| 液舱晃荡与浮体非线性耦合运动分析(英文) |
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| 引用本文： | 黄硕,段文洋,张昊.液舱晃荡与浮体非线性耦合运动分析(英文)[J].船舶与海洋工程学报,2012,11(4):427-436. |
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| 作者姓名： | 黄硕 段文洋 张昊 |
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| 作者单位： | College of Shipbuilding Engineering,Harbin Engineering University;CCCC-FHDI Engineering Co.,Ltd. |
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| 基金项目： | Supported by the National Natural Science Foundation of China(Grant No.51079032);the "111project"(Grant No.B07019) |
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| 摘 要： | Nonlinear interactions among incident wave, tank-sloshing and floating body coupling motion are investigated. The fully nonlinear sloshing and body-surface nonlinear free surface hydrodynamics is simulated using a Non-Uniform Rational B-Spline (NURBS) higher-order panel method in time domain based on the potential theory. A robust and stable improved iterative procedure (Yan and Ma, 2007) for floating bodies is used for calculating the time derivative of velocity potential and floating body motion. An energy dissipation condition based on linear theory adopted by Huang (2011) is developed to consider flow viscosity effects of sloshing flow in nonlinear model. A two-dimensional tank model test was performed to identify its validity. The present nonlinear coupling sway motion results are subsequently compared with the corresponding Rognebakke and Faltinsen (2003)’s experimental results, showing fair agreement. Thus, the numerical approach presented in this paper is expected to be very efficient and realistic in evaluating the coupling effects of nonlinear sloshing and body motion.
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| 关 键 词： | Nonlinear tank-sloshing coupling motion energy dissipation |
A coupled analysis of nonlinear sloshing and ship motion |
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| Shuo Huang,Wenyang Duan,Hao Zhang.A coupled analysis of nonlinear sloshing and ship motion[J].Journal of Marine Science and Application,2012,11(4):427-436. |
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| Authors: | Shuo Huang Wenyang Duan Hao Zhang |
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| Institution: | 1. College of Shipbuilding Engineering, Harbin Engineering University, Harbin, 150001, China
2. CCCC-FHDI Engineering Co.,Ltd., Guangzhou, 510230, China
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| Abstract: | Nonlinear interactions among incident wave, tank-sloshing and floating body coupling motion are investigated. The fully nonlinear sloshing and body-surface nonlinear free surface hydrodynamics is simulated using a Non-Uniform Rational B-Spline (NURBS) higher-order panel method in time domain based on the potential theory. A robust and stable improved iterative procedure (Yan and Ma, 2007) for floating bodies is used for calculating the time derivative of velocity potential and floating body motion. An energy dissipation condition based on linear theory adopted by Huang (2011) is developed to consider flow viscosity effects of sloshing flow in nonlinear model. A two-dimensional tank model test was performed to identify its validity. The present nonlinear coupling sway motion results are subsequently compared with the corresponding Rognebakke and Faltinsen (2003)??s experimental results, showing fair agreement. Thus, the numerical approach presented in this paper is expected to be very efficient and realistic in evaluating the coupling effects of nonlinear sloshing and body motion. |
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