摘要
本文利用瑞利法得到了弹性矩形薄板频率估计的Ｗａｒｂｕｒｅｏｎ公式，并利用最优化方法对Ｗａｒｂｕｒｔｏｎ公式进行参数修正，修正后的经验公式改善了含自由边界矩形板的频率估计精度。
The first comprehensive set of solutions for thin rechangula plates was given by warburton. But the results of Warburton' s formual usually have limitations in accuracy for the plates invilving one free edge at leastl. Warburton's formula based wpoh empirical correlation id presented in this paper. With the avaitable and known numerical reswlts,the optimization methed is used to medify the prameters of War-burtons formula.In general, this improves the accuray of solutions.
出处
《机械科学与技术》
CSCD
北大核心
1994年第4期37-44,共8页
Mechanical Science and Technology for Aerospace Engineering
关键词
瑞利法
固有频率
弹性
矩形薄板
Rayleigh method Natural frequency Optimization method.
