一种推板胶囊式海浪发电装置运动学与动力学分析

KINEMATICS AND DYNAMICS ANALYSIS OF PUSH PLATE CAPSULE WAVE POWER GENERATOR

综合考虑海浪发电装置的研究现状并结合中国的海域情况,设计一种推板胶囊式海浪发电装置。首先,对其结构和工作原理进行介绍。然后,根据线性微幅波理论与弗汝德-克雷洛夫假定法(Freude-Krylov hypothesis)在对受力板受到水平波浪力进行求解时,可等效为标准的振动系统模型,对该等效模型的固有频率和各阶振动主振型进行求解即可。最后,运用D-H(Denavit-Hartenberg matrix)法进行矩阵变换,建立基于广义坐标的拉格朗日动力学方程(Lagrange dynamics equation),利用ADAMS(automatic dynamic analysis mechamical systems)软件对振动系统进行动力学仿真,根据仿真结果得到系统的运动规律。该研究可为实现海浪发电提供一种新途径。

The paper combines the research status of China’s sea conditions and wave power generation equipment. the article analyzes its structure and working principle. Then,on the basis of the linear micro-amplitude wave theory and Freud-Krelov hypothesis,it tries to solve the wave force of the vibration system. The wave force on the horizontal direction of the moving push plate is obtained. At the same time,the model equivalence of the vibration system is applied to establish a systematic model of mathematics,and in this way,the natural frequencies of the vibration system and the main vibration modes of each vibration are obtained. Finally,the D-H method is used to transform the matrix,and then establish the Lagrange dynamics equation based on generalized coordinates. The ADAMS is employed to carry out dynamic simulation of vibration system,and then the simulation results which are gained helps to find the motion law of the system. This study can open a prospect for wave generation.