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 large-scale eigenanalysis than the conventional one. The method is also demonstrated on a parallel system. We present the analysis of a scale of ten million degrees of freedom can be made by the proposed method and the accuracy of the eigenfrequency to be obtained is satisfactory.