波浪中多船近距离并行航行的水动力干扰研究

许勇; 董文才

doi:10.3879/j.issn.1000-0887.2014.04.005

波浪中多船近距离并行航行的水动力干扰研究

doi: 10.3879/j.issn.1000-0887.2014.04.005

许勇,
董文才

海军工程大学舰船工程系, 武汉 430033

基金项目: 国家自然科学基金（50879090）；水动力重点基金（9140A14030712JB11044）

详细信息

作者简介:
许勇（1981—），男，湖南岳阳人，博士生（通讯作者. E-mail: nancy23670@163.com）

中图分类号: U661.32;O352
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- 文章访问数: 1137
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- 被引次数: 0
出版历程
- 收稿日期: 2013-10-08
- 修回日期: 2014-03-13
- 刊出日期: 2014-04-15

Hydrodynamic Interactions Between Multiple Ships Advancing Parallel in Close Proximity in Waves

Department of Naval Architecture, Naval University of Engineering, Wuhan 430033, P.R.China

Funds: The National Natural Science Foundation of China（50879090）

摘要

摘要: 采用三维势流理论及多体动力学理论建立了波浪中近距离并行航行多船波浪作用力及运动响应的计算模型.为考虑航速效应对船体间自由面的影响，采用三维移动脉动源Green（格林）函数来模拟船间的辐射波及绕射波.采用该数学模型求解了零航速及有航速情形下两船近距离并行时的流体动力项及运动响应，和模型试验结果比较验证了方法的可靠性.将该方法推广至三船并行航行的情形，重点分析了三船并行时水动力干扰和两船并行时水动力干扰的差异.
- 水动力干扰 /
- 多船 /
- 波浪作用力 /
- 运动响应 /
- 移动脉动源
Abstract: A three-dimensional frequency-domain calculation model based on the potential flow theory and multi-body dynamics theory was developed to investigate wave loads and free motions of multiple closely-spaced, hydrodynamically interacting ships advancing parallel in waves. In order to consider the speed effects on free surface in the gaps between these ship bodies, the translating-pulsating source Green’s function was chosen to simulate the radiation and diffraction waves. The model was validated through solving of the hydrodynamic terms and free motions of two parallel closely-arranged ship models advancing at zero or positive forward speeds in regular waves. Numerical results were also presented in the case of three parallel ships. Comparison of the dynamic behaviors between the two-ship case and three-ship case shows that in the two cases hydrodynamic interaction effects are quite different. The presented model is useful to predict wave loads and free motions of multiple vessels in underway replenishment on the sea.
- hydrodynamic interaction /
- multiple ships /
- wave loads /
- free motions /
- translating-pulsating source

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参考文献(20)

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