基于脉冲液流换能器的振动能量回收原理与实验研究
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摘要
针对自供电磁流变阻尼调节系统的能量供给问题,提出基于脉冲液流换能器的振动能量回收方法,通过振动能-液流能-机械能-电能的变换,实现振动能量回收。建立了基于齿轮马达、飞轮和永磁发动机的脉冲液流换能器分析模型,利用Matlab软件对正弦振动下换能器的电压输出特性、功率转换特性和转换效率进行仿真。为验证理论分析的正确性,设计制作了基于脉冲液流换能器的振动能量回收装置,利用J95-I减振器测试台上对振动能量回收装置实验测试,比较了正弦激励条件下换能器的理论电压特性与实测电压特性、理论转换效率与实验转换效率。实验研究表明,脉冲液流换能器是能够实现振动能量的转换,在带30Ω负载情况下,效率可以达到46.85%,平均输出功率可以达到37.4 W。
To solve the energy supply problem of a self-powered Magneto-rheological damping modulator system,a vibration energy harvesting system based on a pulse fluid flow transducer was presented.Through a conversion of vibration energy-fluid flow energy-mechanical energy-electrical energy,vibration energy harvesting was realized.An analysis model of a pulse fluid flow transducer composed of a gear motor,a flywheel and a permanent magnet generator was built.The output voltage,power conversion and conversion efficiency of the pulse fluid flow transducer were simulated via Matlab software under the condition of sinusoideal excitation.In order to verify the rationality of the theoretical analysis,a vibration energy harvesting system based on the pulse fluid flow transducer was designed and fabricated.The vibration energy harvesting system was tested with a J95-I type shock absorber test-table.Under the sinusoidal excitation condition,the theoretical voltage characteristics of the transducer were compared with those from tests,and the theoretical efficiencies were compared with the test ones.It was shown that the puls-fluid flow transducer can relize vibration energy harvesting;the energy conversion efficiency reaches 48.65% and the average output power reaches 37.4 watt under the condition of 30 ohm load.
To solve the energy supply problem of a self-powered Magneto-rheological damping modulator system,a vibration energy harvesting system based on a pulse fluid flow transducer was presented.Through a conversion of vibration energy-fluid flow energy-mechanical energy-electrical energy,vibration energy harvesting was realized.An analysis model of a pulse fluid flow transducer composed of a gear motor,a flywheel and a permanent magnet generator was built.The output voltage,power conversion and conversion efficiency of the pulse fluid flow transducer were simulated via Matlab software under the condition of sinusoideal excitation.In order to verify the rationality of the theoretical analysis,a vibration energy harvesting system based on the pulse fluid flow transducer was designed and fabricated.The vibration energy harvesting system was tested with a J95-I type shock absorber test-table.Under the sinusoidal excitation condition,the theoretical voltage characteristics of the transducer were compared with those from tests,and the theoretical efficiencies were compared with the test ones.It was shown that the puls-fluid flow transducer can relize vibration energy harvesting;the energy conversion efficiency reaches 48.65% and the average output power reaches 37.4 watt under the condition of 30 ohm load.
引文
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[3]汪治昊,陈政清.基于自供电磁流变阻尼器的隔震高架桥半主动控制[J].地震工程与工程振动,2010,30(1):126-133.WANG Zhi-hao,CHEN Zheng-qing.Semi-active control of isolated elevated highway bridge with self-powered MR damper[J].Journal of Earthquake Engineering and Engineering Vibration,2010,30(1):126-133.
[4]Choi S B,Seong M S,Kim K S.Vibration control of an electro-rheological fluid based suspension system with an energy regenerative mechanism[J].Journal of Automobile Engineering,2009,223(4):459-469.
[5]孙作玉,程树良,王焕定.隔震换能系统的换能效率及振动控制效果研究[J].工程力学,2005,22(2):132-136.SUN Zuo-yu,CHENG Shu-liang,WANG Huan-ding.Study on energy transition efficiency and control effect of base-isolated structure with transducer[J].Journal of EngineeringMechanics,2005,22(2):132-136.
[6]程树良,王焕定,孙作玉.隔震换能系统换能效果实验研究[J].工程力学,2006,23(11):38-44.CHENG Shu-liang,WANG Huan-ding,SUN Zuo-yu.Experimental study on effect of energy transition of base-isolation with energy transducer system[J].Journal of Engineering Mechanics,2006,23(11):38-44.
[7]Xu L,Guo X X.Hydraulic transmission electromagnetic energy-regenerative active suspension and its working principle[C].Second Global Congress on Intelligent System,2010:58-61.
[8]徐琳.汽车液电馈能式减振器研究[D].武汉:武汉理工大学,2011.
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