鹰式波浪能发电装置水动力学性能分析及优化

根据牛顿第二定律,对鹰式波浪能装置多个浮体进行了力学分析,基于微波理论,通过每个浮体之间三种模态的运动耦合,建立了流体力、阻尼力、铰接力、静水回复力等内外力之间的力学方程组。通过以运动浮体为边界条件求解多个浮体的水动力学参数,代入方程组中计算求得最优外加阻尼和最优俘获宽度比,从而优化设计方案,得到此时各浮体在纵荡、垂荡和纵摇三种运动模态下的位移幅值,以及阻尼力、铰接力、液压缸运动速度等相关参数。研究成果为鹰式波浪能装置的设计及制造提供了理论参考和依据。

Hydrodynamic research on a Sharp Eagle Wave Energy Converter

According to Newton's second law, mechanical analysis of multiple floaters Sharp Eagle wave en-ergy converter is carried out. Based on microwave theory, the movement of every buoy in three modes cou-ples each other, and there establishes a mechanical equations which is concerned with fluid forces, wave forces, damping force, hinge force, and so on. Hydrodynamic parameters of multiple buoys are solved when taking moving buoys as boundary conditions. Then through taking hydrodynamic parameters into the equa-tions, optimum additional damping and optimal capture width ratio are calculated out. Following design opti-mizing, a plenty of data is obtained, such as displacements amplitude of each buoy in three motion modes (swing, heaving, pitching), damping force, hinge force, speed of the hydraulic cylinder. Research results provide theoretical reference and basis for Sharp Eagle WEC in design and manufacture.