scholarly journals Stochastic resonance mechanism for wideband and low frequency vibration energy harvesting based on piezoelectric cantilever beams

2011 ◽  
Vol 60 (7) ◽  
pp. 074301
Author(s):  
Chen Zhong-Sheng ◽  
Yang Yong-Min
Keyword(s):  
Energy Harvesting ◽  
Stochastic Resonance ◽  
Low Frequency ◽  
Vibration Energy ◽  
Cantilever Beams ◽  
Vibration Energy Harvesting ◽  
Resonance Mechanism ◽  
Low Frequency Vibration ◽  
Piezoelectric Cantilever

Research on Piezoelectric Generators for Vibration Energy Harvesting

2015 ◽  
Vol 757 ◽  
pp. 171-174
Author(s):  
Kai Zhou ◽  
Fang Xie ◽  
Yi Tao ◽  
Hai Xia Du
Keyword(s):  
Wireless Networks ◽  
Energy Harvesting ◽  
Low Frequency ◽  
Vibration Energy ◽  
Small Scale ◽  
Vibration Energy Harvesting ◽  
Low Frequency Vibration ◽  
Piezoelectric Cantilever ◽  
Study Results ◽  
Generation Capacity

Ambient energy harvesting has been in recent years the recurring object of a number of research efforts aimed at providing an autonomous solution to the powering of small scale electronic mobile devices. Among the different solutions, vibration energy harvesting has played a major role due to the almost universal presence of mechanical vibrations. In the paper, a piezoelectric cantilever device for harvesting the ambient low-frequency vibration energy is designed, and influences of its structure on output voltage and power generation capacity are studied also. The study results show that the piezoelectric cantilever can produce enough power energy which meets the operation requirements of sensors in wireless networks. It provides a method and corresponding theoretical basis for the harvesting of ambient low-frequency vibration energy and the design of self-supply devices for sensors in wireless networks.

A piezoelectric spring pendulum oscillator used for multi-directional and ultra-low frequency vibration energy harvesting

2018 ◽  
Vol 231 ◽  
pp. 600-614 ◽  
Author(s):  
Yipeng Wu ◽  
Jinhao Qiu ◽  
Shengpeng Zhou ◽  
Hongli Ji ◽  
Yang Chen ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Low Frequency ◽  
Vibration Energy ◽  
Vibration Energy Harvesting ◽  
Low Frequency Vibration

A MEMS-Based Piezoelectric Power Generator for Low Frequency Vibration Energy Harvesting

2006 ◽  
Vol 23 (3) ◽  
pp. 732-734 ◽  
Author(s):  
Fang Hua-Bin ◽  
Liu Jing-Quan ◽  
Xu Zheng-Yi ◽  
Dong Lu ◽  
Chen Di ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Low Frequency ◽  
Vibration Energy ◽  
Vibration Energy Harvesting ◽  
Power Generator ◽  
Low Frequency Vibration

Hybrid nanogenerators for low frequency vibration energy harvesting and self-powered wireless locating

2018 ◽  
Vol 5 (1) ◽  
pp. 015510 ◽  
Author(s):  
Ying Yuan ◽  
Hulin Zhang ◽  
Jie Wang ◽  
Yuhang Xie ◽  
Saeed Ahmed Khan ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Low Frequency ◽  
Vibration Energy ◽  
Vibration Energy Harvesting ◽  
Low Frequency Vibration ◽  
Self Powered

scholarly journals Improving functionality of vibration energy harvesters using magnets

2012 ◽  
Vol 23 (13) ◽  
pp. 1433-1449 ◽  
Author(s):  
Lihua Tang ◽  
Yaowen Yang ◽  
Chee-Kiong Soh
Keyword(s):  
Experimental Study ◽  
Energy Harvesting ◽  
Transition Region ◽  
Parametric Study ◽  
Low Frequency ◽  
Design Guidelines ◽  
Vibration Energy ◽  
Vibration Energy Harvesting ◽  
Energy Harvesters ◽  
Low Frequency Vibration

In recent years, several strategies have been proposed to improve the functionality of energy harvesters under broadband vibrations, but they only improve the efficiency of energy harvesting under limited conditions. In this work, a comprehensive experimental study is conducted to investigate the use of magnets for improving the functionality of energy harvesters under various vibration scenarios. First, the nonlinearities introduced by magnets are exploited to improve the performance of vibration energy harvesting. Both monostable and bistable configurations are investigated under sinusoidal and random vibrations with various excitation levels. The optimal nonlinear configuration (in terms of distance between magnets) is determined to be near the monostable-to-bistable transition region. Results show that both monostable and bistable nonlinear configurations can significantly outperform the linear harvester near this transition region. Second, for ultra-low-frequency vibration scenarios such as wave heave motions, a frequency up-conversion mechanism using magnets is proposed. By parametric study, the repulsive configuration of magnets is found preferable in the frequency up-conversion technique, which is efficient and insensitive to various wave conditions when the magnets are placed sufficiently close. These findings could serve as useful design guidelines when nonlinearity or frequency up-conversion techniques are employed to improve the functionality of vibration energy harvesters.

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