Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Wet Drop Impact Response Analysis of CCS in Membrane Type LNG Carriers -II : Consideration of Effects on Impact Response Behaviors-

멤브레인형 LNG선 화물창 단열시스템의 수면낙하 내충격 응답해석 -II : 내충격 응답거동에 미치는 영향 고찰-

  • Lee, Sang-Gab (Div. of Naval Architecture & Ocean Systems Engineering, Korea Maritime University) ;
  • Hwang, Jeong-Oh (Div. of Naval Architecture & Ocean Systems Engineering, Korea Maritime University) ;
  • Kim, Wha-Soo (Basic Hull Design Department, Hyundai Heavy Industries Co., Ltd.)
  • 이상갑 (한국해양대학교 조선해양시스템공학부) ;
  • 황정오 (한국해양대학교 조선해양시스템공학부) ;
  • 김화수 (현대중공업 조선구조설계부)
  • Published : 2008.12.31
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Abstract

For the development of the original technique of structural safety assessment of Cargo Containment System(CCS) in membrane type LNG carriers, it is necessary to understand the characteristics of dynamic response behavior of CCS structure under sloshing impact pressure. In the previous study, the wet drop impact response analyses of CCS structure in membrane Mark III type LNG carriers were carried out by using Fluid-Structure Interaction(FSI) analysis technique of LS-DYNA code, and were also validated through a series of wet drop experiments for the enhancement of more accurate shock response analysis technique. In this study, the characteristics of structural shock response behaviors of CCS structure were sufficiently figured out by careful examinations of the effects of specimen weight, drop height, incident angle, corrugation and stiffness of inner hull on its shock response behaviors. The shock response analysis of upward shooting fluid to inner hull was performed, and the reason of faster strain response than shock pressure one was also figured out.

Keywords

References

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  11. Chung, J.Y., Lee, J.H., Kwon, S.H., Ha, M.K., Bang, C.S., Lee, J.N. and Kim, J.J., 2006, "Wet Drop Test for LNG Insulation System," Proceedings of ISOPE, Vol. 3, pp. 199-204
  12. Jang, I.H., 2007, Sloshing Response Analysis of LNG Carrier Tank using of LS-DYNA3D, Master Thesis, Korea Maritime University, Korea
  13. Kim, W.S., Noh, B.J., Lee, H., Mravak, Z., Lauzon, J. de, Maguire, J.R., Radosavljevic, D., Kwon, S.H. and Chung, J.Y., 2008, "Fluid-structure interaction modeling, relating to membrane LNG ship cargo containment system," Proceedings of ISOPE, Vol. 3, pp. 75-84
  14. Lee, S.G., Hwang, J.O. and Kim, H.S., 2008a, "Wet Drop Impact Response Analysis of Cargo Containment System in Membrane Type LNG Carriers," Proceeding of TEAM2008 ISTANBUL, pp. 316-323
  15. Lee, S.G., Hwang, J.O and Kim, H.S., 2008b, "Wet Drop Impact Response Analysis of CCS in Membrane Type LNG Carriers I: Development of Numerical Simulation Analysis Technique through Validationm," Journal of the Society of Naval Architects of Korea, Vol. 45, No. 6 pp. 726-734 https://doi.org/10.3744/SNAK.2008.45.6.726
  16. Lee, S.G., Jang, I.H. and Hwang, J.O., 2006a "Fluid-Structure Interaction Response Analysis using LS-DYNA3D," Proceedings of the Spring Meeting KAOST, pp. 997-1001
  17. Lee, S.G., Jang, I.H. and Lee, J.D., 2006b, "Fluid-Structure Interaction Response Analysis using LS-DYNA3D II," Proceedings of the Annual Autumn Meeting SNAK, pp. 503-538
  18. LSTC, 2007, LS-DYNA User's Manual, Version 971, Livemore Soft Technology Crop., USA

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