状态空间模型在海洋波能转换系统中的应用 Ⅱ.单个矩形振荡浮子装置运动受力分析的解析方法

郑永红; 游亚戈; 沈永明; 吴必军; 刘荣

状态空间模型在海洋波能转换系统中的应用 Ⅱ.单个矩形振荡浮子装置运动受力分析的解析方法

1.
中国科学院, 广州能源研究所, 广东, 广州, 510070
2.
大连理工大学, 海岸和近海工程国家重点实验室, 辽宁, 大连, 116023

基金项目: 国家自然科学基金资助项目(59976047;59979025);国家"十五""863"计划项目资助(2001AA516010);国家杰出青年基金资助项目(50125924).

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出版历程
- 收稿日期: 2002-08-25
- 修回日期: 2003-06-02

Application of the state-space model to the system of wave energy conversion Ⅱ. Analytical method for wave forces on single oscillating rectangular buoy

1.
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510070, China
2.
State KeyLaboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China

摘要

摘要: 对线性入射波作用下的矩形振荡浮子运动受力分析给出了一种新的解析方法.对该方法首先采用特征函数展开法得到绕射速度势的一种新解析式,然后直接由绕射势和入射势来计算波浪激励力.与经典方法相比可以看出,对于立面二维问题,由于绕射势和辐射势的计算量相当,因此该方法比过去常用的解析法更为简单.为了验证方法的正确性,采用该方法对过去文献介绍的经典算例进行了计算,得到了与过去方法完全一致的结果,从而证明该方法是正确的.
- 状态空间模型 /
- 振荡浮子装置 /
- 垂荡运动 /
- 波浪力 /
- 解析方法
Abstract: A new analytical method is proposed to analyze the force acting on a recangular oscillating buoy due to linear waves.In the method a new analytical expression for the diffraction velocity potential is obtained first by use of an eigenfunction expansion method and then the wave excitation force is calculated by use of the known incident wave potential and the diffraction potential.Compared with the classical analytical method,it can be seen that the present method is simpler for a two-dimensional problem due to the comparable effort needed for the computation of diffraction potential and for that of radiation potential.To verify the correctness of the method,a classical example in the reference is recomputed and the obtained results are in good accordance with those by use of other methods, which shows that the present method is correct.
- state-space model /
- oscillating buoy device /
- heaving /
- wave force /
- analytical method

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参考文献(17)

GARRETT C J R.Wave forces on a circular dock[J].J Fluid Mech,1971,46: 129-139.

BLACK J L,MEI C C,BRAY M C G.Radiation and scattering of water waves by rigid bodies[J].J Fluid Mech,1971,46: 151-164.

HULME A.The wave forces on a floating hemisphere undergoing forces periodic oscillations[J].J Fluid Mech,1982,121:443-463.

WU GX,TAYLOR R E.The second-order diffraction force on a horizontal cylinder in finite water depth[J].Applied Ocean Research,1990,14: 51-58.

BERGGREN L,JOHANSSON M.Hydrodynamic coefficients of a wave energy device consisting of a buoy and a submerged plate[J].Applied Ocean Research,1992,14: 51-58.

EIDSMOEN H.Hydrodynamic parameters for a two-body axisymmetric system[J].Applied Ocean Research,1995,17:103-115.

WU Cbong,WATANABE E,UTSUNOMIYA T.An eigenfunction expansion-matching method for analyzing the waveinduced responses of an elastic floating plate[J].Applied Ocean Research,1995,17: 301-310.

MCIVER P,MCIVER M.Wave-power absorption by a line of submerged horizontal cylinders[J].Applied Ocean Research,1995,17: 117-126.

LEE Jaw-fang.On the heave radiation of a rectangular structure[J].Ocean Engineering,1995,22(1):19-34.

HSU Huh-siao,WU Yung-chao.The hydrodynamic coefficients for an oscillating rectangular structure on a free surface with sidewall[J].Ocean Engineering,1997,24(2): 177-199.

YEUNG R W.Numerical methods in free surface flows[J].Ann Rev Fluid Mech,1982,14: 395-442.

LI Bao-yuan,LAU S L,NG C O.Second-order wave diffraction forces and runup by finite-infinite element method[J].Applied Ocean Research,1991,13(6):270-286.

JOSEPH Y T Ng,ISAACSON M.Second-order wave interaction with two-dimensional floating bodies by a time-domain method[J].Applied Ocean Research,1993,15: 95-105.

YOU Ya-ge.Hydrodynamic analysis of wave power devices in near-shore zones[J].Journal of Hydrodynamics (Ser.B),1993,5(3):42-54.

SANNASIRAJ S A,SUNDARAVADIVELU R,SUNDAR V.Diffraction-radiation of multiple floating structures in directional waves[J].Ocean Engineering,2000,28: 201-234.

YUZhi,FALNESJ.State-spacemodellingofaverticalcylinderinheave[J].AppliedOceanResearch,1995,17:265-275.

郑永红,邓幼俊,游亚戈,等.状态空间模型在海洋波能转换系统中的应用.Ⅰ.数值模拟方法改进[J].海洋学报,2003,25(6):126-134.

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文章访问数: 804
HTML全文浏览量: 19
PDF下载量: 1004
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