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http://dx.doi.org/10.3744/SNAK.2008.45.6.735

Wet Drop Impact Response Analysis of CCS in Membrane Type LNG Carriers -II : Consideration of Effects on Impact Response Behaviors-  

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.)
Publication Information
Journal of the Society of Naval Architects of Korea / v.45, no.6, 2008 , pp. 735-749 More about this Journal
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
Cargo containment system(CCS); Membrane mark III type LNG carrier; Structural safety assessment; Fluid-structure interaction(FSI) analysis technique; LS-DYNA code; Effects on shock response behaviors;
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Times Cited By KSCI : 2  (Citation Analysis)
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16 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
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 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