A Study on the Effectiveness of Eigen Modes by Modal Analysis and Application of Approximate Eigen Modes for Continuum

모드중첩법에 의한 고유모드의 유효성 및 연속체 근사 고유모드의 적용에 관한 연구

The purpose of this paper is to evaluate the effectiveness of eigen modes by modal analysis and the application of approximate eigen modes for continuum. This study proposes the appropriate selection technique of eigen modes by modal analysis and the method for the reasonable survey of post-buckling path. And the buckling characteristics of a latticed dome is studied by the application of these approximate eigen modes which have sufficient accuracy and praticallity for response analysis in symmetric and anti-symmetric state of continuous shell. To prove the effectiveness of eigen modes and application of approximate eigen modes for continuum, these results are compared with those of direct method.