Design and Simulation Analysis of Vibration Energy Harvesting System Based on ADAMS

2019 ◽  
Author(s):  
Ziheng Zhu ◽  
Lin Xu ◽  
Mohamed A. A. Abdelkareem ◽  
Junyi Zou ◽  
Jia Mi
Keyword(s):  
Energy Harvesting ◽  
Vibration Energy ◽  
Bench Test ◽  
Test Results ◽  
Human Beings ◽  
Vibration Energy Harvesting ◽  
Wide Range ◽  
Harvesting Efficiency ◽  
Simulation Results ◽  
Energy Harvesting Efficiency

Abstract With the recent energy crisis, the new energy harvesting technologies have become one of the hot spots in engineering academic research and industrial applications. By its wide range of application fields, vibration energy harvesting technologies have been gradually developed and utilized in which an efficient and stable harvester technology is one of the recent key problems. In order to improve energy harvesting efficiency and reduce energy loss caused by motor inertial commutation, many mechanical structures or hydraulic structures that convert reciprocating vibration energy into single direction rotation of motor are proposed. Although these methods can improve energy harvesting efficiency, they can have negative effects in some cases, especially in the case of vibration energy harvesting from human beings. This paper proposes a vibration harvesting mechanism with mechanical rectification filter function applied to backpack. The prototype model of the system was established in SolidWorks and imported into ADAMS. Thereafter, dynamic analyses of mechanical rectification filtering characteristics and meshing characteristics of one-way clutch were simulated in ADAMS. Based on ADAMS, parametric design analysis and its influence on the mechanical rectification characteristics were investigated. The simulation results were validated by bench test results. Simulation results is done by ADAMS and the results match well with bench test results.

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.

Performance Evaluation of Suspended Energy Harvesting Backpack Using Half-Wave Mechanical Rectification

2020 ◽  
Author(s):  
Jia Mi ◽  
Qiaofeng Li ◽  
Mingyi Liu ◽  
Xiaofan Li ◽  
Lei Zuo
Keyword(s):  
Energy Harvesting ◽  
Output Power ◽  
Average Power ◽  
Bench Test ◽  
Test Results ◽  
Human Beings ◽  
Frequency Range ◽  
Average Output ◽  
Full Wave ◽  
Half Wave

Abstract Human beings are becoming more and more dependent on electronic devices, such as smart phones, smart watches, GPS, etc. This paper presents the design, modeling and testing of a novel suspended energy harvesting backpack using half-wave mechanical rectification. The proposed half-wave rectification mechanism can convert bidirectional linear vibration into unidirectional rotation with nonlinear inertia. Compared with full-wave mechanical rectification, the proposed half-wave rectification is designed only to convert the motion in one of the vibration directions while remaining idle in the other direction. Numerical simulation shows the proposed half-wave rectification based suspended energy harvesting backpack can obtain about two times of the average output power as the previous full-wave rectification design while also maintaining larger output power in the wideband frequency range. Bench test results indicate that the proposed half-wave rectification-based energy harvesting backpack can harvest 6.7 W (peak)/2.1 W (average) under 2 Hz and 6 mm excitation with a 31.8 kg payload, which is a significant improvement compared with 1.9 W(peak)/0.9 W (average) for the counterpart of full-wave rectification system. In addition, bench test results also validate the energy harvesting in wideband frequency range. Treadmill tests demonstrate an average power range of 1.2–11.0 W under walking speeds of 3.2–6.4 km/h with a 13.6 kg payload.

Design, Modeling and Lab Test of Electromagnetic Energy Harvester for Railway Vehicle Suspensions

2017 ◽  
Author(s):  
Yu Pan ◽  
Fengwei Liu ◽  
Ruijin Jiang ◽  
Zhiwen Tu ◽  
Lei Zuo
Keyword(s):  
Energy Harvesting ◽  
Energy Harvester ◽  
Mechanical Efficiency ◽  
Bench Test ◽  
Railway Vehicle ◽  
Freight Train ◽  
Vehicle Suspensions ◽  
Harvesting Efficiency ◽  
Energy Harvesting Efficiency ◽  
Smart Technologies

To enable the smart technologies, such as the GPS, suspension active and semi-active controls and electromagnetic braking system, on the railway freight vehicles, the electricity is required and in needed. In this paper, we proposed a rack-pinion based freight train suspension energy harvester with mechanical-motion-rectifier (MMR) mechanism, to harvest the energy that usually dissipated and wasted during suspension vibration. The special mechanism with one way clutches engagement and disengagement during the working period makes the harvester convert the bi-direction suspension linear motion into a generator unidirectional rotation, which improve the transmission reliability and increase the energy harvesting efficiency. Nonlinear model of the energy harvester is established in this paper to analyze the dynamic characteristic of the freight train energy harvester and bench test are carried out to experimentally characterize the proposed energy harvester. The results show that under a certain freight vehicle suspension vibration condition, the proposed energy harvester can get a peak 292W and an average 34W power, which has a much better energy harvesting performance than any other existing energy harvesting technology used for the railway vehicles. Moreover, the proposed energy harvester can reach a 70% mechanical efficiency, which shows that the MMR’s advantage in improving the energy harvesting efficiency.

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.

A Wide Frequency Range Tunable Vibration Energy Harvesting Device Using Magnetically Induced Stiffness

2007 ◽  
Author(s):  
Vinod R. Challa ◽  
M. G. Prasad ◽  
Yong Shi ◽  
Frank Fisher
Keyword(s):  
Energy Harvesting ◽  
Resonance Frequency ◽  
Vibration Energy ◽  
Frequency Range ◽  
Vibration Energy Harvesting ◽  
Magnetic Forces ◽  
Resonance Frequencies ◽  
Wide Range ◽  
Continuous Power ◽  
Energy Harvesting Devices

Although wireless sensors show extensive promise across a wide range of applications, one requirement necessary for widespread deployment is a suitable long-life power source. Self sustainable powering techniques allow for efficient use of these sensors, whose potential life is usually longer than that of the power sources. Vibration energy harvesting techniques offer to have the potential to be employed in powering these devices. The most important requirement of vibration energy harvesting devices is that they be in resonance to harvest energy efficiently. Most of the vibration energy harvesting devices built, irrespective of the mechanism involved, are based on a single resonance frequency, with the efficiency of these devices is very much limited to that specific frequency. In this paper, a frequency tunable mechanism is presented which allows the energy harvesting device to generate power over a wide range of frequencies. External magnetic forces have been used to induce additional stiffness which is variable depending on the distance between the magnets. This technique allowed us to tune the resonance frequencies to have +/− 20% of the original (untuned) resonant frequency. Further, the device can be tuned to higher and lower frequency with respect to the untuned resonance frequency by using attractive and repulsive magnetic forces, respectively. As a proof-of-concept, a piezoelectric cantilever-based energy harvesting device with a natural frequency of 26 Hz was fabricated whose resonance frequency was successfully tuned over a frequency range of 22 Hz to 32 Hz, enabling a continuous power output of 240 μW to 280 μW over the entire frequency range. The tuning mechanism can be employed to any vibrating structure.

Design and modeling of a flexible longitudinal zigzag structure for enhanced vibration energy harvesting

2016 ◽  
Vol 28 (3) ◽  
pp. 367-380 ◽  
Author(s):  
Shengxi Zhou ◽  
Weijia Chen ◽  
Mohammad H Malakooti ◽  
Junyi Cao ◽  
Daniel J Inman
Keyword(s):  
Theoretical Model ◽  
Energy Harvesting ◽  
Free Vibration Analysis ◽  
Free Vibrations ◽  
Vibration Energy ◽  
Vibration Energy Harvesting ◽  
Element Analysis ◽  
Low Frequencies ◽  
Wide Range ◽  
Zigzag Structure

The use of piezoelectric materials for vibration energy harvesting at low frequencies is challenging and requires innovative structural design. Here, a flexible longitudinal zigzag structure is developed to enhance energy harvesting at low-frequency ambient vibrations. The proposed structure is composed of orthogonal beams which enable vibration energy harvesting in two directions. A theoretical model based on Euler–Bernoulli beam theory is formulated to study the dynamic response of the structure under free vibrations. The free vibration analysis demonstrates that low operating frequencies can be obtained by increasing the number of, and/or the length of, beams in the proposed structure. To validate the accuracy of the developed theoretical model, finite element analysis is performed using ANSYS. On verification of the model’s accuracy, the piezoelectric effect of the active beams is considered in the model to evaluate the energy harvesting performance of the proposed flexible longitudinal zigzag structure. Numerical results demonstrate that the output voltage and the working frequency of these energy harvesting structures can be tailored through simply altering the number of beams. Overall, the results indicate that the proposed structure is capable of efficient energy conversion at low frequencies, which makes them suitable for a wide range of working conditions.

A Vibration Energy Harvesting Structure, Tunable Over a Wide Frequency Range Using Minimal Actuation

2013 ◽  
Author(s):  
John Heit ◽  
David Christensen ◽  
Shad Roundy
Keyword(s):  
Energy Harvesting ◽  
Resonance Frequency ◽  
Frequency Tuning ◽  
Wide Frequency Range ◽  
Design Parameters ◽  
Vibration Energy ◽  
Test Results ◽  
Vibration Energy Harvesting ◽  
Frequency Tunability ◽  
Added Benefit

This paper introduces a novel vibration energy harvesting structure with a resonance frequency that is tunable over a large range using a simple compact mechanical adjustment that alters the structural stiffness. The frequency tuning requires minimal actuation that can be “turned off” while maintaining the new resonance frequency. Testing shows that the natural frequency can be adjusted from 32 Hz to 85 Hz. The structure is coupled with an electromagnetic transducer to generate power. Test results at varying excitation frequencies and amplitudes demonstrate tunable power generation over a very wide bandwidth. In addition to frequency tunability, the structure is a nonlinear softening spring, which provides the added benefit of a passively wider bandwidth for specific ranges of the design parameters.

scholarly journals Wake-foil interactions and energy harvesting efficiency in tandem oscillating foils

2021 ◽  
Vol 6 (7) ◽  
Author(s):  
Bernardo Luiz R. Ribeiro ◽  
Yunxing Su ◽  
Quentin Guillaumin ◽  
Kenneth S. Breuer ◽  
Jennifer A. Franck
Keyword(s):  
Energy Harvesting ◽  
Harvesting Efficiency ◽  
Energy Harvesting Efficiency ◽  
Oscillating Foils

scholarly journals Experiment Investigation of Bistable Vibration Energy Harvesting with Random Wave Environment

2021 ◽  
Vol 11 (9) ◽  
pp. 3868
Author(s):  
Qiong Wu ◽  
Hairui Zhang ◽  
Jie Lian ◽  
Wei Zhao ◽  
Shijie Zhou ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Harvesting ◽  
Cantilever Beam ◽  
Large Scale ◽  
Low Frequency ◽  
Vibration Energy ◽  
Random Wave ◽  
Periodic Signal ◽  
Vibration Energy Harvesting ◽  
Motion Activity

The energy harvested from the renewable energy has been attracting a great potential as a source of electricity for many years; however, several challenges still exist limiting output performance, such as the package and low frequency of the wave. Here, this paper proposed a bistable vibration system for harvesting low-frequency renewable energy, the bistable vibration model consisting of an inverted cantilever beam with a mass block at the tip in a random wave environment and also develop a vibration energy harvesting system with a piezoelectric element attached to the surface of a cantilever beam. The experiment was carried out by simulating the random wave environment using the experimental equipment. The experiment result showed a mass block’s response vibration was indeed changed from a single stable vibration to a bistable oscillation when a random wave signal and a periodic signal were co-excited. It was shown that stochastic resonance phenomena can be activated reliably using the proposed bistable motion system, and, correspondingly, large-scale bistable responses can be generated to realize effective amplitude enlargement after input signals are received. Furthermore, as an important design factor, the influence of periodic excitation signals on the large-scale bistable motion activity was carefully discussed, and a solid foundation was laid for further practical energy harvesting applications.

scholarly journals Feasibility study of multi-directional vibration energy harvesting with a frame harvester

2014 ◽  
Author(s):  
Hao Wu ◽  
Lihua Tang ◽  
Yaowen Yang ◽  
Chee Kiong Soh
Keyword(s):  
Energy Harvesting ◽  
Feasibility Study ◽  
Vibration Energy ◽  
Vibration Energy Harvesting
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