부분구조 합성법의 고찰 및 유한요소모델과 실험모델과의 합성에 관한 연구

Abstract

Component mode synthesis (CMS) method can be divided into free, fixed and hybrid interface method according to each components connecting conditions. In this paper, major mode synthesis methods were reviewed and their accuracies were examined by comparing the calculated eigenvalues with those from full finite element (FE) model. Also, CMS is expanded into the coupling between finite element (FE) and experimental model. Since the assumed experimental data seldom have slope information, the slope information at the interface points is prepared by curve-fitting of the calculated values. A simple beam structure to show the effectiveness of the above method, and we found that it can improve the accuracy of the synthesis method in calculation, expecially in the low modes.