빙 충돌에 대한 Mark III 멤브레인형 LNG CCS의 구조 안전성 평가
Structural Safety Assessment of Mark III Membrane Type Liquid Natural Gas Cargo Containment System under Ice Collision
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
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 constitutivemodel implementing the strain rate dependant mechanical property was used to consider the typical material characteristics of ice rationally. Arelatively 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 CCSwere simulated by applying the suggested ice collision analysis procedure using the commercial hydro-code LS-DYNA. In addition, the effects of theshapes and colliding speed of the ice bergy bits on the ice-structure interaction and safety of the CCS were examined in detail.
Abstract
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 constitutivemodel implementing the strain rate dependant mechanical property was used to consider the typical material characteristics of ice rationally. Arelatively 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 CCSwere simulated by applying the suggested ice collision analysis procedure using the commercial hydro-code LS-DYNA. In addition, the effects of theshapes and colliding speed of the ice bergy bits on the ice-structure interaction and safety of the CCS were examined in detail.
참고문헌 (12)
- ABS, "Guidance Note on Strength Assesment of Membrane-Type LNG Containment Systems under Sloshing Loads", ~ (2006)
- Bishop, R.E.D, "Hydroelasticity of Ships" (1979), Cambridge University Press
- Choung, J. M, "Comparative Study on Material Constitutive Models of Ice", Proceeding of the Annual Spring Meeting, the Society of Naval Architecture of Korea, Jeju, 03-04 June (2010)
- Derradji-Aouat, A, "Explicit FEA and Constitutive Modelling Of Damage And Fracture In Polycrystalline Ice - Simulations Of Ice Loads On Structures", Proceedings of 18th International Conference on Port and Ocean Engineering under Arctic Conditions, 1, pp.225~238 (2005)
- Derradji-Aouat, A, "Ice Loads on Electric Power Generating Stations in the Belle Isle Strait", Proceedings of 18th International Conference on Port and Ocean Engineering under Arctic Conditions, pp.387~398 (2005)
- Iceberg Collision Scenario, "DnV", Det Norske Veritas, 8~14, pp.Report 2006-0672 (2006)
- Han, S. K, "Structure Risk Analysis of a GTT NO96 Membrane Type LNG Carrier in Baltic Ice Operations", Proceedings of IMechE 2008, 179(222) (2008)
- Lee, S.G, "LNGC Collision Response Analysis with Iceberg Considering Surrounding Seawater", Proceedings of the Twenty-first (2011) International Offshore and Polar Engineering Conference, pp.1128~1135 (2011)
- Lee, S. G, "Structural Safety Assessment in Cargo Containment System in Membrane Type LNGC under Iceberg Collisions", Proceeding of the Annual Autumn Meeting, the Society of Naval Architecture of Korea, Mungueong, 29-30 October (2009)
- Lee, S. G, "Examination of Iceberg Collision Characteristics and Structural Safety Assessment of Membrane Type LNG CCS", Proceeding of the Annual Autumn Meeting, the Society of Naval Architecture of Korea, Mungueong, 29-30 October (2009)
- Liu. Z, "Analytical and Numerical Analysis of Iceberg Collisions with Ship Structures", 박사, pp.2011
- Wang, Y. S, "A Rate-Dependent Stress-Strain Relationship For Sea Ice", Proceedings Of The 1st International Offshore Mechanics And Arctic Engineering Symposium (1982)