模态综合超单元法的简化解

A Simplified Solution of Superelement Method of Modal Synthesis

在子结构的固定对接界面最低频率比整体结构基频较高的条件下,导出了模态综合超单元法的简化解.通过数值运算,充分说明了本方法经济有效、精度令人满意.

Under the conditions that the lowest frequency of the substructural fixed interface boundary is higher than the fundamental frequency of the complete structure, the simplifled solution of superelement method of modal synthesis is derived. A comparison of the numercal results indicates that the method used in this paper is economically effectire and reasonably accurate.