스펙트럴요소법을 위한 새로운 동적분포하중 처리 기법에 관한 연구

초록

Spectral element method(SEM) has been recognized to provide accurate structural dynamic reponses even at high frequency. The Duhamel's integral base SEM developed by the authors for the structures under dynamic distributed loads does not take into account the zero frequency effect and requires significant computational time due to the integration procedure of Duhamel's integral. Hence, in this paper, a new SEM algorithm is proposed. This new algorithm is based on the FEM-type procedure for the distributed loads and includes the zero frequency correction to improve the accuracy. Some numerical results are illustrated to prove the accuracy of present new SEM algorithm.