圆筒浮标式波浪发电装置的共振系统分析
|
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=26.40 N/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.
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=26.40 N/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.
引文
[1]王秦,陈曦.北京市城区冬季雾霾天气PM2.5中元素特征研究[J].光谱学与光谱分析,2013,33(6):1441-1445.(Wang Qin,Chen Xi.Study on characteristics of elements in PM2.5 during haze-fog weather in winter in urban Beijing[J].Spectroscopy and Spectral Analysis,2013,33(6):1441-1445.)
[2]程阳,李英.波浪发电装置浮筒的动力特性及参数研究[J].海洋技术学报,2015(1):014.(Cheng Yang,Li Ying.Study on the hydrodynamic characteristics and oarameters of wave energy converters[J].Ocean Technology,2015(1):014.)
[3]张皓然,杨绍辉.海洋波浪能发电装置综述[A].第二届中国海洋可再生能源发展年会暨论坛,2013.(Zhang Hao-ran,Yang Shao-hui.Review of ocean wave power plant[A].Second China Ocean Renewable Energy Development Conference and Forum,2013.)
[4]郑崇伟,李训强.基于WAVEWATCH-III模式的近22年中国海波浪能资源评估[J].中国海洋大学学报:自然科学版,2011,41(11):5-12.(Zheng Chong-wei,Li Xun-qiang.Wave energy resources assessment in the China sea during the last 22 years by using WAVEWATCH-III wave model[J].Periodical of Ocean University of China,2011,41(11):5-12.)
[5]王涛,王天泽.一种圆筒浮标式海浪发电机,中国:CN203702438[P].2014-07-09.(Wang Tao,Wang Tian-ze.A kind of cylinder buoy wave generator,China:CN203702438[P].2014-07-09.)
[6]郭显成,苏毅.漂浮式微型波力发电装置传动系统的速度分析与调节[J].后勤工程学院学报,2014,30(5):80-85.(Guo Xian-cheng,Su Yi.Velocity analysis and adjustment of floating micro-type wave power generation transmission system[J].Journal of Logistical Engineering University,2014,30(5):80-85.)
[7]潘运平,颜为光.振动的等效力传递路径分析方法研究[J].机械设计与制造,2018,11(1):36-37.(Pan Yun-ping,Yan Wei-guang.Research on vibration’s equivalent forces transfer path analysis method[J].Machinery Design&Manufacture,2018,11(1):36-37.)
[8]李向红,崔文良.倒置数学摆在海洋发电中的应用研究[J].动力学与控制学报,2009,7(3):252-257.(Li Xiang-hong,Cui Wen-liang.The study on the applications of an inverted pendulum on ocean-wave generating[J].Journal of Dynamics and Control,2009,7(3):252-257.)
[9]Cao Q,Xu L,Djidjeli K.Analysis of period-doubling and chaos of a nonsymmetric oscillator with piecewise-linearity[J].Chaos Solitons&Fractals,2001,12(10):1917-1927.
[2]程阳,李英.波浪发电装置浮筒的动力特性及参数研究[J].海洋技术学报,2015(1):014.(Cheng Yang,Li Ying.Study on the hydrodynamic characteristics and oarameters of wave energy converters[J].Ocean Technology,2015(1):014.)
[3]张皓然,杨绍辉.海洋波浪能发电装置综述[A].第二届中国海洋可再生能源发展年会暨论坛,2013.(Zhang Hao-ran,Yang Shao-hui.Review of ocean wave power plant[A].Second China Ocean Renewable Energy Development Conference and Forum,2013.)
[4]郑崇伟,李训强.基于WAVEWATCH-III模式的近22年中国海波浪能资源评估[J].中国海洋大学学报:自然科学版,2011,41(11):5-12.(Zheng Chong-wei,Li Xun-qiang.Wave energy resources assessment in the China sea during the last 22 years by using WAVEWATCH-III wave model[J].Periodical of Ocean University of China,2011,41(11):5-12.)
[5]王涛,王天泽.一种圆筒浮标式海浪发电机,中国:CN203702438[P].2014-07-09.(Wang Tao,Wang Tian-ze.A kind of cylinder buoy wave generator,China:CN203702438[P].2014-07-09.)
[6]郭显成,苏毅.漂浮式微型波力发电装置传动系统的速度分析与调节[J].后勤工程学院学报,2014,30(5):80-85.(Guo Xian-cheng,Su Yi.Velocity analysis and adjustment of floating micro-type wave power generation transmission system[J].Journal of Logistical Engineering University,2014,30(5):80-85.)
[7]潘运平,颜为光.振动的等效力传递路径分析方法研究[J].机械设计与制造,2018,11(1):36-37.(Pan Yun-ping,Yan Wei-guang.Research on vibration’s equivalent forces transfer path analysis method[J].Machinery Design&Manufacture,2018,11(1):36-37.)
[8]李向红,崔文良.倒置数学摆在海洋发电中的应用研究[J].动力学与控制学报,2009,7(3):252-257.(Li Xiang-hong,Cui Wen-liang.The study on the applications of an inverted pendulum on ocean-wave generating[J].Journal of Dynamics and Control,2009,7(3):252-257.)
[9]Cao Q,Xu L,Djidjeli K.Analysis of period-doubling and chaos of a nonsymmetric oscillator with piecewise-linearity[J].Chaos Solitons&Fractals,2001,12(10):1917-1927.