Piezoelectric Energy Analysis on Diverse Buoy Coupling with Hydrodynamic Parameters  

作　　者：LIU Heng-xu LIU Ming CHAI Yuan-chao SHU Guo-yang JING Feng-mei WANG Li-quan 

机构地区：[1]College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China [2]College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China

出　　处：《China Ocean Engineering》2019年第3期279-287,共9页中国海洋工程（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.U1706227 and 51779063);Heilongjiang provincial fund(Grant No.E2017016);State Key Laboratory of Ocean Engineering(Shanghai Jiao Tong University)(Grant No.1703);the Fundamental Research Funds for the Central Universities(Grant Nos.HEUCFG201828 and HEUCFG201808);the National Innovation and Entrepreneurship Training Program for College Students in 2019

摘　　要：This paper mainly describes the influence factors of the captured energy power by huge wave energy harvesters, in which the vertical motion of buoy can transform ocean’s potential energy into piezoelectric energy power by undulating waves. Firstly, related environmental coefficients are analyzed by means of the incident wave theory. Besides, the geometric structural parameters are also analyzed and compared under optimal environmental coefficients with semi-analytical solutions. Thirdly, the numerical results also show the impact trend of hydrodynamic parameters and geometric volume on motion, voltage and power with qualitative agreement. The numerical simulation confirms that the improved structure parameters could markedly deliver sufficient power under the same conditions with long-time stability.This paper mainly describes the influence factors of the captured energy power by huge wave energy harvesters, in which the vertical motion of buoy can transform ocean’s potential energy into piezoelectric energy power by undulating waves. Firstly, related environmental coefficients are analyzed by means of the incident wave theory.Besides, the geometric structural parameters are also analyzed and compared under optimal environmental coefficients with semi-analytical solutions. Thirdly, the numerical results also show the impact trend of hydrodynamic parameters and geometric volume on motion, voltage and power with qualitative agreement. The numerical simulation confirms that the improved structure parameters could markedly deliver sufficient power under the same conditions with long-time stability.

关 键 词：SEMI-ANALYTICAL method INCIDENT wave theory PIEZOELECTRIC CANTILEVER beam HYDRODYNAMIC characteristics lumped and structural parameters 

分 类 号：P[天文地球]