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http://dx.doi.org/10.7734/COSEIK.2014.27.6.615

Study on Structural Strength of Mark III type LNG Cargo Containment System by Idealized Triangular Impulse Load  

Hwang, Se Yun (Department of Naval Architecture and Ocean Engineering, Inha Univ.)
Kim, Sung Chan (Department of Naval Architecture and Ocean Engineering, Inha Tech. Col.)
Lee, Jang Hyun (Department of Naval Architecture and Ocean Engineering, Inha Univ.)
Nho, In Sik (Department of Naval Architecture and Ocean Engineering, Chungnam Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.27, no.6, 2014 , pp. 615-624 More about this Journal
Abstract
It has been well known the sloshing pressure has complex shape and various patterns. The pattern of sloshing pressure is variously characterized by the pressure amplitude, duration time and skewness. The structural response induced by the sloshing pressure is also affected by the pattern of sloshing pressure and the type of structural members. In order to understand the structural response by the perspective view of categorized pattern, it is more efficient to make simple sloshing pressure pattern than to reflect the complex pressure history. In this study, the sloshing pressures obtained by the small scale model test are simplified with respect to their duration and skewness. Dynamic analyses of Mark-III LNG CCS are then parametrically performed with the consideration of various types of sloshing impact. Meanwhile, the failure pressures given the duration and skewness are investigated after parametric calculations are conducted to investigate the effect of pressure parameters on the structural response.
Keywords
sloshing impact; LNG CCS; dynamic analysis; idealized triangular impulse; structural response;
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