This paper is Volume 2 of the ISOPE-2009 paper 'Optimization of LNG tank shape in terms of sloshing impact pressure' and focuses on the sloshing parameter analysis. For this study a computationally efficient approach has been used, which is flexible in geometry and load spectrum. It provides time accurate wall pressure results in three dimensions and 6 Degrees-of-Freedom. Based on the results of specific test cases in volume 1 of this study, rectangular, cylindrical and spherical test tanks are discussed to optimize the tank shape in terms of impact pressure loading. Thereby, the LNG tank geometry has been varied in terms of curvature, steepness of the walls, and length-to-height ratio in order to minimize the LNG impact pressure on the tank. Cylindrical and spherical tank shapes have been analyzed in a multi-tank configuration undergoing forced oscillations in 6 Degrees-of-Freedom representing ocean waves. It has been found that in a multi-tank configuration, the spherical tanks help reducing the overall loads in a specific natural frequency domain when combined with corner-shaped tanks.
LNG tank sloshing parameter study in a multi-tank configuration
2010
8 Seiten, 15 Quellen
Aufsatz (Konferenz)
Englisch
MULTI-CHAMBER ANTI-SLOSHING TANK AND METHOD FOR MANUFACTURING SUCH TANK
Europäisches Patentamt | 2022
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