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Numerical Analysis on the Conversion Efficiency of the Pendulor Wave Power Device

Author: WangYanLong
Tutor: WangYuanZhan
School: Tianjin University
Course: Port, Coastal and Offshore Engineering
Keywords: Tilting wave energy generation device ADINA Fluid-structure interaction Wave energy conversion efficiency
CLC: P743.2
Type: Master's thesis
Year: 2009
Downloads: 217
Quote: 4
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Abstract


Ocean wave energy research in the past decades has made significant progress , the world be a lot of research , developed a variety of wave energy conversion device , and some have commercial production . In this paper, the pendulum wave energy power generation device using a water chamber poly waveform established as a wave , hanging its balance board to do the energy-absorbing carrier swing back and forth with the wave motion and the swing of the swing plate driven by a hydraulic pump driven generators . The main advantage of this device are: simple structure, high efficiency , good security . Has the form of power generation in the country . Using the finite element software ADINA pendulum wave energy power generation device , the fluid-structure interaction numerical simulation analysis , to provide a reference for their design . Start working mainly from the following aspects : First , the irregular wave tank tilting wave power device physical model test study , changes in different wave conditions and load to observe the rotation of the swing plate and measured to calculate the output power and wave energy conversion efficiency of the required test data . Secondly, in the the ADINA build two - dimensional numerical wave flume . On this basis , considering the wave - driven swing plate movement , in turn , swing plate movement wave impact form of exercise , the more complex mechanism of interaction between the two , therefore , the use of ADINA fluid-structure interaction calculation function , the establishment of tilting wave power device numerical model and physical model test data to be verified . The calculated results and physical model test in good agreement can be reached to calculate the required accuracy . Finally, based on the ALE theory , Numerical simulation of the pendulum wave energy power generation device of the fluid-structure interaction system changes in order wave conditions and power generation device structure parameters and observe the output power and wave energy conversion efficiency impact structure and wave conditions are met : put the distance of the board from the wall for a quarter of the incident wave , swing plate beat frequency and wave frequency close to the load factor and wave damping coefficient close to a certain ratio , wave power device higher output power and conversion efficiency , this law is to provide a reference for the optimal design of the structure .

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CLC: > Astronomy,Earth Sciences > Oceanography > Marine resources and development > Marine power resources development > Wave energy
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