Component mode synthesis for large-scale structural eigenanalysis

This paper proposes new combination of the mode to be used in the component mode synthesis (CMS). Although the CMS is a method adequate enough to make a large-scale eigenanalysis of structures, it is to be shown in this paper that the improved CMS will become a method more adequate for extremely lar ge-scale eigenanalysis than the conventional one. The method is also demons trated on a parallel system. We present the analysis of a scale of ten mill ion degrees of freedom can be made by the proposed method and the accuracy of the eigenfrequency to be obtained is satisfactory. (C) 2001 Elsevier Sci ence Ltd. All rights reserved.