【摘要】 本文以结构频率作为目标函数,以结构重量作为约束,由极值条件推导出结构动力优化的最优准则;构造了一种以结构最低固有频率作为约束频率的结构最轻重量设计方法,并建立了相应的迭代公式和收敛准则。对天线结构进行了动力优化设计,得出一些对于天线结构设计有益的结论。更多还原

【Abstract】 This paper describes an optimality criterion for structural dynamic opti- mization which is subject to structural weight constraint,with the structural frequen- cy as an objective function. A method of minimum weight design with the lowest frequen- cy as the constraint frequency is provided, and the iterative formulas and convergence criteria are found. Some interesting conclusions for antenna structure design are obtai- ned by studying the optimum antenna structures.更多还原