자유낙하식 구명정의 가속도 응답 추정을 위한 LS-DYNA 에서의 다중물질 ALE 와 단일물질 ALE의 비교

• Published in: 大韓造船學會 論文集 Vol. 48; no. 6; pp. 552 - 559
• Main Authors: 배동명, 자키, Bae, Dong-Myung, Zakki, Ahmad Fauzan
• Format: Journal Article
• Language: English; Korean
• Published: 대한조선학회 01.12.2011
• Subjects: 조선공학; ALE
• ISSN: 1225-1143; 2287-7355

An interest in Arbitrary Lagrangian Eulerian (ALE) finite element methods has been increased due to more accurate responses in Fluid-Structure Interaction(FSI) problems. The multi-material ALE approach was applied to the prediction of the acceleration response of free-fall lifeboat, and its responses were compared to those of the single-material ALE one. It could be found that even though there was no big difference in the simulation responses of two methods, the single-material and multi-material ALE ones, the latter multi-material ALE method showed a little bit more close response to those of experimental results compared to the former single-material ALE one, especially in the x- and z-direction acceleration responses. Through this study, it could be found that several parameters in the ALE algorithms have to be examined more carefully for a good structural safety assessment of FSI problems.