Design and analysis of a hollow triangular piezoelectric cantilever beam harvester for vibration energy collection

Wang, Linbing; Tong, Xinlong; Yang, Hailu; Wei, Ya; Miao, Yinghao

doi:10.1007/s42947-019-0032-1

Cited by 16 publications

(3 citation statements)

References 14 publications

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“…Vibration energy harvesting can be an effective powering strategy for wireless sensors that are placed in deep and dark locations, where there is no exposure to air or light [ 8 , 9 ]. Three main technologies of energy transduction have been used for years to convert mechanical energy into electricity, which are piezoelectric [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ], electromagnetic [ 18 , 19 , 20 , 21 , 22 , 23 , 24 ], and electrostatic [ 25 , 26 , 27 , 28 , 29 , 30 ]. A newly developed electrostatic technology that can convert mechanical energy into electricity has been introduced by Wang’s group in 2012, which is the triboelectric nanogenerator (TENG) [ 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

Recent Progress on Triboelectric Nanogenerators for Vibration Energy Harvesting and Vibration Sensing

et al. 2022

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The triboelectric nanogenerator (TENG) is a recent technology that reforms kinetic energy generation and motion sensing. A TENG comes with variety of structures and mechanisms that make it suitable for wide range of applications and working conditions. Since mechanical vibrations are abundant source of energy in the surrounding environment, the development of a TENG for vibration energy harvesting and vibration measurements has attracted a huge attention and great research interest through the past two decades. Due to the high output voltage and high-power density of a TENG, it can be used as a sustainable power supply for small electronics, smart devices, and wireless sensors. In addition, it can work as a vibration sensor with high sensitivity. This article reviews the recent progress in the development of a TENG for vibration energy harvesting and vibration measurements. Systems of only a TENG or a hybrid TENG with other transduction technologies, such as piezoelectric and electromagnetic, can be utilized for vibrations scavenging. Vibration measurement can be done by measuring either vibration displacement or vibration acceleration. Each can provide full information about the vibration amplitude and frequency. Some TENG vibration-sensing architectures may also be used for energy harvesting due to their large output power. Numerous applications can rely on TENG vibration sensors such as machine condition monitoring, structure health monitoring, and the Internet of things (IoT).

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Section: Introductionmentioning

confidence: 99%

Recent Progress on Triboelectric Nanogenerators for Vibration Energy Harvesting and Vibration Sensing

et al. 2022

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“…Xiong, Y. et al [ 34 ] designed a cantilever beam with a rectangular hollow middle layer, which reduced the resonance frequency of the cantilever beam and increased the output voltage. Wang, L. et al [ 35 ] designed a hollow triangular piezoelectric cantilever beam suitable for the random low frequency vibration environment of transportation infrastructure. Wang, B. et al [ 36 ] designed a piezoelectric cantilever beam with a trapezoidal hole, and this piezoelectric cantilever beam obtained a power density of 8.932 mW/cm 3 at an acceleration of 1.5 g. The triangular hole, rectangular hole, and trapezoidal hole were compared in Wang B’s research, and the PEH with a trapezoidal hole was proved to have the best performance.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of Piezoelectric Cantilever Beam Vibration Energy Harvester

Gao

et al. 2022

Micromachines

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Piezoelectric cantilever beams are commonly utilized to harvest energy from environmental vibrations due to their simple structures. This paper optimizes a single crystal trapezoidal hollow structure piezoelectric cantilever beam vibration energy harvester with a copper substrate to achieve high energy density at a low frequency. Finite element analysis (FEA) is adopted to optimize the size of the copper substrate at first, and the piezoelectric energy harvester (PEH) is further optimized with a trapezoidal hollow structure under the optimal size of the copper substrate. The developed PEH with a trapezoidal hollow structure (La = 20 mm, Lb = 15 mm, and Lh = 40 mm), with a copper substrate of 80 mm × 33 mm × 0.2 mm, can obtain the best output performance. Under the condition of 1 g acceleration, the resonance frequency and peak voltage output were 23.29 Hz and 40.4 V, respectively. Compared with the unhollowed PEH, the developed trapezoidal hollow structure PEH can reduce its resonant frequency by 12.18% and increase output voltage by 34.67%, while also supplying a power density of 7.24 mW/cm3. This study verified the feasibility of the optimized design through simulation and experimental comparison.

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“…In order to improve utilization efficiency of the piezoelectric material of the harvester, some scholars proposed variable‐section cantilever structures to solve the problem of uneven surface strain of the cantilever 37,38 . Wang et al 39 explored the energy harvesting performance of four cantilever harvesters with different shapes. The research results prove that the triangular cantilever substrate with a central triangular hole is the optimal structure style to collect more energy in a wider low‐frequency vibration environment.…”

Section: Introductionmentioning

confidence: 99%

An investigation on an absorber working through piezoelectric conversion mechanism

Zhang

Xie

Zhang

et al. 2021

Energy Science & Engineering

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A novel absorber, which is equivalent to a spring and a damper, is developed and the corresponding equivalent formulae of stiffness coefficient and damping coefficient are derived. The key component of the absorber is the circular array of multi‐section U‐shaped piezoelectric coupled beams (MUPCBs) which can alleviate harmful vibration of various devices by converting the vibration energy into electrical energy. As an example, the absorber is used in a quarter vehicle suspension system, and its properties of energy harvesting and vibration attenuation are studied using the computational model of dual‐mass iteration method. The dual‐mass model includes two sprung masses (body mass and wheel mass) which are linked by the absorber. The effects of some important factors, such as the piezoelectric coupling section (PCS) length, the PCS substrate thickness, the force arm length of the MUPCB, the speed of vehicle and the class of road surface on the root mean square (RMS) of the output power, are discussed. The research results show that half of the amplitude of the harmful vibration can be attenuated and a power up to 254.3 W can be realized by the absorber made of MUPCBs in the quarter vehicle suspension computational case. This research provides a feasible piezoelectric absorber suitable for various devices by transferring the vibration energy into electricity to attenuate the harmful vibration and achieve the energy recycling application.

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Design and analysis of a hollow triangular piezoelectric cantilever beam harvester for vibration energy collection

Cited by 16 publications

References 14 publications

Recent Progress on Triboelectric Nanogenerators for Vibration Energy Harvesting and Vibration Sensing

Recent Progress on Triboelectric Nanogenerators for Vibration Energy Harvesting and Vibration Sensing

Design and Optimization of Piezoelectric Cantilever Beam Vibration Energy Harvester

An investigation on an absorber working through piezoelectric conversion mechanism

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