Piezoelectric Energy Harvesting Using a Clamped Circular Plate: Experimental Study

Aerospace ◽  
2003 ◽  
Author(s):  
Sunghwan Kim ◽  
William W. Clark ◽  
Qing-Ming Wang
Keyword(s):  
Energy Harvesting ◽  
Circular Plate ◽  
Energy Generation ◽  
Piezoelectric Energy Harvesting ◽  
Piezoelectric Energy ◽  
Plate Elements ◽  
Poling Direction ◽  
Electrical Devices ◽  
Piezoelectric Elements ◽  
Generation Theory

Energy harvesting using piezoelectric material is not a new concept, but its small generation capability has not been attractive for mass energy generation. For this reason, little research has been done on the topic. Recently, wearable computer concepts, as well as small portable electrical devices, are a few motivations that have reignited the study of piezoelectric energy harvesting. The theory behind cantilever type piezoelectric elements is well known, but the transverse moving circular plate elements, which can be used in pressure type energy generation is not yet fully developed. The power generation in a circular plate depends on several factors. Among them, the poling direction and the stress distribution is important as shown in previous research. Specifically, it has been shown theoretically that grouping electrodes and repoling some of the regrouped segments can lead to optimized energy harvesting in a clamped circular plate structure. This paper provides experimental validation of those results. In this paper, three circular plate piezoelectric energy generators (PEG), one unmodified and two different regrouped unimorph PEGs, were used to support the regrouped PEG energy generation theory. The experimental results of regrouped PEGs will be presented with an eye toward guidelines for design of a useful energy harvesting structure.

An Improved Tunable Piezoelectric Energy Harvesting Structure Based on d33 Mode Coupling

2015 ◽  
Vol 1092-1093 ◽  
pp. 136-140
Author(s):  
Yang Zhao ◽  
Kun Peng Wang ◽  
Ying Tai Li ◽  
Ming Jie Guan
Keyword(s):  
Energy Harvesting ◽  
Theoretical Analysis ◽  
Mode Coupling ◽  
Frequency Variation ◽  
Piezoelectric Energy Harvesting ◽  
Piezoelectric Energy ◽  
Piezoelectric Elements ◽  
Piezoelectric Harvester

This research proposes an improved tunable piezoelectric harvester structure which is constructed by a cantilever base beam and piezoelectric elements working in d33 mode. Our previous work on tunable piezoelectric harvester structure showed a frequency variation ratio of 3.17% with piezoelectric elements working in d31mode coupling. In this work, by changing the working mode of the piezoelectric elements from d31 to d33 mode, the frequency variation ratio was shown to be much higher. Theoretical analysis of the improved structure was investigated and verified with simulations. The results showed that the d33 mode coupling surpasses the d31 mode coupling with a frequency variation ratio of 29.74%.

scholarly journals Study of a Piezoelectric Energy Harvesting Floor Structure with Force Amplification Mechanism

Energies ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 3516 ◽  
Author(s):  
He ◽  
Wang ◽  
Zhong ◽  
Guan
Keyword(s):  
Energy Harvesting ◽  
Output Power ◽  
Piezoelectric Energy Harvesting ◽  
Step Frequency ◽  
Peak Voltage ◽  
Piezoelectric Energy ◽  
Piezoelectric Beam ◽  
Piezoelectric Elements ◽  
Floor Structure ◽  
Amplification Mechanism

This paper proposes a novel energy harvesting floor structure using piezoelectric elements for converting energy from human steps into electricity. The piezoelectric energy harvesting structure was constructed by a force amplification mechanism and a double-layer squeezing structure in which piezoelectric beams were deployed. The generated electrical voltage and output power were investigated in practical conditions under different strokes and step frequencies. The maximum peak-to-peak voltage was found to be 51.2 V at a stroke of 5 mm and a step frequency of 1.81 Hz. In addition, the corresponding output power for a single piezoelectric beam was tested to be 134.2 μW, demonstrating the potential of harvesting energy from the pedestrians for powering low-power electronic devices.

Circuit Development of Piezoelectric Energy Harvesting Device for Recharging Solid-State Batteries

2012 ◽  
Author(s):  
Yuejuan Li ◽  
Marvin H. Cheng ◽  
Ezzat G. Bakhoum
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Energy Harvesting ◽  
Electrical Energy ◽  
Piezoelectric Energy Harvesting ◽  
Power Sources ◽  
Piezoelectric Energy ◽  
Piezoelectric Elements ◽  
Volume Energy ◽  
Solid State Batteries

Piezoelectric devices have been widely used as a means of transforming ambient vibrations into electrical energy that can be stored and used to power other devices. This type of power generation devices can provide a convenient alternative to traditional power sources used to operate certain types of sensors/actuators, MEMS devices, and microprocessor units. However, the amount of energy produced by these devices is in many cases far too small to directly power an electrical device. Therefore, much of the research into power harvesting has focused on methods of accumulating the energy until a sufficient amount is present, allowing the intended electronics to be powered. Due to the tiny amount of harvestable power from a single device, it is critical to collect vibration energy efficiently. Many research groups have developed various methods to operate the harvesting devices at their resonant frequencies for maximal amount of energy. Different techniques of conversion circuits are also investigated for efficient transformation from mechanical vibration to electrical energy. However, efforts have not been made to the analysis of array configuration of energy harvesting elements. Poor combination of piezoelectric elements, such as phase difference, cannot guarantee the increasing amount of harvested energy. To realize a piezoelectric energy-harvesting device with higher volume energy density, the energy conversion efficiencies of different array configurations were investigated. In the present study, various combinations of piezoelectric elements were analyzed to achieve higher volume energy density. A charging circuit for solid-state batteries with planned energy harvesting strategy was also proposed. With the planned harvesting strategy, the required charging time can be estimated. Thus, the applicable applications can be clearly identified. In this paper, optimal combination of piezoelectric cantilevers and different modes of charging methods were investigated. The results provide a means of choosing the piezoelectric device to be used and estimate the amount of time required to recharge a specific capacity solid-state battery.

Study on a Novel Tunable Piezoelectric Energy Harvesting Structure

2013 ◽  
Vol 475-476 ◽  
pp. 515-519 ◽  
Author(s):  
Ming Jie Guan ◽  
Ying Tai Li ◽  
Yang Zhao
Keyword(s):  
Energy Harvesting ◽  
Resonant Frequency ◽  
Frequency Variation ◽  
Piezoelectric Energy Harvesting ◽  
Beam Structure ◽  
Piezoelectric Energy ◽  
Electrical Boundary Conditions ◽  
Structure Changes ◽  
Piezoelectric Elements ◽  
Piezoelectric Harvester

This research proposes a novel piezoelectric harvester structure which is constructed by a cantilever base beam and piezoelectric elements bonded with the base beam in a certain manner. By changing the electrical boundary conditions of the piezoelectric elements, the resonant frequency of the beam structure changes accordingly. Two kinds of manners in which piezoelectric elements are bonded with the beam are investigated and compared with ANSYS simulations and experiments. The results showed that the embedded manner surpasses the surface-bonded manner with the frequency variation ratio of 3.17%.

scholarly journals Design of Piezoelectric Tile for Energy Harvesting: Experimental Approach

2021 ◽  
Vol 10 (2) ◽  
pp. 83-89
Author(s):  
Ehsan Maani Miandoab ◽  
Amir Hossein Jafari ◽  
Aref Valipour
Keyword(s):  
Power Generation ◽  
Energy Harvesting ◽  
Piezoelectric Material ◽  
External Force ◽  
Experimental Approach ◽  
Electrical Circuit ◽  
Piezoelectric Energy Harvesting ◽  
Piezoelectric Energy ◽  
Higher Power ◽  
Piezoelectric Elements

The generation of electricity by renewable energies is an important need of today's society. Piezoelectric energy harvesting is one of these useful technologies which can generate electricity by applying external force on piezoelectric material. This study illustrates more power generation from piezoelectric tile by changing the situation of piezo discs and connect to proportional electrical circuit. Two different designs of piezoelectric tile are presented by performing experimental analyses. The experimental results showed that placing piezoelectric elements in a bending position leads to higher power generation in comparison with traditional flat positioning, which was approximately 78 times far superior. It is also revealed that by design of an electrical circuit, the tile can be advantageous for lighting in crowded sidewalks with required lighting time. The results of this paper can be beneficial in the design and fabrication of these tiles for different applications.

Investigation of efficient piezoelectric energy harvesting from impulsive force

2020 ◽  
Vol 59 (SP) ◽  
pp. SPPD04
Author(s):  
S. Aphayvong ◽  
T. Yoshimura ◽  
S. Murakami ◽  
K. Kanda ◽  
N. Fujimura
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Energy Harvesting ◽  
Impulsive Force ◽  
Piezoelectric Energy

scholarly journals Piezoelectric Energy Harvesting Solutions: A Review

Sensors ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 3512 ◽  
Author(s):  
Corina Covaci ◽  
Aurel Gontean
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Effect ◽  
Piezoelectric Transducers ◽  
Piezoelectric Energy Harvesting ◽  
Piezoelectric Energy ◽  
Direct Piezoelectric Effect ◽  
Harvesting Technique ◽  
Different Shapes ◽  
Piezoelectric Devices ◽  
Review Current

The goal of this paper is to review current methods of energy harvesting, while focusing on piezoelectric energy harvesting. The piezoelectric energy harvesting technique is based on the materials’ property of generating an electric field when a mechanical force is applied. This phenomenon is known as the direct piezoelectric effect. Piezoelectric transducers can be of different shapes and materials, making them suitable for a multitude of applications. To optimize the use of piezoelectric devices in applications, a model is needed to observe the behavior in the time and frequency domain. In addition to different aspects of piezoelectric modeling, this paper also presents several circuits used to maximize the energy harvested.

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