Structure analysis and design optimization of stiffeners in LNG tanksLNG 저장탱크 보강재의 구조해석 및 최적설계
- Other Titles
- LNG 저장탱크 보강재의 구조해석 및 최적설계
- Authors
- Jin, C.; Jin, K.-K.; Ha, Sung Kyu; Seo, H.K.; Yoon, I.S.
- Issue Date
- Mar-2012
- Publisher
- Korean Society of Mechanical Engineers
- Keywords
- Analytical solution; Optimizations; Perlite pressure; Stiffener; Structural analysis
- Citation
- Transactions of the Korean Society of Mechanical Engineers, A, v.36, no.3, pp.325 - 330
- Indexed
- SCOPUS
KCI
- Journal Title
- Transactions of the Korean Society of Mechanical Engineers, A
- Volume
- 36
- Number
- 3
- Start Page
- 325
- End Page
- 330
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/27575
- DOI
- 10.3795/KSME-A.2012.36.3.325
- ISSN
- 1226-4873
- Abstract
- This paper describes the structural analysis and optimization of stiffeners used in inner tanks for liquid natural gas (LNG) storage, so that the costs can be minimized while the critical buckling load of the inner tank still exceeds the external pressure exerted by the perlite. The original calculation of perlite pressure applied to the inner tank was based on Zick's code, which led to the overestimation of the external pressure, and consequently, an oversized stiffener. In this study, the effects of the material properties of perlite on the external pressure distribution are scrutinized, and the optimum dimensions of a single stiffener are finally obtained through a series of parametric studies. A 15% decrease in the cost of the stiffener compared with the original design is achieved.©2010 The Korean society ot Mechanical Engineers.
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