A NUMERICAL STUDY: LIQUID SLOSHING DYNAMICS IN A TANK DUE TO UNCOUPLED SWAY, HEAVE AND ROLL SHIP MOTIONS

被引:0
|
作者
Nasar, T. [1 ]
Sannasiraj, S. A. [2 ]
Sundar, V. [2 ]
机构
[1] Toc H Inst Sci & Technol, Dept Civil Engn, Ernakulam 682313, India
[2] Indian Inst Technol Madras, Dept Ocean Engn, Chennai 600036, Tamil Nadu, India
关键词
Regular wave; perturbation; first mode; primary resonance; parametric resonance; barge; pitching;
D O I
10.3329/jname.v10i2.16215
中图分类号
U6 [水路运输]; P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
In order to explore the physics implicated with the sloshing phenomenon subjected to independent regular sway, heave and roll excitations of the liquid tank system, theoretical studies are carried out. Four liquid fill levels with static liquid depth, h(s), to the length, l of aspect ratio (h(s)/l) 0.163, 0.325, 0.488 and 0.585, are considered. The energy spectra of sloshing oscillation, their qualitative assessment and the harmonics present in the sloshing oscillation are studied. Frequency - Response amplitude has also been presented. The study reveals that sway excites a particular mode of sloshing (primary harmonic) by fulfilling the resonance conditions and also excites secondary modes. However, the roll motion excites the first mode of sloshing irrespective of the excitation frequencies. The heave motion excites the particular mode which is assumed as an initial perturbation.
引用
收藏
页码:119 / 138
页数:20
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