LS-DYNA 코드의 유체-구조 연성해석 기법을 이용한 자유낙하식 구명정의 가속도 응답 추정

• Published in: 大韓造船學會 論文集 Vol. 47; no. 5; pp. 681 - 688
• Main Authors: 배동명(Dong-Myung Bae), 자키(A.F.Zakki), 김학수(Hag-Soo Kim), 김주곤(Joo-Gon Kim)
• Format: Journal Article
• Language: English; Korean
• Published: 대한조선학회 2010
• Subjects: 조선공학; 유체-구조 연성; Acceleration Response(가속도 응답); Free fall Lifeboat(자유낙하식 구명정); FSI(Fluid-Structure Interaction; ALE(Arbitrary Lagrangian Eulerian) Formulation(ALE 정식화); Coupling Algorithmn(연성 알고리즘); -; ALE
• ISSN: 1225-1143; 2287-7355

During certification of freefall lifeboats, it is necessary to estimate the injury potential of the impact loads exerted on the occupants during water entry. This paper focused on the numerical simulation to predict the acceleration response during the impact of freefall lifeboats on the water using FSI(Fluid-Structure Interaction) analysis technique of LS-DYNA code. FSI problems could be conveniently simulated by the overlapping capability using Arbitrary Lagrangian Eulerian(ALE) formulation and Euler-Lagrange coupling algorithm of LS-DYNA code. Through this study, it could be found that simulation results were in relatively good agreement with experimental ones in the acceleration peak values, and that the loading conditions were very sensitive to the acceleration responses by the experimental and simulation results.