模态加速度法的实质及其与模态综合的关系  

THE ESSENCE OF MODE-ACCELERATION METHOD AND ITS RELATION TO MODE SYNTHESIS

作　　者：倪振华[1] 

机构地区：[1]西安交通大学工程力学系

出　　处：《西安交通大学学报》1993年第1期57-62,共6页Journal of Xi'an Jiaotong University

基　　金：西安交通大学科学基金

摘　　要：给出了模态加速度法新的表达方式,阐明模态加速度法比模态位移法收敛率高的实质.基于新的表达,本文证明了模态综合中自由子结构法和约束子结构法基本模态集的组成均源于模态加速度法.A new expression of the mode-acceleration method is pressented. The reason why the convergence of the method is better than that of the mode-displacement method has been clarified. Based on the new expression, it has been proved that the compositions of basic mode sets employed in the freesubstructure method and the constraint-substructure method of the mode synthesis are both deduced from the modeacceleration method. modal analysis;;mode-accleration;;synthesis method

关 键 词：模态分析 模态加速度 模态综合法 

分 类 号：O327[理学—一般力学与力学基础]