Journal articles: 'Piezoelectric energy'

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Zengtao Yang and Jiashi Yang. "Connected Vibrating Piezoelectric Bimorph Beams as a Wide-band Piezoelectric Power Harvester." Journal of Intelligent Material Systems and Structures 20, no. 5 (November 28, 2008): 569–74. http://dx.doi.org/10.1177/1045389x08100042.

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We analyze coupled flexural vibration of two elastically and electrically connected piezoelectric beams near resonance for converting mechanical vibration energy to electrical energy. Each beam is a so-called piezoelectric bimorph with two layers of piezoelectrics. The 1D equations for bending of piezoelectric beams are used for a theoretical analysis. An exact analytical solution to the beam equations is obtained. Numerical results based on the solution show that the two resonances of individual beams can be tuned as close as desired by design when they are connected to yield a wide-band electrical output. Therefore, the structure can be used as a wide-band piezoelectric power harvester.

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Uchino, Kenji. "Piezoelectric Devices in the Sustainable Society." Sustainability in Environment 4, no. 4 (September 11, 2019): p181. http://dx.doi.org/10.22158/se.v4n4p181.

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Our 21st century faces to a “sustainable society”, which enhances (a) usage of non-toxic materials, (b) disposal technology for existing hazardous materials, (c) reduction of contamination gas, (d) environmental monitoring system, (e) new energy source creation, and (f) energy-efficient device development in the piezoelectric area. With reducing their size, the electromagnetic components reduce their efficiency drastically. Thus, piezoelectric transducers with much less losses are highly sought recently. Piezoelectric devices seem to be all-around contributors and a key component to the above mentioned five R&D areas. Some of the efforts include: (a) Since the most popular piezoelectric lead zirconate titante ceramics will be regulated in European and Asian societies due to their toxicity (Pb2+ ion), lead-free piezoelectrics have been developed. (b) Since hazardous organic substances can easily be dissolved by the ultrasonic irradiation in water, a new safe disposal technology using piezoelectric transducers has been developed. (c) We demonstrated an energy recovery system on a hybrid car from its engine’s mechanical vibration to the rechargeable battery. (d) Micro ultrasonic motors based on piezoelectrics demonstrated 1/20 reduction in the volume and a 20-time increase in efficiency of the conventional electromagnetic motors. This paper introduces leading piezoelectric materials, devices, and drive/control methods, relating with the above “sustainability” technologies, aiming at further research expansion in this area.

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Mohammadi, S., and M. Abdalbeigi. "Analytical Optimization of Piezoelectric Circular Diaphragm Generator." Advances in Materials Science and Engineering 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/620231.

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This paper presents an analytical study of the piezoelectric circular diaphragm microgenerator using strain energy method. Piezoelectrics are the intelligent materials that can be used as transducer to convert mechanical energy into electrical energy and vice versa. The aim of this paper is to optimize produced electrical energy from mechanical pressure. Therefore, the circular metal plate equipped with piezoelectric circular patch has been considered with simply and clamped supports. A comprehensive modeling, parametrical study and the effect of the boundary conditions on the performance of the microgenerator have been investigated. The system is under variable pressure from an oscillating pressure source. Results are presented for PZT and PMN-PT piezoelectric materials with steel and aluminum substrates. An optimal value for the radius and thickness of the piezoelectric layer with a special support condition has been obtained.

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Rudresha K J, Rudresha K. J., and Girisha G. K. Girisha G K. "Energy Harvesting Using Piezoelectric Materials on Microcantilevr Structure." International Journal of Scientific Research 2, no. 5 (June 1, 2012): 252–55. http://dx.doi.org/10.15373/22778179/may2013/84.

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Cook-Chennault, Kimberly Ann, Nithya Thambi, Mary Anne Bitetto, and E. B. Hameyie. "Piezoelectric Energy Harvesting." Bulletin of Science, Technology & Society 28, no. 6 (December 2008): 496–509. http://dx.doi.org/10.1177/0270467608325374.

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Howells, Christopher A. "Piezoelectric energy harvesting." Energy Conversion and Management 50, no. 7 (July 2009): 1847–50. http://dx.doi.org/10.1016/j.enconman.2009.02.020.

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Parinov, Ivan A., and Alexander V. Cherpakov. "Overview: State-of-the-Art in the Energy Harvesting Based on Piezoelectric Devices for Last Decade." Symmetry 14, no. 4 (April 7, 2022): 765. http://dx.doi.org/10.3390/sym14040765.

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Technologies of energy harvesting have been developed intensively since the beginning of the twenty-first century, presenting themselves as alternatives to traditional energy sources (for instance, batteries) for small-dimensional and low-power electronics. Batteries have numerous shortcomings connected, for example, with restricted service life and the necessity of periodic recharging/replacement that create significant problems for portative and remote devices and for power equipment. Environmental energy covers solar, thermal, and oscillation energy. By this, the vibration energy exists continuously around us due to the operation of numerous artificial structures and mechanisms. Different materials (including piezoelectrics) and conversion mechanisms can transform oscillation energy into electrical energy for use in many devices of energy harvesting. Piezoelectric transducers possessing electric mechanical coupling and demonstrating a high density of power in comparison with electromagnetic and electrostatic sensors are broadly applied for the generation of energy from different oscillation energy sources. For the last decade, novel piezoelectric materials, transformation mechanisms, electrical circuits, and experimental and theoretical approaches with results of computer simulation have been developed for improving different piezoelectric devices of energy harvesting. This overview presents results, obtained in the area of piezoelectric energy harvesting for the last decade, including a wide spectrum of experimental, analytical, and computer simulation investigations.

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Camargo-Chávez, J. E., S. Arceo-Díaz, E. E. Bricio-Barrios, and R. E. Chávez-Valdez. "Piezoelectric mathematical modeling; technological feasibility in the generation and storage of electric charge." Journal of Physics: Conference Series 2159, no. 1 (January 1, 2022): 012009. http://dx.doi.org/10.1088/1742-6596/2159/1/012009.

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Abstract Emerging technologies are efficient alternatives for satisfying the growing demand for sustainable and cheap energy sources. Piezoelectrics are one of the most promising energy sources derived from emerging technologies. These materials are capable of converting mechanical energy into electricity or vice versa. Piezoelectrics have been used for almost a hundred years to generate electrical and sound pulses. However, the use of piezoelectrics for power generation is constrained by the cost associated with equipment and infrastructure. This problem has been addressed through mathematical models that relate the physical and electrical properties of the piezoelectric material with the voltage generated. Although these models have high performance, they do not incorporate voltage rectification and electrical charge storage stages. This work presents a mathematical model that describes the relationship of the physical and electromechanical properties of a system employing a piezoelectric for energy generation. The voltage of the system and the charge stored in a capacitor are calculated through this model. Also, contour diagrams are presented as a tool for facilitating the efficiency of energy generation.

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Yazib, M. S. A., N. Saudin, M. A. Mohamed, N. A. M. Affendi, L. Mohamed, and H. Mohamed. "Comparative study of vibration energy harvesting on home appliances using piezoelectric energy harvester." Journal of Physics: Conference Series 2550, no. 1 (August 1, 2023): 012006. http://dx.doi.org/10.1088/1742-6596/2550/1/012006.

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Abstract This project was developed to harvest vibration energy using a piezoelectric energy harvester. The availability of home appliance vibration energy is a promising solution to get clean energy resources to manipulate wasted energy. When the appliances’ vibration hits the piezoelectric energy harvester surface, pressure is applied to the piezoelectric transducers and converts mechanical energy into electrical energy. The piezoelectric energy harvester’s efficiency depends on the availability of the home appliances’ vibration energy; thus, using multiple piezoelectric transducers in series generates more power. The piezoelectric’ alternating current (AC) output is fed to a Cockroft-Walton voltage multiplier (CWVM) to convert into direct current (DC) and boost the output. Four piezoelectric transducers connected in series have successfully produced a voltage of up to 4.7 V. Its output voltage can be harnessed to power low-voltage electronic devices.

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Meng, Yanfang, Genqiang Chen, and Maoyong Huang. "Piezoelectric Materials: Properties, Advancements, and Design Strategies for High-Temperature Applications." Nanomaterials 12, no. 7 (April 1, 2022): 1171. http://dx.doi.org/10.3390/nano12071171.

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Piezoelectronics, as an efficient approach for energy conversion and sensing, have a far-reaching influence on energy harvesting, precise instruments, sensing, health monitoring and so on. A majority of the previous works on piezoelectronics concentrated on the materials that are applied at close to room temperatures. However, there is inadequate research on the materials for high-temperature piezoelectric applications, yet they also have important applications in the critical equipment of aeroengines and nuclear reactors in harsh and high-temperature conditions. In this review, we briefly introduce fundamental knowledge about the piezoelectric effect, and emphatically elucidate high-temperature piezoelectrics, involving: the typical piezoelectric materials operated in high temperatures, and the applications, limiting factors, prospects and challenges of piezoelectricity at high temperatures.

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Shakthivel, T. S., and Ramesh Gupta Burela. "Vibration Based Piezoelectric Energy Harvesting." Applied Mechanics and Materials 852 (September 2016): 846–51. http://dx.doi.org/10.4028/www.scientific.net/amm.852.846.

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Piezoelectric energy harvesting has applications in aircraft technology, where the piezoelectric patches are attached to the wings of the aircraft to convert the mechanical vibrations into useful electrical energy, which further is used to power the sensors of Aircraft Health Monitoring System, inflight operations like lighting and onboard entertainment. In this article, the performance of vibration based piezoelectric energy harvester (PEH) for a given frequency range is studied. A piezoelectric material that has a maximum piezoelectric coefficient (PZT-G1195) is chosen to increase the effective power output. The output power generated by the harvester due to transverse and longitudinal vibrations are compared. Finally parametric studies are performed on the PEH to analyze the design parameters influencing its performance.

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Covaci, Corina, and Aurel Gontean. "Piezoelectric Energy Harvesting Solutions: A Review." Sensors 20, no. 12 (June 21, 2020): 3512. http://dx.doi.org/10.3390/s20123512.

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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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Wang, Zhao, Xumin Pan, Yahua He, Yongming Hu, Haoshuang Gu, and Yu Wang. "Piezoelectric Nanowires in Energy Harvesting Applications." Advances in Materials Science and Engineering 2015 (2015): 1–21. http://dx.doi.org/10.1155/2015/165631.

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Recently, the nanogenerators which can convert the mechanical energy into electricity by using piezoelectric one-dimensional nanomaterials have exhibited great potential in microscale power supply and sensor systems. In this paper, we provided a comprehensive review of the research progress in the last eight years concerning the piezoelectric nanogenerators with different structures. The fundamental piezoelectric theory and typical piezoelectric materials are firstly reviewed. After that, the working mechanism, modeling, and structure design of piezoelectric nanogenerators were discussed. Then the recent progress of nanogenerators was reviewed in the structure point of views. Finally, we also discussed the potential application and future development of the piezoelectric nanogenerators.

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Han, Hyeonsu, and Junghyuk Ko. "Power-Generation Optimization Based on Piezoelectric Ceramic Deformation for Energy Harvesting Application with Renewable Energy." Energies 14, no. 8 (April 13, 2021): 2171. http://dx.doi.org/10.3390/en14082171.

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Along with the increase in renewable energy, research on energy harvesting combined with piezoelectric energy is being conducted. However, it is difficult to predict the power generation of combined harvesting because there is no data on the power generation by a single piezoelectric material. Before predicting the corresponding power generation and efficiency, it is necessary to quantify the power generation by a single piezoelectric material alone. In this study, the generated power is measured based on three parameters (size of the piezoelectric ceramic, depth of compression, and speed of compression) that contribute to the deformation of a single PZT (Lead zirconate titanate)-based piezoelectric element. The generated power was analyzed by comparing with the corresponding parameters. The analysis results are as follows: (i) considering the difference between the size of the piezoelectric ceramic and the generated power, 20 mm was the most efficient piezoelectric ceramic size, (ii) considering the case of piezoelectric ceramics sized 14 mm, the generated power continued to increase with the increase in the compression depth of the piezoelectric ceramic, and (iii) For piezoelectric ceramics of all diameters, the longer the depth of deformation, the shorter the frequency, and depending on the depth of deformation, there is a specific frequency at which the charging power is maximum. Based on the findings of this study, PZT-based elements can be applied to cases that receive indirect force, including vibration energy and wave energy. In addition, the power generation of a PZT-based element can be predicted, and efficient conditions can be set for maximum power generation.

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Yu, Yu Min. "Design and Analysis of a Piezoelectric Actuator." Advanced Materials Research 308-310 (August 2011): 2131–34. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.2131.

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Active materials are a group of solid-state materials whose geometric shape can be related to an energy input in the form of heat, light, electric field, or magnetic field. In the application of active materials to electromechanical energy conversion, electrical energy may be input to the material and the resulting deformation of the material can be used to move a load. The most common active materials used in actuators are piezoelectrics, magnetostrictives, and SMAs. In this paper, a piezoelectric actuation concept is presented that uses a new feed-screw motion accumulation technique. The feed-screw concept involves accumulating high frequency actuation strokes of a piezoelectric stack (driving element) by intermittently rotating nuts on an output feed-screw. The main parts of piezoelectric actuation such as clamp mechanism, rotary mechanism and “L type” driving mechanism are investigated. From the analysis, the deformation and stress of it are all under allowed value of 65Mn. The mathematics model of upside of rotary mechanism rotation motion is established. The results indicate that, the mechanisms of actuator all are satisfy the need of design

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CUI Yan, 崔岩, 王飞 WANG Fei, 董维杰 DONG Wei-jie, 姚明磊 YAO Ming-lei, and 王立鼎 WANG Li-ding. "Nonlinear piezoelectric energy harvester." Optics and Precision Engineering 20, no. 12 (2012): 2737–43. http://dx.doi.org/10.3788/ope.20122012.2737.

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Čeponis, Andrius, Dalius Mažeika, and Artūras Kilikevičius. "Bidirectional Piezoelectric Energy Harvester." Sensors 19, no. 18 (September 6, 2019): 3845. http://dx.doi.org/10.3390/s19183845.

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This paper represents a numerical and experimental investigation of the bidirectional piezoelectric energy harvester. The harvester can harvest energy from the vibrating base in two perpendicular directions. The introduced harvester consists of two cantilevers that are connected by a particular angle and two seismic masses. The first mass is placed at a free end of the harvester while the second mass is fixed at the joining point of the cantilevers. The piezoelectric energy harvester employs the first and the second out of plane bending modes. The numerical investigation was carried out to obtain optimal geometrical parameters and to calculate the mechanical and electrical characteristics of the harvester. The energy harvester can provide stable output power during harmonic and impact-based excitation in two directions. The results of the investigations showed that energy harvester provides a maximum output power of 16.85 µW and 15.9 4 µW when the base has harmonic vibrations in y and z directions, respectively. Maximum output of 4.059 nW/N and 3.1 nW/N in y and z directions were obtained in case of impact based excitation

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18

Uchino, Kenji. "Piezoelectric Energy Harvesting Systems." Journal of Physics: Conference Series 1052 (July 2018): 012002. http://dx.doi.org/10.1088/1742-6596/1052/1/012002.

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Caliò, Renato, Udaya Rongala, Domenico Camboni, Mario Milazzo, Cesare Stefanini, Gianluca de Petris, and Calogero Oddo. "Piezoelectric Energy Harvesting Solutions." Sensors 14, no. 3 (March 10, 2014): 4755–90. http://dx.doi.org/10.3390/s140304755.

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Agah, Mohammad, Khalil Allah Sajadian, Majid Khanali, Seyed Mohammad Moein Sadeghi, Mehdi Khanbazi, and Marina Viorela Marcu. "Wind Energy Potential Ranking of Meteorological Stations of Iran and Its Energy Extraction by Piezoelectric Element." Knowledge 2, no. 3 (September 8, 2022): 508–24. http://dx.doi.org/10.3390/knowledge2030030.

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Piezoelectrics have been used in several recent works to extract energy from the environment. This study examines the average wind speed across Iran and evaluates the amount of extracted voltage from vortex-induced vibrations with the piezoelectric cantilever beam (Euler–Bernoulli beam). This study aims to compute the maximum extracted voltage from polyvinylidene fluoride piezoelectric cantilever beam at the resonance from vortex-induced vibration to supply wireless network sensors, self-powered systems, and actuators. This simulation is proposed for the first-ranked meteorological station at its mean velocity over six years (2015–2020), and the finite element method is used for this numerical computation. The wind data of 76 meteorological stations in Iran over the mentioned period at the elevation of 10 m are collected every three hours and analyzed. Based on the statistical data, it is indicated that Zabol, Siri Island, and Aligudarz stations had recorded the maximum mean wind speed over the period at 6.42, 4.73, and 4.42 m/s, respectively, and then energy harvesting at the mean wind speed of top-ranked station (Zabol) is simulated. The prevailing wind directions are also studied with WRPLOT view software, and the wind vector field of 15 top-ranked stations is plotted. For energy harvesting simulation, periodic vortex shedding behind the bluff body, known as vortex-induced vibration, is considered numerically (finite element method). The piezoelectric cantilever beam is at a millimeter-scale and has a natural frequency of 630 Hz in its mode shapes to experience resonance phenomenon, which leads to maximum extracted voltage. The maximum extracted voltages for three piezoelectric cantilever beams with the natural frequency of 630 Hz with the wind speed of 6 m/s are 1.17, 1.52, and 0.043 mV, which are suitable for remote sensing, supplying self-power electronic devices, wireless networks, actuators, charging batteries, and setting up smart homes or cities. To achieve this, several energy harvesters with various dimensions should be placed in different orientations to utilize most of the blown wind.

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Wang, Sihui, Lei Wen, Xiaopeng Gong, Ji Liang, Xinggang Hou, and Feng Hou. "Piezoelectric-Based Energy Conversion and Storage Materials." Batteries 9, no. 7 (July 10, 2023): 371. http://dx.doi.org/10.3390/batteries9070371.

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The world’s energy crisis and environmental pollution are mainly caused by the increase in the use of fossil fuels for energy, which has led scientists to investigate specific cutting-edge devices that can capture the energy present in the immediate environment for subsequent conversion. The predominant form of energy is mechanical energy; it is the most prevalent energy in the environment and can be harvested for conversion into useful, electrical energy. Compared with electromagnetic, electrostatic, magneto strictive, dielectric elastomer and frictional electric transducers, piezoelectric transducers have higher high electrical and mechanical constants, large electromechanical coupling coefficients, high dielectric numbers and low losses and are currently the most dominant method of mechanical energy acquisition. Therefore, the research of piezoelectric transducers has received great attention from the scientific community. This paper reviews the research progress of piezoelectric energy acquisition technology. The main objective of this paper is to compile, discuss and summarize the recent literature on piezoelectric energy harvesting materials and applications. Piezoelectric catalytic materials, piezoelectric supercapacitors (SCs), piezoelectric self-charging devices and piezoelectric electrochemical energy storage are mainly introduced. This review briefly introduces the recent advances in piezoelectric-based catalysts and electrochemical energy storage, concentrating on the attributes of various piezoelectric materials and their uses.

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Zhang, XF, KM Hu, and H. Li. "Comparison of flexoelectric and piezoelectric ring energy harvester." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 11 (October 25, 2018): 3795–803. http://dx.doi.org/10.1177/0954406218806018.

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Flexoelectric/piezoelectric effect is an electromechanical coupling effect occurring in dielectrics. In this study, a flexoelectric/piezoelectric ring energy harvester is proposed based on the direct flexoelectric/piezoelectric effect. The flexoelectric/piezoelectric ring energy harvester is made of an elastic ring and a flexoelectric/piezoelectric patch laminated on its surface. The electromechanical coupling mechanism of the flexoelectric/piezoelectric ring energy harvester is explored. Then the voltage and power output across the load resistance are derived in the closed-circuit condition for the energy harvester. The distinctive characteristics between the flexoelectric and the piezoelectric energy harvesters are discussed and compared in detail. The output power/voltage is related to various parameters, such as flexoelectric/piezoelectric patch size, load resistance, and flexoelectric/piezoelectric patch thickness, which are discussed to improve the power output across the load resistance. The flexoelectric ring energy harvester is more effective than the piezoelectric ring energy harvester in the transverse oscillation-bending dominant vibration, since the flexoelectric effect is sensitive to the strain gradient (bending strain). This study, including theoretical derivations and simulation plots, provide design guidelines in engineering applications for flexoelectric/piezoelectric effect.

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Liu, Qing, Yichi Zhang, Jing Gao, Zhen Zhou, Hui Wang, Ke Wang, Xiaowen Zhang, Longtu Li, and Jing-Feng Li. "High-performance lead-free piezoelectrics with local structural heterogeneity." Energy & Environmental Science 11, no. 12 (2018): 3531–39. http://dx.doi.org/10.1039/c8ee02758g.

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Defiyani, Eka, Porman Pangaribuan, and Denny Darlis. "Implementation of raindrops energy collector board using piezoelectric transducer." MATEC Web of Conferences 197 (2018): 11011. http://dx.doi.org/10.1051/matecconf/201819711011.

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Indonesia is a country that has a fairly high rainfall, because it is located in the tropical area. This condition could be a potential for generating electrical energy from raindrops. If the heavy raindrop collide the piezoelectric materials, it can generate electrical energy. The piezoelectric effect was discovered by Jacques and Pierre Curie in 1880. They found that certain materials, when subjected to mechanical strain, suffered an electrical polarization that was proportional to the applied strain. This piezoelectric effect converts mechanical strain into electrical voltage. The molecular structure of piezoelectric materials produces a coupling between electrical and mechanical domains. In this research, raindrops will be exploited to produce electric voltage by piezoelectric transducer. Piezoelectric transducer used in this research is Lead Zirconate Titanate type. Energy conversion processing occurred when raindrop collide the polymer layer of piezoelectric and make an unelastic thrust on its surface. The designed system consists of raindrops collector board and serial connected piezoelectric transducer. From system above, highest voltage, reach is 3.13 VAC for 30 piezoelectric and the average voltage is 2.617 V. This results show us the potential usage of raindrops energy generator using piezoelectric transducer for tropical countries.

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Yahyapour, Ramisa, Mohammad Sajad Sorayani Bafqi, Masoud Latifi, and Roohollah Bagherzadeh. "Hybrid multilayered piezoelectric energy harvesters with non-piezoelectric layers." Journal of Materials Science: Materials in Electronics 33, no. 4 (January 23, 2022): 1783–97. http://dx.doi.org/10.1007/s10854-021-07296-1.

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Wang, Min, Yiming Xia, Huayan Pu, Yi Sun, Jiheng Ding, Jun Luo, Shaorong Xie, Yan Peng, Quan Zhang, and Zhongjie Li. "Piezoelectric Energy Harvesting from Suspension Structures with Piezoelectric Layers." Sensors 20, no. 13 (July 4, 2020): 3755. http://dx.doi.org/10.3390/s20133755.

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In this paper, we propose a generator for piezoelectric energy harvesting from suspension structures. This device consists of a leaf spring and eight pairs of piezoelectric layers attached to inner and outer surfaces. We present a special type of leaf spring, which can magnify the force from the workload to allow the piezoelectric layers to achieve larger deformation. The generator is to solve the problem of vibration energy reutilization in a low-frequency vibration system. To verify the efficiency of the proposed configuration, a series of experiments are operated. The results indicate that the resonance frequency (25.2 Hz) obtained from the sweep experiment is close to the simulation result (26.1 Hz). Impedance-matching experiments show that the sum of the output power attains 1.7 mW, and the maximum single layer reaches 0.6 mW with an impedance matching of 610 KΩ, and the instantaneous peak-peak power density is 3.82 mW/cm3. The capacitor-charging performance of the generator is also excellent under the series condition. For a 4.7 μF capacitor, the voltage is charged to 25 V in 30 s and limited at 32 V in 80 s. These results demonstrate the exploitable potential of piezoelectric energy harvesting from suspension structures.

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Briscoe, Joe, and Steve Dunn. "Piezoelectric nanogenerators – a review of nanostructured piezoelectric energy harvesters." Nano Energy 14 (May 2015): 15–29. http://dx.doi.org/10.1016/j.nanoen.2014.11.059.

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Jabbar, Hamid, Hyun Jun Jung, Nan Chen, Dae Heung Cho, and Tae Hyun Sung. "Piezoelectric energy harvester impedance matching using a piezoelectric transformer." Sensors and Actuators A: Physical 264 (September 2017): 141–50. http://dx.doi.org/10.1016/j.sna.2017.07.036.

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Zhou, Daiyong, Yin Lin, Gaojian Ren, and Yan Shao. "Wind-induced vibration piezoelectric energy collection in ventilation tunnels." E3S Web of Conferences 267 (2021): 01039. http://dx.doi.org/10.1051/e3sconf/202126701039.

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Ventilation tunnel wind-induced vibration piezoelectric energy collection MFC as vibration energy in the ventilation tunnel and stores it in the energy storage device to provide the electrical energy required by the wireless sensor in the tunnel. According to the piezoelectric effect of piezoelectric materials, the instantaneous accumulated positive and negative charges generated at both ends of the piezoelectric vibrator at the instantaneous wind speed and wind vibration in the tunnel are collected. By establishing a piezoelectric energy collection model, the irregular transient charges are captured and stored as Available direct current. The piezoelectric energy harvesting model uses wind speed rotation as the traction force to drive the piezoelectric vibrator to vibrate, thereby converting wind energy into instantaneous electrical energy, and using the electrical energy harvesting device to store the electrical energy in the energy storage device. Experiments verify that when the wind-induced vibration piezoelectric energy collection model of the ventilation tunnel is at a wind speed of 8m/s, the maximum output voltage of the energy storage device is 42.2V, which can meet the power supply requirements of wireless sensors in the ventilation tunnel.

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Si, Hongyu, Jinlu Dong, Lei Chen, Laizhi Sun, Xiaodong Zhang, and Mintian Gao. "Study of the Ambient Vibration Energy Harvesting Based on Piezoelectric Effect." International Journal of Nanoscience 14, no. 01n02 (February 2015): 1460017. http://dx.doi.org/10.1142/s0219581x14600175.

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The resonance between piezoelectric vibrator and the vibration source is the key to maximize the ambient vibration energy harvesting by using piezoelectric generator. In this paper, the factors that influence the output power of a single piezoelectric vibrator are analyzed. The effect of geometry size (length, thickness, width of piezoelectric chip and thickness of metal shim) of a single cantilever piezoelectric vibrator to the output power is analyzed and simulated with the help of MATLAB (matrix laboratory). The curves that output power varies with geometry size are obtained when the displacement and load at the free end are constant. Then the paper points out multi-resonant frequency piezoelectric power generation, including cantilever multi-resonant frequency piezoelectric power generation and disc type multi-resonant frequency piezoelectric generation. Multi-resonant frequency of cantilever piezoelectric power generation can be realized by placing different quality mass at the free end, while disc type multi-resonant frequency piezoelectric generation can be realized through series and parallel connection of piezoelectric vibrator.

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Liang, Junrui, and Wei-Hsin Liao. "Energy flow in piezoelectric energy harvesting systems." Smart Materials and Structures 20, no. 1 (December 2, 2010): 015005. http://dx.doi.org/10.1088/0964-1726/20/1/015005.

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Abdul Rashid, Affa Rozana, Nur Insyierah Md Sarif, and Khadijah Ismail. "Development of Smart Shoes Using Piezoelectric Material." Malaysian Journal of Science Health & Technology 7, no. 1 (March 30, 2021): 49–55. http://dx.doi.org/10.33102/mjosht.v7i1.158.

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The consumption of low-power electronic devices has increased rapidly, where almost all applications use power electronic devices. Due to the increase in portable electronic devices’ energy consumption, the piezoelectric material is proposed as one of the alternatives of the significant alternative energy harvesters. This study aims to create a prototype of “Smart Shoes” that can generate electricity using three different designs embedded by piezoelectric materials: ceramic, polymer, and a combination of both piezoelectric materials. The basic principle for smart shoes’ prototype is based on the pressure produced from piezoelectric material converted from mechanical energy into electrical energy. The piezoelectric material was placed into the shoes’ sole, and the energy produced due to the pressure from walking, jogging, and jumping was measured. The energy generated was stored in a capacitor as piezoelectric material produced a small scale of energy harvesting. The highest energy generated was produced by ceramic piezoelectric material under jumping activity, which was 1.804 mJ. Polymer piezoelectric material produced very minimal energy, which was 55.618 mJ. The combination of both piezoelectric materials produced energy, which was 1.805 mJ from jumping activity.

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Zhang, Changjiang, Lin Ding, Lin Yang, Zuomei Yang, Zesheng Yang, and Li Zhang. "Influence of Shape and Piezoelectric-Patch Length on Energy Conversion of Bluff Body-Based Wind Energy Harvester." Complexity 2020 (July 14, 2020): 1–10. http://dx.doi.org/10.1155/2020/3789809.

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The technology of scavenging ambient energy to realize self-powered of wireless sensor has an important value in practice. In order to investigate the effects of piezoelectric-patch length and the shape of front bluff body on energy conversion of the wind energy harvester by flow-induced vibration, the characteristics of a piezoelectric wind energy harvester based on bluff body are experimentally studied in this work. Four different section shapes of the bluff body, including triangular cylinder, trapezoidal cylinder, reverse trapezoidal cylinder, and square cylinder, are tested. The piezoelectric patch is attached on the leeward side of the bluff body. The lengths of piezoelectric patch are considered as 1.0D–1.4D (D is the characteristic length of the bluff body). It is found that the length of the piezoelectric patch and the shape of the front bluff body play a vital role in improving the performance of wind energy harvester. For the reverse trapezoidal cylinder and square cylinder, the back-to-back vortex-induced vibration (VIV) and galloping phenomenon can be observed. In addition, the energy harvesting performance of the reverse trapezoidal cylinder piezoelectric harvester is the best. The maximum average peak voltage of 1.806 V and the output power of P=16.3 μW can be obtained when external resistance and the length of piezoelectric patch are 100 KΩ and 1.1D, respectively.

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Li, Shan Shan, Zheng Bin Wu, Yi Kun Su, and Kui Xi. "Piezoelectric Vibration Energy Harvester in Electric Vehicles." Advanced Materials Research 724-725 (August 2013): 1427–30. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.1427.

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This paper reports the establishment of a piezoelectric vibration energy harvester for electric vehicle (EV) applications. Finite element analysis results, which agree experimental outcome well, have demonstrated that the piezoelectric vibrator can produce 1 V DC electric signal under 2 mm amplitude mechanical vibration at lower frequency. The energy harvester comprising two piezoelectric vibrators connected in series charged a Ni-MH secondary battery from 1.17 V to 1.24 V. It is verified that this piezoelectric energy harvester can be used in EVs and will potentially improve the energy use efficiency and performance of EVs.

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Guo, Chuan, and Albert C. J. Luo. "Nonlinear piezoelectric energy harvesting induced through the Duffing oscillator." Chaos: An Interdisciplinary Journal of Nonlinear Science 32, no. 12 (December 2022): 123145. http://dx.doi.org/10.1063/5.0123609.

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In this paper, nonlinear piezoelectric energy harvesting induced by a Duffing oscillator is studied, and the bifurcation trees of period-1 motions to chaos for such a piezoelectric energy-harvesting system are obtained analytically. Distributed-parameter electromechanical modeling of a piezoelectric energy harvester is presented first, and the electromechanically coupled circuit equation excited by infinitely many vibration modes is developed. The governing electromechanical equations are reduced to ordinary differential equations in modal coordinates, and eventually an infinite set of algebraic equations is obtained for the complex modal vibration responses and the complex voltage responses of the energy harvester beam. One single mode case is considered in this paper, and periodic motions with bifurcation trees are obtained through an implicit discrete mapping method. The frequency–amplitude characteristics of periodic motions are obtained for the nonlinear piezoelectric energy-harvesting systems, which provide a better understanding of where and how to achieve the best energy harvesting. This study describes about how the nonlinear oscillator induces piezoelectric energy harvesting through a beam system. The nonlinear piezoelectric energy harvesting is presented through a nonlinear oscillator. Due to the nonlinear oscillator, chaotic piezoelectric energy-harvesting states can get more energy compared to the linear piezoelectric energy-harvesting system.

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Ma, Hua An, Jing Quan Liu, Gang Tang, Chun Sheng Yang, Yi Gui Li, and Dan Nong He. "A Broadband Frequency Piezoelectric Vibration Energy Harvester." Key Engineering Materials 483 (June 2011): 626–30. http://dx.doi.org/10.4028/www.scientific.net/kem.483.626.

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As the low-power wireless sensor components and the development of micro electromechanical systems, long-term supply of components is a major obstacle of their development. One of solutions to this problem is based on the environmental energy collection of piezoelectric vibration energy harvesting. Currently, frequency band of piezoelectric vibration energy harvester is narrow and the frequency is high, which is not fit for the vibration energy acquisition in the natural environment. A piezoelectric vibration energy harvester with lower working frequency and broader band is designed and a test system to analyze the harvester is presented in this paper. The traditional mass is replaced by a permanent magnet in this paper, While other two permanent magnets are also placed on the upper and above of the piezoelectric cantilever. Experiments showed, under the 0.5g acceleration, compared with the traditional non-magnetic piezoelectric vibration energy harvesting, a piezoelectric cantilever (length 40mm, width 8mm, thickness 0.8mm) has a peak-peak voltage of 32.4V, effectively enlarges working frequency band from 67HZ-105HZ to 63HZ-108HZ.

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Zhu, Yongqiang, Zhaoyang Zhang, Pingxia Zhang, and Yurong Tan. "A Magnetically Coupled Piezoelectric–Electromagnetic Low-Frequency Multidirection Hybrid Energy Harvester." Micromachines 13, no. 5 (May 11, 2022): 761. http://dx.doi.org/10.3390/mi13050761.

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The traditional single electromechanical conversion energy harvester can collect energy only in a single vibration direction. Moreover, it requires high environmental vibration frequency, and its output power is low. To solve these problems, a cross-shaped magnetically coupled piezoelectric–electromagnetic hybrid harvester is proposed. The harvester comprised a ring-shaped support frame, a piezoelectric generation structure, and an electromagnetic generation structure. The harvester could simultaneously generate energy piezoelectrically and electrically, in addition, it could generate electricity efficiently at a lower environmental vibration, and it can collect the energy in two vibration directions simultaneously. To verify the effectiveness of the device, we set up a vibration experiment system and conducted comparative experiments about non-magnetically coupled piezoelectric, magnetically coupled piezoelectric, and magnetically coupled piezoelectric–electromagnetic hybrid energy harvesters. The experimental results showed that the output power of the magnetically coupled piezoelectric–electromagnetic hybrid energy harvester was 2.13 mW for the piezoelectric structure and 1.76 mW for the electromagnetic structure under the vibration of single-direction resonant frequency. The total hybrid output power was 3.89 mW. The hybrid harvester could collect vibration energy parallel to the ring in any direction. Furthermore, compared with the non-magnetically coupled piezoelectric energy harvester and the magnetically coupled piezoelectric energy harvester, the output power was increased by 141.6% and 55.6%, respectively.

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Betts, David N., H. Alicia Kim, and Christopher R. Bowen. "Preliminary Study of Optimum Piezoelectric Cross-Ply Composites for Energy Harvesting." Smart Materials Research 2012 (April 9, 2012): 1–8. http://dx.doi.org/10.1155/2012/621364.

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Energy harvesting devices based on a piezoelectric material attached to asymmetric bistable laminate plates have been shown to exhibit high levels of power extraction over a wide range of frequencies. This paper optimizes for the design of bistable composites combined with piezoelectrics for energy harvesting applications. The electrical energy generated during state-change, or “snap-through,” is maximized through variation in ply thicknesses and rectangular laminate edge lengths. The design is constrained by a bistability constraint and limits on both the magnitude of deflection and the force required for the reversible actuation. Optimum solutions are obtained for differing numbers of plies and the numerical investigation results are discussed.

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Hakim, Ashhab Aghnil. "PERANCANGAN SISTEM MONITORING TEGANGAN PIEZOELEKTRIK UNTUK PENGISIAN BATERAI BERBASIS BLUETHOOTH." Jurnal Teknik Elektro Uniba (JTE Uniba) 4, no. 2 (February 28, 2020): 62–67. http://dx.doi.org/10.36277/jteuniba.v4i2.56.

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Abstract— Electrical energy has become one of the basic needs at this time. The more population, the more electricity consumption is needed. so it takes a lot of innovation to support those needs. Energy harvesting system is one of them, by using piezoelectricity, we can harvest electrical energy. This tool works by changing the kinetic energy of the human footing which is then converted to produce electrical energy. In use, when it runs normally on this prototype the influence of the elasticity of the materials present in this prototype will cause vibrations and give effect to the piezoelectric sensor. Then the vibrations detected by piezoelectric will respond to the kinetic energy produced. This kinetic energy is produced from human footing which can be converted into other forms of energy according to energy conversion. Energy utilization is carried out by storing the energy output from the piezoelectric into the battery (recharge), which then by using a voltage sensor and Bluetooth module HC-05 will be monitored and data will be sent to the cellphone so that the piezoelectric output voltage can be recorded and monitored. Keywords : Piezoelectric, Battery, Voltage Sensor, Bluetooth HC-05. Abstrak— Energi listrik sudah menjadi salah satu kebutuhan pokok saat ini. Semakin banyak jumlah penduduk maka semakin banyak pula konsumsi listrik yang dibutuhkan. sehingga dibutuhkan banyak inovasi untuk menyokong kebutuhan tersebut. Sistem pemanen energi merupakan salah satunya, dengan menggunakan piezoelektrik kita dapat memanen energi listrik Cara kerja alat ni yaitu dengan mengubah energi kinetik dari pijakan manusia yang kemudian di konversi untuk menghasilkan energi listrik. Dalam penggunaannya, ketika berjalan normal di atas prototipe ini pengaruh sifat eleastisitas bahan yang ada pada prototipe ini akan menyebabkan getaran dan memberikan efek pada sensor piezoelektrik. Kemudian getaran yang dideteksi oleh piezoelektrik akan merespon energi kinetik yang dihasilkan. Energi kinetik ini dihasilkan dari pijakan manusia yang dapat dikonversi menjadi bentuk energi lain sesuai dengan konversi energi. Pemanfaatan energi dilakukan dengan menampung hasil energi dari piezoelektrik ke dalam baterai (recharge), yang kemudian dengan menggunakan sensor tegangan dan modul Bluetooth HC-05 akan dimonitoring dan data akan dikirim ke ponsel supaya tegangan output piezoelektrik dapat didata dan dimonitoring. Kata kunci : Piezoelektrik, Baterai, Sensor Tegangan, Bluetooth HC-05.

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Ji, Sang Hyun, Yong-Soo Cho, and Ji Sun Yun. "Wearable Core-Shell Piezoelectric Nanofiber Yarns for Body Movement Energy Harvesting." Nanomaterials 9, no. 4 (April 4, 2019): 555. http://dx.doi.org/10.3390/nano9040555.

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In an effort to fabricate a wearable piezoelectric energy harvester based on core-shell piezoelectric yarns with external electrodes, flexible piezoelectric nanofibers of BNT-ST (0.78Bi0.5Na0.5TiO3-0.22SrTiO3) and polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE) were initially electrospun. Subsequently, core-shell piezoelectric nanofiber yarns were prepared by twining the yarns around a conductive thread. To create the outer electrode layers, the core-shell piezoelectric nanofiber yarns were braided with conductive thread. Core-shell piezoelectric nanofiber yarns with external electrodes were then directly stitched onto the fabric. In bending tests, the output voltages were investigated according to the total length, effective area, and stitching interval of the piezoelectric yarns. Stitching patterns of the piezoelectric yarns on the fabric were optimized based on these results. The output voltages of the stitched piezoelectric yarns on the fabric were improved with an increase in the pressure, and the output voltage characteristics were investigated according to various body movements of bending and pressing conditions.

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Xu, Meng Hua, and Bao Lin Wang. "Electromechanical Analysis of a Beam Piezoelectric Transducer Energy Harvest Device." Advanced Materials Research 415-417 (December 2011): 1114–20. http://dx.doi.org/10.4028/www.scientific.net/amr.415-417.1114.

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This paper considers the vibtation problem of beam piezoelectric transducer. Traditional reasearches face difficulties in providing the analytical expression for the piezoelectric effect of the piezoelectric vibrator with a mass at its end as well as the improper model of piezoelectric vibrators which work in high-frequency band. In this paper, the nature of the current output in a large frequency range is explored. Firstly, static analysis of cantilever is conducted and the piezoelectric effect under a certain deformation were formuled. Next, the main vibration modes of the cantilever were modified so that the main modes are of orthogonality in nature and satisfy the boundary conditions. The dynamic deflection of the piezoelectric cantilever was also investigated using the modified vibration modes. Charge outputs of piezoelectric cantilever beam are also demonstrated. Finally, based on the theoretical analysis, some numerical results are given.

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Zhang, Ye-Wei, Chuang Wang, Bin Yuan, and Bo Fang. "Integration of Geometrical and Material Nonlinear Energy Sink with Piezoelectric Material Energy Harvester." Shock and Vibration 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/1987456.

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This paper presents a novel design by integrating geometrical and material nonlinear energy sink (NES) with a piezoelectric-based vibration energy harvester under shock excitation, which can realize vibration control and energy harvesting. The nonlinear spring and hysteresis behavior of the NES could reflect geometrical and material nonlinearity, respectively. Two configurations of the piezoelectric device, including the piezoelectric element embedded between the NES mass and the single-degree-of-freedom system or ground, are utilised to examine the energy dissipated by damper and hysteresis behavior of NES and the energy harvested by the piezoelectric element. Similar numerical research methods of Runge-Kutta algorithm are used to investigate the two configurations. The energy transaction measure (ETM) is adopted to examine the instantaneous energy transaction between the primary and the NES-piezoelectricity system. And it demonstrates that the dissipated and harvested energy transaction is transferred from the primary system to the NES-piezoelectricity system and the instantaneous transaction of mechanical energy occupies a major part of the energy of transaction. Both figurations could realize vibration control efficiently.

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Gong, Jun Jie, Ying Ying Xu, and Zhi Lin Ruan. "Modeling and Analysis of Piezoelectric Bimorph Cantilever for Vibration Energy Harvesting." Advanced Materials Research 610-613 (December 2012): 2583–88. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.2583.

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The vibration energy can be converted to electrical energy directly and efficiently using piezoelectric cantilever beam based on piezoelectric effect. Since its structure is simple and its working process is unpoisonous to the environment, the piezoelectric cantilever beam can be used in various fields comprehensively. The present paper perform an analysis on the vibration energy harvesting problem of piezoelectric bimorph cantilever beam. The piezoelectric cantilever model has been formulated using the theory of elasticity mechanics and piezoelectric theory. A prototype of piezoelectric power generator is set up to do vibration test, and the electromechanical coupling FEA model under vibration load is built to simulate its output displacement, stress and voltage. The present numerical results of piezoelectric bimorph cantilever coincide well with our related experimental results, which shows the validity of the present FEA model and the relate results.

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Chure, Ming Cheng, Long Wu, King Kung Wu, Yu Chang Lin, Meng Jiun Wu, Chia Cheng Tung, Jui Sheng Lin, and Wu Chung Ma. "Effect of Dimensional Size on the Electrical Voltage Generation Property of PZT Piezoelectric Ceramic." Applied Mechanics and Materials 377 (August 2013): 166–70. http://dx.doi.org/10.4028/www.scientific.net/amm.377.166.

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In this study the relation between output voltages of PZT piezoelectric ceramic body with applied impact mechanical energy are studies. The output voltages of PZT piezoelectric ceramic body are increased with the increasing of the applied mechanical energy. Under the same impact mechanical energy, the output voltages of the PZT piezoelectric ceramic body are depending on both the dimensional size and properties of the samples. The PZT piezoelectric ceramic body with greater (t/D2) can produce a higher output voltage. With the same piezoelectric ceramic body size, under the same impact mechanical energy, the output voltage of soft type piezoelectric ceramic body is higher than that of hard type piezoelectric ceramic body, which is because the g33 value of soft type piezoelectric ceramic body is higher than that of hard type piezoelectric ceramic body.

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Raczynski, Radoslaw, and Grzegorz Litak. "Air Flow Conditions for Polymer Energy Harvesting." Applied Mechanics and Materials 791 (September 2015): 315–20. http://dx.doi.org/10.4028/www.scientific.net/amm.791.315.

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We present the results on the Karman vortex creations on the two circular cylinders. Changing the inlet velocity we examine static and dynamic pressure distributions. In such a configuration,a polymer piezoelectric foil, which could be placed inside turbulent boundary layers, can work as anenergy harvester. By matching the fluid flows predominant frequency with the natural frequency ofthe piezoelectric generator would maximize the piezoelectric power output.

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Liwei Zhang, Guoqiang Zheng, and Jishun Li. "Adaptive Active Piezoelectric Energy Harvester." International Journal of Digital Content Technology and its Applications 6, no. 17 (September 30, 2012): 410–19. http://dx.doi.org/10.4156/jdcta.vol6.issue17.45.

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Janicek, V., and M. Husak. "Polymer Based Piezoelectric Energy Microgenerator." Renewable Energy and Power Quality Journal 1, no. 08 (April 2010): 930–35. http://dx.doi.org/10.24084/repqj08.528.

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Shin, Dong-Myeong, and Yoon-Hwae Hwang. "Piezoelectric Nanogenerators: Energy Harvesting Technology." Vacuum Magazine 3, no. 2 (June 30, 2016): 17–20. http://dx.doi.org/10.5757/vacmac.3.2.17.

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Kim, Sang-Gook, Shashank Priya, and Isaku Kanno. "Piezoelectric MEMS for energy harvesting." MRS Bulletin 37, no. 11 (November 2012): 1039–50. http://dx.doi.org/10.1557/mrs.2012.275.

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Lee, Byung Yang, Jinxing Zhang, Chris Zueger, Woo-Jae Chung, So Young Yoo, Eddie Wang, Joel Meyer, Ramamoorthy Ramesh, and Seung-Wuk Lee. "Virus-based piezoelectric energy generation." Nature Nanotechnology 7, no. 6 (May 13, 2012): 351–56. http://dx.doi.org/10.1038/nnano.2012.69.

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Journal articles on the topic 'Piezoelectric energy'

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