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

  • 제45권6호
  • /
  • Pages.726-734
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  • 2008
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  • 1225-1143(pISSN)
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  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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멤브레인형 LNG선 화물창 단열시스템의 수면낙하 내충격 응답해석 -I : 검증을 통한 수치해석 기법 개발-

Wet Drop Impact Response Analysis of CCS in Membrane Type LNG Carriers -I : Development of Numerical Simulation Analysis Technique through Validation-

  • 이상갑 (한국해양대학교 조선해양시스템공학부) ;
  • 황정오 (한국해양대학교 조선해양시스템공학부) ;
  • 김화수 (현대중공업 조선구조설계부)
  • 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.)
  • 발행 : 2008.12.31
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초록

While the structural safety assessment of Cargo Containment System(CCS) in membrane type LNG carriers has to be carried out in consideration of sloshing impact pressure, it is very difficult to figure out its dynamic response behaviors due to its very complex structural arrangements/materials and complicated phenomena of sloshing impact loading. For the development of its original technique, it is necessary to understand the characteristics of dynamic response behavior of CCS structure under sloshing impact pressure. In this study, for the exact understanding of dynamic response behavior of CCS structure in membrane Mark III type LNG carriers under sloshing impact pressure, its wet drop impact response analyses 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. It might be thought that the structural response behaviors of impact response analysis, such as impact pressure impulses and resulted strain time histories, generally showed very good agreement with experimental ones with very appropriate use of FSI analysis technique of LS-DYNA code, finite element modeling and material properties of CCS structure, finite element modeling and equation of state(EOS) of fluid domain.

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참고문헌

  1. Aquelet, N., Souli, M. and Olovsson, L., 2006, "Euler-Lagrange coupling with damping effects: Application to slamming problems," Computer Methods in Applied Mechanics and Engineering, Vol. 195, pp. 110-132 https://doi.org/10.1016/j.cma.2005.01.010
  2. 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
  3. Jang, I.H., 2007, Sloshing Response Analysis of LNG Carrier Tank using Fluid-Structure Interaction Analysis Technique of LS-DYNA3D, Master Thesis, Korea Maritime University, Korea
  4. 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
  5. 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
  6. Lee, S.G., Jang, I.H. and Lee, J.D., 2006b, "Fluid-Structure Interaction Respons Analysis using LS-DYNA3D II," Proceedings of the Annual Autumn Meeting SNAK, pp. 503-538
  7. LSTC, 2007, LS-DYNA User's Manual, Version 971, Livermore Soft Technology Corp., USA
  8. MSC, 2002, MSC/DYTRAN User's Guide, Version 2002 r2, MacNeal-Schwendler Corp.
  9. Lee, S.G., Jang, I.H. and Lee, J.D., 2006b, "Fluid-Structure Interaction Respons Analysis using LS-DYNA3D II," Proceedings of the Annual Autumn Meeting SNAK, pp. 503-538
  10. LSTC, 2007, LS-DYNA User's Manual, Version 971, Livermore Soft Technology Corp., USA
  11. MSC, 2002, MSC/DYTRAN User's Guide, Version 2002 r2, MacNeal-Schwendler Corp.

피인용 문헌

  1. Comparisons of Multi Material ALE and Single Material ALE in LS-DYNA for Estimation of Acceleration Response of Free-fall Lifeboat vol.48, pp.6, 2011, https://doi.org/10.3744/SNAK.2011.48.6.552
  2. Strength Analysis for the Plate System of the Mark III Cargo Containment vol.27, pp.6, 2014, https://doi.org/10.7734/COSEIK.2014.27.6.625
  3. Strength Assessment of LNG CCS using Strength Analysis Method for Composite Materials vol.51, pp.2, 2014, https://doi.org/10.3744/SNAK.2014.51.2.114