NASTRAN을 이용한 탑재장비의 받침대의 내충격 해석

초록

In this paper, shock analysis was performedfor coarse and fine mesh model using MSC/NASTRAN and ANSYS after substituting the foundation of deck mounted equipment of marine ship for mass-spring system. In oder to determine input file in MSC/NASTRAN, dynamic reponse analysis was also performed using DDAM based onthe calculation inthe range of low frequency. It was confined that the coarse mesh model has the sufficient effective weight in a lower degree mode compared to the fine mesh model