摘要
为了分析圆筒浮标式波浪发电装置振幅随激扰频率的变化情况。通过对共振系统建立自由振动微分方程和在浮筒位移激励下的振动方程并求得共振系统稳态解,最后对共振系统参数确定并对共振系统进行仿真分析。研究结果表明:通过对自由振动微分方程和在浮筒位移激励下得振动方程求解,根据重锤的振幅和共振理论,计算出弹簧的弹性系数k=26.40N/mm和系统阻尼系数c=37.83,通过matlab仿真分析,能够清晰的得到重锤的振幅随激扰频率的变化情况,因此可以通过合理的设计影响参数,改变使发电机构的固有频率等于或接近波浪的固有频率,俘能装置发生共振,使其驱动的性能大大提升,从而提高发电效率。
The variation of the amplitude of the cylindrical buoy-type wave power generator when the disturbance frequency changes is analyzed.By establishing the free vibration differential equation of the resonance system and the vibration equation under the displacement excitation of the buoy and finding the steady state solution of the resonance system.Finally, the resonance system parameters are determined and the resonance system is simulated.The results show that the vibration equation can be solved by the differential equation of free vibration and the displacement excitation of the buoy.According to the amplitude and resonance theory of the hammer, the spring coefficient of elasticity k=26.40N/mm and the system damping coefficient c=37.83 are calculated.Through the matlab simulation analysis, can clearly get the amplitude of the hammer with the changes in the frequency of the disturbance, Therefore, it is possible to change the natural frequency of the power generating mechanism to be equal to or close to the natural frequency of the wave by reasonably designing and influencing the parameter so that the resonance of the trap device greatly enhances the driving performance thereof, thereby improving the power generation efficiency.
作者
王涛
沈永辉
WANG Tao;SHEN Yong-hui(College of Mechanical Engineering,Hebei University of Technology,Tianjin 300130,China)
出处
《机械设计与制造》
北大核心
2019年第A01期91-94,共4页
Machinery Design & Manufacture
基金
国家自然科学基金面上项目(51775166)
关键词
波浪发电装置
共振系统
微分方程
固有频率
Wave Power Plant
Resonance System
Differential Equations
Natural Frequency
作者简介
王涛,(1963-),男,天津人,博士研究生,教授,主要研究方向:激光与激光一体化技术;沈永辉,(1991-),男,河北秦皇岛人,硕士研究生,主要研究方向:机电设备及控制.
