scholarly journals On the Possibility of Developing Magnetostrictive Fe-Co/Ni Clad Plate with Both Vibration Energy Harvesting and Mass Sensing Elements

Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4486
Author(s):  
Kotaro Mori ◽  
Yinli Wang ◽  
Kenichi Katabira ◽  
Daiki Neyama ◽  
Ryuichi Onodera ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Output Voltage ◽  
Virus Detection ◽  
Vibration Energy ◽  
Mass Detection ◽  
Vibration Energy Harvesting ◽  
Bending Vibration ◽  
Energy Harvesters ◽  
Clad Steel ◽  
Spread Of Infection

The severe acute respiratory syndrome coronavirus (SARS-CoV-2) has spread rapidly around the world. In order to prevent the spread of infection, city blockades and immigration restrictions have been introduced in each country, but these measures have a severe serious impact on the economy. This paper examines the possibility of both harvesting vibration energy and detecting mass by using a magnetostrictive alloy. Few efforts have been made to develop new magnetostrictive biosensor materials. Therefore, we propose magnetostrictive Fe-Co/Ni clad steel vibration energy harvesters with mass detection, and we numerically and experimentally discuss the effect of the proof mass weight on the frequency shift and output voltage induced by bending vibration. The results reveal that the frequency and output voltage decrease significantly as the mass increases, indicating that the energy harvesting device is capable of mass detection. In the future, device miniaturization and the possibility of virus detection will be considered.

scholarly journals FINITE ELEMENT SIMULATION OF MEMS PIEZOELECTRIC ENERGY SCAVENGER BASED ON PZT THIN FILM

2019 ◽  
Vol 20 (1) ◽  
pp. 90-99
Author(s):  
Aliza Aini Md Ralib ◽  
Nur Wafa Asyiqin Zulfakher ◽  
Rosminazuin Ab Rahim ◽  
Nor Farahidah Za'bah ◽  
Noor Hazrin Hany Mohamad Hanif
Keyword(s):  
Thin Film ◽  
Energy Harvesting ◽  
Output Voltage ◽  
Energy Harvester ◽  
Maximum Output Power ◽  
Vibration Energy ◽  
Maximum Output ◽  
Vibration Energy Harvesting ◽  
Piezoelectric Energy ◽  
The World

Vibration energy harvesting has been progressively developed in the advancement of technology and widely used by a lot of researchers around the world. There is a very high demand for energy scavenging around the world due to it being cheaper in price, possibly miniaturized within a system, long lasting, and environmentally friendly. The conventional battery is hazardous to the environment and has a shorter operating lifespan. Therefore, ambient vibration energy serves as an alternative that can replace the battery because it can be integrated and compatible to micro-electromechanical systems. This paper presents the design and analysis of a MEMS piezoelectric energy harvester, which is a vibration energy harvesting type. The energy harvester was formed using Lead Zicronate Titanate (PZT-5A) as the piezoelectric thin film, silicon as the substrate layer and structural steel as the electrode layer. The resonance frequency will provide the maximum output power, maximum output voltage and maximum displacement of vibration. The operating mode also plays an important role to generate larger output voltage with less displacement of cantilever. Some designs also have been studied by varying height and length of piezoelectric materials. Hence, this project will demonstrate the simulation of a MEMS piezoelectric device for a low power electronic performance. Simulation results show PZT-5A piezoelectric energy with a length of 31 mm and height of 0.16 mm generates maximum output voltage of 7.435 V and maximum output power of 2.30 mW at the resonance frequency of 40 Hz. ABSTRAK: Penuaian tenaga getaran telah berkembang secara pesat dalam kemajuan teknologi dan telah digunakan secara meluas oleh ramai penyelidik di seluruh dunia. Terdapat permintaan yang sangat tinggi di seluruh dunia terhadap penuaian tenaga kerana harganya yang lebih murah, bersaiz kecil dalam satu sistem, tahan lama dan mesra alam. Manakala, bateri konvensional adalah berbahaya bagi alam sekitar dan mempunyai jangka hayat yang lebih pendek. Oleh itu, getaran tenaga dari persekitaran lebih sesuai sebagai alternatif kepada bateri kerana ia mudah diintegrasikan dan serasi dengan sistem mikroelektromekanikal. Kertas kerja ini  membentangkan reka bentuk dan analisis tenaga piezoelektrik MEMS iaitu salah satu jenis penuaian tenaga getaran. Penuai tenaga ini dibentuk menggunakan Lead Zicronate Titanate (PZT-5A) sebagai lapisan filem tipis piezoelektrik, silikon sebagai lapisan substrat dan keluli struktur sebagai lapisan elektrod. Frekuensi resonans akan memberikan hasil tenaga maksima, voltan tenaga maksima dan getaran jarak maksima. Mod pengendalian juga memainkan peranan penting bagi menghasilkan tenaga yang lebih besar. Reka bentuk yang mempunyai ketinggian dan panjang berlainan juga telah diuji dengan menggunakan bahan piezoelektrik yang sama. Oleh itu, projek ini akan menghasilkan simulasi piezoelektrik MEMS yang sesuai digunakan bagi alat elektronik berkuasa rendah. Hasil simulasi menunjukkan dengan panjang 31 mm dan ketinggian 0.16 mm, piezoelektrik PZT ini menghasilkan voltan maksima sebanyak 7.435 V dan tenaga output maksima 2.30 mW pada frekuensi resonans 40 Hz.

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.

scholarly journals A Review of Piezoelectric Vibration Energy Harvesting with Magnetic Coupling Based on Different Structural Characteristics

Micromachines ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 436
Author(s):  
Junxiang Jiang ◽  
Shaogang Liu ◽  
Lifeng Feng ◽  
Dan Zhao
Keyword(s):  
Energy Harvesting ◽  
Magnetic Force ◽  
Structural Characteristics ◽  
Magnetic Coupling ◽  
Vibration Energy ◽  
Vibration Energy Harvesting ◽  
Energy Harvesters ◽  
Harvesting Efficiency ◽  
Energy Harvesting Efficiency ◽  
Piezoelectric Vibration

Piezoelectric vibration energy harvesting technologies have attracted a lot of attention in recent decades, and the harvesters have been applied successfully in various fields, such as buildings, biomechanical and human motions. One important challenge is that the narrow frequency bandwidth of linear energy harvesting is inadequate to adapt the ambient vibrations, which are often random and broadband. Therefore, researchers have concentrated on developing efficient energy harvesters to realize broadband energy harvesting and improve energy-harvesting efficiency. Particularly, among these approaches, different types of energy harvesters adopting magnetic force have been designed with nonlinear characteristics for effective energy harvesting. This paper aims to review the main piezoelectric vibration energy harvesting technologies with magnetic coupling, and determine the potential benefits of magnetic force on energy-harvesting techniques. They are classified into five categories according to their different structural characteristics: monostable, bistable, multistable, magnetic plucking, and hybrid piezoelectric–electromagnetic energy harvesters. The operating principles and representative designs of each type are provided. Finally, a summary of practical applications is also shown. This review contributes to the widespread understanding of the role of magnetic force on piezoelectric vibration energy harvesting. It also provides a meaningful perspective on designing piezoelectric harvesters for improving energy-harvesting efficiency.

A Novel Vibration Energy Harvesting Method via Pulse Liquid Flow

2011 ◽  
Vol 97-98 ◽  
pp. 1076-1080
Author(s):  
Qiong Liu ◽  
Chang Rong Liao ◽  
Dan Xia Zhao ◽  
Lei Xie
Keyword(s):  
Energy Harvesting ◽  
Electric Power ◽  
Liquid Flow ◽  
Output Voltage ◽  
Active Vibration Control ◽  
Structural Vibration ◽  
Vibration Energy ◽  
Vibration Energy Harvesting ◽  
Harvesting Method ◽  
Active Vibration

Presently the electric power harvested from vibration energy by existing researches is mostly at the level of μW or mW, which is not available for structural vibration energy harvesting due to the characteristics of lower frequency, bigger mass, and higher Vibration Energy. Therefore, a novel vibration energy harvesting method via pulse liquid flow for structural vibration is put forward. The principle of the method is mainly depicted as follows: the pulse liquid flow motivated by external vibration twirls the hydraulic motor’s output shaft; then electric power is produced by the generator rotor due to the shaft torque. In this paper, the Energy Harvesting Model has been built with the help of the fluid mechanics principle and the electromagnetic induction principle. In addition, the formula for output voltage was derived and, meanwhile, the influence of the piston’s moving speed amplitude on output voltage has been analyzed as well. Ultimately, we have designed an experimental setup in order to verify the rationality of the analytical method. In our experiments, sinusoidal mechanical excitation was used to test the Energy Harvesting characteristics by the J95-I absorber testing platform. According to the results, the waveform of output line voltage is in a good agreement with the theoretical analysis, which shows effectiveness of this novel method and the worth of which to help solve the problem of dependable power supply for current semi-active vibration control systems.

Transfer Function Analysis of Constrained, Distributed Piezoelectric Vibration Energy Harvesting Beam Systems

2018 ◽  
Vol 140 (3) ◽  
Author(s):  
Chin An Tan ◽  
Shahram Amoozegar ◽  
Heather L. Lai
Keyword(s):  
Energy Harvesting ◽  
Transfer Function ◽  
Boundary Conditions ◽  
Vibration Energy ◽  
System Response ◽  
Vibration Energy Harvesting ◽  
Energy Harvesters ◽  
Piezoelectric Energy ◽  
Transfer Function Analysis ◽  
Intermediate Constraints

This paper presents a novel formulation and exact solution of the frequency response function (FRF) of vibration energy harvesting beam systems by the distributed transfer function method (TFM). The method is applicable for coupled electromechanical systems with nonproportional damping, intermediate constraints, and nonclassical boundary conditions, for which the system transfer functions are either very difficult or cumbersome to obtain using available methods. Such systems may offer new opportunities for optimized designs of energy harvesters via parameter tuning. The proposed formulation is also systematic and amenable to algorithmic numerical coding, allowing the system response and its derivatives to be computed by only simple modifications of the parameters in the system operators for different boundary conditions and the incorporation of feedback control principles. Examples of piezoelectric energy harvesters with nonclassical boundary conditions and intermediate constraints are presented to demonstrate the efficacy of the proposed method and its use as a design tool for vibration energy harvesters via tuning of system parameters. The results can also be used to provide benchmarks for assessing the accuracies of approximate techniques.

MEMS Energy Harvesting from Low-frequency and Low-g Vibrations

2015 ◽  
Vol 1782 ◽  
pp. 9-14
Author(s):  
Ruize Xu ◽  
Sang-Gook Kim
Keyword(s):  
Residual Stress ◽  
Energy Harvesting ◽  
Autonomous Systems ◽  
Scale Model ◽  
Vibration Energy ◽  
Frequency Range ◽  
Mechanical Resonator ◽  
Vibration Energy Harvesting ◽  
Energy Harvesters ◽  
Working Frequency

ABSTRACTMEMS vibration energy harvesting has been investigated to provide energy to low-power micro-electronic systems and potentially to enable batteryless autonomous systems. While enjoying the small footprint hence the ability to be embedded in other systems, MEMS vibration energy harvesters are working at much higher frequencies and input vibration amplitudes. The mechanical resonator based energy harvesters seem inherently have such high frequency due to the scaling of the device dimension. Lower the working frequency range and input vibration amplitude are possible by optimizing the dimensions of the device. However, we are viewing the problem from a different perspective and proposing a solution based on employing the common material property of the micro-fabricated thin film – residual stress. We found that by taking advantage of the compressive residual stress, a bi-stable mechanical resonator could be built and a new spectrum of dynamics can be brought into energy harvesting, which could lower the working frequency range and input g value. The concepts have been analytically simulated and experimentally verified by a meso-scale model.

Testing and Simulation of Vibration Energy Harvesting for Magnetostrictive Clad Steel Plates

2018 ◽  
Vol 2018 (0) ◽  
pp. OS1015
Author(s):  
Zhenjun Yang ◽  
Hiroki Kurita ◽  
Ryuichi Onodera ◽  
Tsuyoki Tayama ◽  
Daiki Chiba ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Steel Plates ◽  
Vibration Energy ◽  
Vibration Energy Harvesting ◽  
Clad Steel

scholarly journals On the Effect of the Electrical Load On Vibration Energy Harvesting Under Stochastic Resonance

2020 ◽  
Author(s):  
Panagiotis Alevras
Keyword(s):  
Energy Harvesting ◽  
Stochastic Resonance ◽  
Power Output ◽  
Broadband Noise ◽  
Nonlinear Dependence ◽  
Vibration Energy ◽  
Optimal Harvesting ◽  
Vibration Energy Harvesting ◽  
Promising Alternative ◽  
Energy Harvesters

Abstract Vibration energy harvesting is a promising alternative for powering wireless electronics in many practical applications. Ambient vibration energy in the surrounding space of a target application often involves an inescapable randomness in the exciting vibrations, which may lead to deterioration of the expected power gains due to insufficient tuning and limited optimal designs. Stochastic resonance is a concept that has recently been considered for exploiting this randomness towards improving power generation from vibrating systems, based on the co-existence of near-harmonic vibrations with broadband noise excitations in a variety of practical mechanical systems. This paper is concerned with the optimal conditions for stochastic resonance in vibration energy harvesters, exploring the frequently neglected effect of realistic architectures of the electrical circuit on the system dynamics and the achievable power output. A parametric study is conducted using a numerical Path Integration method to compute the response Probability Density Functions of vibration energy harvesters, focusing on the effect of standard electrical components; namely, a load resistor, a rectifier and a capacitor. It is found that the conditions for stochastic resonance exhibit a nonlinear dependence on the weak harmonic excitation amplitude. Moreover, the modified nonlinear dissipation properties introduced by the rectifier and the capacitor lead to a trade-off between the power output and the non-conducting dynamics that is essential in order to determine optimal harvesting designs.

scholarly journals An Optimum Design of Clocked AC-DC Charge Pump Circuits for Vibration Energy Harvesting

Electronics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2031
Author(s):  
Jinming Ye ◽  
Toru Tanzawa
Keyword(s):  
Energy Harvesting ◽  
Output Voltage ◽  
Charge Pump ◽  
Design Flow ◽  
Design Parameters ◽  
Vibration Energy ◽  
Output Current ◽  
Vibration Energy Harvesting ◽  
Wide Range ◽  
Target Output

This paper shows how clocked AC-DC charge pump circuits can be optimally designed to have the minimum circuit area for small form factor vibration energy harvesting. One can determine an optimum number of stages with simple equations and then determine the capacitance of each pump capacitor to have a target output current at a target output voltage. The equations were verified under a wide range of design parameters by comparing the output current with the simulated one. The output current of the circuit designed by the equations was in good agreement with the simulated result, to within 5% for 98% of the 1600 designs with different parameters. We also propose a design flow to help designers determine the initial design parameters of a clocked AC-DC charge pump circuit (i.e., the number of stages, capacitance per stage, and the total size of rectifying devices) under the condition that the saturation current of a unit of the rectifying device, clock frequency, amplitude of the voltage generated by the energy transducer, target output voltage, and target output current are given. SPICE simulation results validated theoretical results with an error of 3% in terms of the output current when a clocked AC-DC charge pump was designed to output current of 1 μA at 2.5 V from a vibration energy harvester with an AC voltage amplitude of 0.5 V.

Magnetostrictive clad steel plates for high-performance vibration energy harvesting

2018 ◽  
Vol 112 (7) ◽  
pp. 073902 ◽  
Author(s):  
Zhenjun Yang ◽  
Kenya Nakajima ◽  
Ryuichi Onodera ◽  
Tsuyoki Tayama ◽  
Daiki Chiba ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
High Performance ◽  
Steel Plates ◽  
Vibration Energy ◽  
Vibration Energy Harvesting ◽  
Clad Steel
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