![]() ![]() ![]() In this paper, a semi-analytical model based on linear potential flow theory and an eigenfunction expansion method is developed to study wave scattering by a porous elastic plate with arbitrary shape floating in water of finite depth. The peaks and the overall level of the frequency response of dimensionless wave power absorption both rise dramatically as the plate edge condition changes into clamped from simply supported. It is found that a plate-WEC with a smaller radius generally provides a better performance in terms of the averaged wave power that can be absorbed per unit area of the plate. The validated theoretical model is then applied to examine the effect of radius and submergence on wave power extraction of the plate-WEC. The model is first validated by comparing the results of wave power absorption by using two different methods, i.e., a straightforward method and an indirect method in terms of far-field coefficients. A theoretical model based on the linear potential flow theory and the eigenfunction matching method is developed to solve the hydroelastics of the device with the electro-mechanical and the hydrodynamic problems coupled together. The plate-WEC is simulated by a submerged elastic disk, which can be either simply supported or clamped at the edge. In this paper, the performance of a piezoelectric plate is investigated. For the continuum PTO system, it is theoretically possible to adopt optimised PTO damper and stiffness/mass to guarantee the absorption of 100% of the energy flux available in one circular component of the plane incident wave.Ī submerged elastic plate can work as a plate-wave energy converter (WEC) to capture wave power provided that piezoelectric layers are bonded to both faces of the flexible substrate. The device adopting a continuum PTO system is found to capture wave power efficiently in an extensive range of wave frequencies. ![]() After running convergence analysis and model validation, the present model is employed to do a multiparameter impact analysis. ![]() Two methods are proposed to predict the wave power absorption of the device. The continuum PTO approximation is tested against the discrete PTO simulation for accuracy. The PTO system is simulated as a discrete PTO, and moreover, it is also modelled as a continuum PTO to represent the case when the PTO system is composed of a large number of PTO units. A theoretical model based on the linear potential flow theory and eigenfunction matching method is developed to study the hydroelastic characteristics and evaluate wave power absorption of the device. The floating plate is moored to the seabed through a series of power takeoff (PTO) units. In this paper, a concept of a floating elastic wave energy converter consisting of a disk-shaped elastic plate is proposed. As the PWEC submergence increases, the main peaks of the wave power absorption efficiency become lower and narrower, and slightly shift towards large wave frequencies. It is revealed that as the PWEC width increases, more peaks of the frequency response of wave power absorption efficiency can be excited in the computed range of wave conditions. Effects of the width and submergence of the PWEC, and also the width and draft of the breakwater, on wave power absorption of the breakwater integrated PWEC are examined with the employment of the present model. To evaluate the performance of the breakwater-attached PWEC, a hydroelastic model with the electro-mechanical and the hydrodynamic problems of the PWEC coupled together is developed based on linear potential flow theory and the eigenfunction matching method. The PWEC is simply supported at the edge. In this paper, wave power extraction from a PWEC moored in front of a pile-supported breakwater is investigated. A submerged flexible plate with piezoelectric layers bonded to both faces of it may work as a piezo-electric wave energy converter (PWEC), the elastic motion of which excited by water waves can be transformed into useful electricity due to the piezoelectric effect. ![]()
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