【摘要】：波浪能是海洋表面波浪所具有的動能和勢能，是海洋能源中蘊藏最為豐富的能源之一，世界各國對其投入了廣泛關注。在眾多的波浪能發(fā)電裝置中，擺式波浪能發(fā)電裝置因其結構簡單可靠、采能效率高及適用范圍廣等優(yōu)點而倍受青睞。本文提出了一種多浮擺式波浪能采能裝置，主要對該裝置的水動力學特性進行了理論及實驗研究，并進行了結構優(yōu)化。 1、以我國的能源結構及豐富的波浪能資源為研究背景，闡述了課題研究的意義，并從理論分析、模型實驗以及原型實海況實驗三方面分析了國內(nèi)外在擺式波浪能發(fā)電裝置中的研究現(xiàn)狀。 2、基于三維勢流理論對浮擺進行了水動力學研究，分別得出了多浮擺在頻域及時域下的水動力學系數(shù)及運動響應方程。 3、結合AQWA軟件分別對雙、三浮擺進行了水動力學頻域計算和時域計算，并與單浮擺進行對比分析，研究表明：多浮擺間的相互作用將產(chǎn)生異于單浮擺的共振峰值；同時，改變浮擺的間距等參數(shù)進行計算，以尋找最適宜裝置采能的參數(shù)，研究表明：當浮擺間的間距在入射波波長一半左右時，裝置的采能效率最高；在三浮擺情況下，，中間浮擺的運動響應高于迎浪浮擺和背浪浮擺。 4、根據(jù)一定的模型設計準則，設計了多浮擺式采能裝置的模型，并將模型放人波浪水槽中進行實驗，將多浮擺與單浮擺進行對比，分析了浮擺的采能效率，并與數(shù)值計算結果進行對比，驗證了數(shù)值模擬的正確性。 5、在數(shù)值模擬結果的基礎上，建立了多浮擺結構優(yōu)化的目標函數(shù)及約束條件，并基于遺傳算法對浮擺結構進行優(yōu)化，得到了浮擺的最終結構參數(shù)。結果表明：利用遺傳算法對浮擺結構進行優(yōu)化可以得到理想的設計參數(shù)。 6、根據(jù)福建沿海海域的波浪特點，對三種安裝位置的擺式采能裝置：海面之上、海中和海底，采用層次分析法對其進行了全面分析，最終選擇了一種較適宜福建沿海海域的擺式裝置。
[Abstract]:Wave energy is the kinetic energy and potential energy of ocean surface waves. It is one of the most abundant energy sources in ocean energy. Among the many wave energy generating devices, the tilting wave energy generator is popular for its simple and reliable structure, high efficiency and wide range of application. In this paper, a multi-floating-pendulum wave energy recovery device is proposed. The hydrodynamic characteristics of the device are studied theoretically and experimentally, and the structure is optimized. 1. Based on the research background of energy structure and abundant wave energy resources in China, the significance of the research is expounded, and the theoretical analysis is made. The research status of tilting wave power generation equipment at home and abroad is analyzed in three aspects: model experiment and prototype real sea condition experiment. 2. Hydrodynamics of floating pendulum is studied based on three-dimensional potential flow theory. The hydrodynamic coefficients and motion response equations of multi-floating pendulum in time-domain are obtained. 3. In combination with AQWA software, the hydrodynamic frequency domain and time domain calculation of the double and three floating pendulum are carried out, and compared with the single floating pendulum, the results show that the interaction between the multiple floating pendulum will produce the resonance peak which is different from that of the single floating pendulum; At the same time, the parameters such as the spacing of the floating pendulum are changed to find the most suitable parameters of the device. The results show that: when the spacing between the pendulum is about half of the incident wave length, the energy recovery efficiency of the device is the highest; In the case of three floating pendulum, the motion response of middle floating pendulum is higher than that of facing wave floating pendulum and back wave floating pendulum. 4. According to the certain model design criterion, the model of multi-floating pendulum energy mining device is designed, and the model is put into the wave tank for experiment, the multi-floating pendulum is compared with the single floating pendulum, and the efficiency of the floating pendulum is analyzed. The correctness of the numerical simulation is verified by comparing with the numerical results. 5. On the basis of numerical simulation results, the objective function and constraint conditions of multi-floating pendulum structure optimization are established, and the final structure parameters of floating pendulum are obtained based on genetic algorithm. The results show that the optimal design parameters can be obtained by genetic algorithm. 6. According to the wave characteristics of Fujian coastal waters, three kinds of tilting energy mining devices are analyzed by analytic hierarchy process (AHP), which are above the sea level, middle and bottom of the sea. Finally, a pendulum device suitable for Fujian coastal waters was selected.
【學位授予單位】：集美大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：P743.2

【參考文獻】

相關期刊論文 前6條

1 謝楠,郜煥秋;波浪中兩個浮體水動力相互作用的數(shù)值計算[J];船舶力學;1999年02期

2 鄭崇偉;;南海波浪能資源與其他清潔能源的優(yōu)缺點比較研究[J];亞熱帶資源與環(huán)境學報;2011年03期

3 李繼剛,李殿森,楊慶保;從正反兩個角度探討擺式波力電站的吸能機制[J];海洋技術;1999年01期

4 戴彥德;朱躍中;;重塑能源 實現(xiàn)可持續(xù)發(fā)展[J];中國科學院院刊;2013年02期

5 趙崢;張亮亮;;新形勢下如何實現(xiàn)我國能源戰(zhàn)略的轉型[J];經(jīng)濟縱橫;2013年03期

6 譚思明;秦洪花;趙霞;張卓群;朱延雄;舒飛濤;;海洋波浪能領域國際專利競爭態(tài)勢分析[J];現(xiàn)代情報;2011年09期

相關博士學位論文 前1條

1 趙海濤;浮力擺式波浪能裝置的水動力性能研究[D];浙江大學;2012年

本文編號：2375105