Research and analysis of an energy harvester of piezoelectric cantilever beam based on nonlinear magnetic action

2022 ◽  
Vol 93 (1) ◽  
pp. 015001
Author(s):  
Xiangfeng Gu ◽  
Lipeng He ◽  
Gang Yu ◽  
Lei Liu ◽  
Jianwen Zhou ◽  
...  
Keyword(s):  
Cantilever Beam ◽  
Energy Harvester ◽  
Piezoelectric Cantilever ◽  
Magnetic Action

Performance Analysis for a Wave Energy Harvester of Piezoelectric Cantilever Beam

2019 ◽  
Vol 83 (sp1) ◽  
pp. 976
Author(s):  
Ming Liu ◽  
Hengxu Liu ◽  
Hailong Chen ◽  
Yuanchao Chai ◽  
Liquan Wang
Keyword(s):  
Performance Analysis ◽  
Cantilever Beam ◽  
Wave Energy ◽  
Energy Harvester ◽  
Piezoelectric Cantilever

A self-tunable wind energy harvester utilising a piezoelectric cantilever beam with bluff body under transverse galloping for field deployment

2021 ◽  
Vol 245 ◽  
pp. 114559
Author(s):  
Yee Yan Lim ◽  
Ricardo Vasquez Padilla ◽  
Andreas Unger ◽  
Rodrigo Barraza ◽  
Ahmed Mostafa Thabet ◽  
...  
Keyword(s):  
Wind Energy ◽  
Cantilever Beam ◽  
Bluff Body ◽  
Energy Harvester ◽  
Piezoelectric Cantilever ◽  
Field Deployment ◽  
Transverse Galloping

Nonlinear Dynamics of a Special Piezoelectric Energy Harvester With a Special Bistable Piezoelectric Cantilever Beam

2018 ◽  
Author(s):  
Ming Hui Yao ◽  
Wei Xia ◽  
Wei Zhang ◽  
Jian Yu Jiao
Keyword(s):  
Permanent Magnet ◽  
Cantilever Beam ◽  
Piezoelectric Layer ◽  
Magnetic Force ◽  
Energy Harvester ◽  
Excitation Frequency ◽  
High Energy ◽  
Nonlinear Phenomenon ◽  
Piezoelectric Energy ◽  
Piezoelectric Cantilever

This paper presents a special piezoelectric energy harvester system which is obtained by separating the end of the upper piezoelectric layer of the traditional piezoelectric cantilever beam from its basic layer. A mass I is located at the end of the separated upper piezoelectric layer (SUPL), a mass II and a permanent magnet I are located at the end of the separated lower piezoelectric beam (SLPB) and a permanent magnet II is added in the opposite position of the permanent magnet I and they face each other with same polarities. A nonlinear magnetic force which can broaden the frequency bandwidth of the system is generated mutually on the two permanent magnets. Studies find that this special piezoelectric energy harvester has extremely high energy capture efficiency. In order to further explore the reason of high efficiency, experimental research on its dynamic behavior is carried out. The experimental results show that the vibrations of the SUPL and the SLPB are relatively simple. The dynamic behaviors of the SUPL, the SLPB and the unseparated part are different. The unseparated part of the piezoelectric shows relatively complex nonlinear phenomenon due to the interaction of nonlinear magnetic force and the collision. With the increase of the external excitation frequency, period doubling motion and almost periodic motion appear alternately.

Experimental study on broadband bistable energy harvester with L-shaped piezoelectric cantilever beam

2020 ◽  
Vol 36 (3) ◽  
pp. 557-577 ◽  
Author(s):  
Minghui Yao ◽  
Pengfei Liu ◽  
Li Ma ◽  
Hongbo Wang ◽  
Wei Zhang
Keyword(s):  
Experimental Study ◽  
Cantilever Beam ◽  
Energy Harvester ◽  
Piezoelectric Cantilever ◽  
Bistable Energy Harvester

scholarly journals Energy Harvesting from Piezoelectric Cantilever Beam with Different Shapes

2019 ◽  
Vol 8 (4) ◽  
pp. 6332-6337
Keyword(s):  
Energy Harvesting ◽  
Cantilever Beam ◽  
Energy Harvester ◽  
Mechanical Vibration ◽  
Power Source ◽  
Microelectronic Devices ◽  
Piezoelectric Energy ◽  
Piezoelectric Cantilever ◽  
Different Shapes ◽  
Continuous Power

This paper reviews the piezoelectric energy harvesting from mechanical vibration. The recent development in the microelectronic devices and wireless sensor networks (WSNs) requires continuous power source for better performance. Many researchers have been done to develop a permanent portable power source for microelectronic devices. Micro energy harvesting (MEH) consists of two basic elements; freely available energy and transducer. Energy is everywhere around us in different forms. The energy conversion ability of piezoelectric energy harvester is high among different MEH techniques. A cantilever type piezoelectric energy harvester under different shapes is mostly studied in the last few years. The output of piezoelectric harvester depends upon the deflection produced, more deflection led to more electrical output. The deflection in cantilever beam under different shapes is different. This review paper presents a comparison of different piezoelectric cantilever beam shapes and output generated analyzed in the last decade.

The Experimental Study on a Bistable Piezoelectric-Electromagnetic Combined Vibration Energy Harvester

2017 ◽  
Author(s):  
Ming Hui Yao ◽  
Peng Fei Liu ◽  
Wei Zhang ◽  
Dong Xing Cao
Keyword(s):  
Power Generation ◽  
Cantilever Beam ◽  
Nonlinear Dynamic ◽  
Energy Harvester ◽  
Maximum Output ◽  
Frequency Bandwidth ◽  
Effective Frequency ◽  
Generation Efficiency ◽  
Dynamic Behaviors ◽  
Piezoelectric Cantilever

This paper presents an experimental investigation on the bistable piezoelectric electromagnetic combined energy harvester based on vibration. The end of the piezoelectric cantilever beam has a tip magnet. The opposite of the piezoelectric cantilever beam has a coil, a spring and a magnet. The power generation efficiency and dynamic behaviors for three different kinds of the piezoelectric cantilever beam structures are experimentally studied, such as the conventional piezoelectric cantilever beam, the bistable piezoelectric cantilever beam introduced spring and magnet, and the bistable piezoelectric cantilever beam introduced spring, magnet and coil. Experimental results show that the introduction of the spring and magnet improves the maximum output voltage and broaden the effective frequency bandwidth. The power generation efficiency of the system is improved by adding the coil. Complicated nonlinear dynamic behaviors occur in the system, when the spring and the magnet are introduced. These nonlinear dynamic behaviors broaden the effective frequency bandwidth.

scholarly journals Experimental Research on Wind-Induced Flag-Swing Piezoelectric Energy Harvesters

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Jianjun Liu ◽  
Xianghua Chen ◽  
Yujie Chen ◽  
Hong Zuo ◽  
Qun Li
Keyword(s):  
Energy Harvesting ◽  
Cantilever Beam ◽  
Wind Field ◽  
Electromechanical Coupling ◽  
Energy Harvester ◽  
Coupling Effect ◽  
Green Energy ◽  
External Resistance ◽  
Piezoelectric Energy ◽  
Piezoelectric Cantilever

Piezoelectric cantilever beams, which have simple structures and excellent mechanical/electrical coupling characteristics, are widely applied in energy harvesting. When the piezoelectric cantilever beam is in a wind field, we should consider not only the influence of the wind field on piezoelectric beam but also the electromechanical coupling effect on it. In this paper, we design and test a wind-induced flag-swing piezoelectric energy harvester (PEH). The piezoelectric cantilever beam may vibrate in the wind field by affixing a flexible ribbon to the free end as the windward structure. To fulfill the goal of producing electricity, the flexible ribbon can swing the piezoelectric cantilever in a wind-induced unstable condition. The experimental findings demonstrate that the flag-swing PEH performs well in energy harvesting when the wind field is excited. When the wind speed is 15 m/s, the peak-to-peak output AC voltage may reach 13.88 V. In addition, the voltage at both ends of the closed-loop circuit’s external resistance is examined. The maximum electric power of the PEH may reach 43.4 μW with an external resistance of 650 kΩ. After passing through the AC-DC conversion circuit, the flag-swing PEH has a steady DC voltage output of 1.67 V. The proposed energy harvester transforms wind energy from a wind farm into electrical energy for supply to low-power electronic devices, allowing for the creation and use of green energy to efficiently address the issue of inadequate energy.

Hysteretic Nonlinear Characteristics and Stochastic Bifurcation of Cantilevered Piezoelectric Energy Harvester

2013 ◽  
Vol 479-480 ◽  
pp. 348-352
Author(s):  
Jia Xu ◽  
Zhi Wen Zhu
Keyword(s):  
Hopf Bifurcation ◽  
Probability Density Function ◽  
Probability Density ◽  
Cantilever Beam ◽  
Energy Harvester ◽  
Stochastic Bifurcation ◽  
Nonlinear Characteristics ◽  
Piezoelectric Energy ◽  
Piezoelectric Cantilever ◽  
Stochastic Hopf Bifurcation

Hysteretic nonlinear characteristics and stochastic bifurcation of cantilevered piezoelectric energy harvester was studied in this paper. Piezoelectric ceramics was adhesively bonded on the substrate of cantilever beam to make piezoelectric cantilever beam. Von de Pol difference item was introduced to interpret the hysteretic phenomena of piezoelectric ceramics, and then the nonlinear dynamic model of piezoelectric cantilever beam subjected to axial stochastic excitation was developed. The stochastic stability of the system was analyzed, and the steady-state probability density function and the joint probability density function of the dynamic response of the system were obtained. Finally, the conditions of stochastic Hopf bifurcation were determined. Numerical simulation shows that stochastic Hopf bifurcation appears when bifurcation parameter varies, which can increase vibration amplitude of cantilever beam system and improve the efficiency of piezoelectric energy harvester. The results of this paper are helpful to application of cantilevered piezoelectric energy harvester in engineering fields.

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