Structural Safety Assessment in Membrane-Type CCS in LNGC Under Iceberg Collisions

Lee, S G; Lee, J S; Baek, Youngmin; Paik, J K; Kim, B J

doi:10.3940/rina.icsot.2009.10

Cited by 4 publications

(1 citation statement)

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“…Lee et al(2009aLee et al( , 2009b 역시 Mark III 멤브레인형 LNG 운 반선의 선수 부위에 여러 가지 형상의 유빙이 충돌하는 시나리오 를 가정하고, 가장 널리 사용되고 있는 범용 Hydro-code인 LS-DYNA의 유탄성 해석기법을 적용하여 시뮬레이션 하는 방안 을 제시하였다. Lee and Nguyen(2011)도 이 방법을 발전시켜 다…”

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Structural Safety Assessment of Mark III Membrane Type Liquid Natural Gas Cargo Containment System under Ice Collision

노

윤²,

박³

et al. 2014

Journal of Ocean Engineering and Technology

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In this study, a method for analyzing the collision and interaction between ice bergy bits and a Mark III type liquid natural gas (LNG) carrier was considered, and the structural safety of a ship's hull and cargo containment system (CCS) was evaluated. In the analysis, a constitutive model implementing the strain rate dependant mechanical property was used to consider the typical material characteristics of ice rationally. A relatively simple and easy ice structure interaction analysis procedure, compared with the accurate but complicated FSI analysis scheme, was suggested. When the ice bergy bits collided with ship's side hull under the four assumed scenarios, the structural behaviors of the ship structure and LNG CCS were simulated by applying the suggested ice collision analysis procedure using the commercial hydro-code LS-DYNA. In addition, the effects of the shapes and colliding speed of the ice bergy bits on the ice-structure interaction and safety of the CCS were examined in detail.

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