antenna structure, the aim of which is to design a structure with a minimum total weight. Both positi- ons of the joints and cross-sectional areas are treated as design variables. Design constraints include bounds on member size, joint coordinates, joint displacements as well as the accuracy of antenna structure. The method of analysis is the stiffness method, and the method or optimization is the sequentiel linear program method with move-limits. Finally, some numerical results for a 8-meter antenna structure are given.更多还原