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http://dx.doi.org/10.3795/KSME-C.2015.3.3.193

An Effect of Surface Dashpot for KC-1 Basic Insulation System Under Sloshing Loads  

Jin, Kyo Kook (R&D Division, KOGAS)
Yoon, Ihn Soo (R&D Division, KOGAS)
Yang, Young Chul (R&D Division, KOGAS)
Publication Information
Transactions of the KSME C: Technology and Education / v.3, no.3, 2015 , pp. 193-199 More about this Journal
Abstract
Sloshing of LNG cargo can cause high impact loads on the supporting and containing structures. This is particularly critical for membrane-type tanks since these will have flat surfaces and corner regions which can lead to increased peak pressures for sloshing impacts. The membrane-type containment system is much more flexible compared to the steel hull structure. As a result, fluid-structure interaction plays an important role in the structural analysis of the containment system under sloshing load. This study is based on the direct calculation method of applying sloshing loads to the KC-1 basic insulation system using finite element analysis. The structural analysis of KC-1 basic insulation system considers the dashpot as fluid-structure interaction between liquid cargo and the LNG containment system. The maximum stress of the polyurethane form for KC-1 insulation system is 1.5 times lower than one without dashpot.
Keywords
KC-1 Cargo Containment System; Sloshing; Fluid-Structure Interaction;
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  • Reference
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