scholarly journals On the Nonlinear Behavior of the Piezoelectric Coupling on Vibration-Based Energy Harvesters

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Luciana L. Silva ◽  
Marcelo A. Savi ◽  
Paulo C. C. Monteiro ◽  
Theodoro A. Netto
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Materials ◽  
Constitutive Models ◽  
Piezoelectric Element ◽  
Nonlinear Behavior ◽  
Nonlinear Effects ◽  
Experimental Tests ◽  
Electrical Circuit ◽  
Wide Range ◽  
Piezoelectric Coupling

Vibration-based energy harvesting with piezoelectric elements has an increasing importance nowadays being related to numerous potential applications. A wide range of nonlinear effects is observed in energy harvesting devices and the analysis of the power generated suggests that they have considerable influence on the results. Linear constitutive models for piezoelectric materials can provide inconsistencies on the prediction of the power output of the energy harvester, mainly close to resonant conditions. This paper investigates the effect of the nonlinear behavior of the piezoelectric coupling. A one-degree of freedom mechanical system is coupled to an electrical circuit by a piezoelectric element and different coupling models are investigated. Experimental tests available in the literature are employed as a reference establishing the best matches of the models. Subsequently, numerical simulations are carried out showing different responses of the system indicating that nonlinear piezoelectric couplings can strongly modify the system dynamics.

Energy Harvesting From Impulsive Loads Using Intentional Essential Nonlinearities

2010 ◽  
Vol 133 (1) ◽  
Author(s):  
D. Dane Quinn ◽  
Angela L. Triplett ◽  
Alexander F. Vakakis ◽  
Lawrence A. Bergman
Keyword(s):  
Energy Harvesting ◽  
Electromechanical Coupling ◽  
Piezoelectric Element ◽  
Nonlinear Behavior ◽  
Harmonic Excitation ◽  
Frequency Interval ◽  
Resistive Load ◽  
Nonlinear Harvesting ◽  
Energy Harvesting System ◽  
Energy Harvesting Devices

Energy harvesting devices designed with intentional nonlinearities offer the possibility of increased performance under broadband excitations and realistic environmental conditions. This work considers an energy harvesting system based on the response of an attachment with strong nonlinear behavior. The electromechanical coupling is achieved with a piezoelectric element across a resistive load. When the system is subject to harmonic excitation, the harvested power from the nonlinear system exhibits a wider interval of frequencies over which the harvested power is significant, although an equivalent linear device offers greater efficiency at its design frequency. However, for impulsive excitation, the performance of the nonlinear harvesting system exceeds the corresponding linear system in terms of both magnitude of power harvested and the frequency interval over which significant power can be drawn from the mechanical vibrations.

scholarly journals Numerical and Experimental Study on Energy-Harvesting Piezoelectric Flags

2015 ◽  
Author(s):  
Yifan Xia ◽  
Sébastien Michelin ◽  
Olivier Doaré
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Materials ◽  
Electrical Power ◽  
Experimental Studies ◽  
Electrical Energy ◽  
Electrical Circuit ◽  
Flexible Plate ◽  
Critical Flow Velocity ◽  
Output Circuit ◽  
Harvesting Efficiency

Placed in a fluid flow, a cantilevered flexible plate flaps spontaneously above a critical flow velocity. The resulting self-sustained vibrations of such a flag may be used to produce electrical energy and power an output circuit using piezoelectric patches covering the flag that deforms with the flapping motion. Previous work showed only moderate harvesting efficiency with a resistive output circuit, but proposed numerous directions for improvement. We propose a numerical and experimental investigation of the coupled dynamics of such a fluid-solid-electric system, and analyze the influence of the output circuit on the dynamics and harvesting efficiency. In particular, inductive-resistive circuits are considered. Our numerical results show that such resonant circuits lead to a destabilization of the system and a spontaneous flapping at lower fluid velocities. Also they significantly increase the energy harvesting efficiency of the piezoelectric flags as a result of a frequency lock-in between the flag and the electrical circuit. Wind tunnel tests are performed with prototypes of piezoelectric flags and basic resonant circuits. We show that such circuits effectively enhance the energy harvesting performance when they are in resonance with the piezoelectric flag. Meanwhile, the internal resistance of the inductive elements also shows an important influence on the harvested electrical power. In both numerical and experimental studies, the importance of piezoelectric coupling strength is observed. Our results show that promising efficiency enhancements of such flow energy harvesters would be achieved through the optimization of the output circuit as well as development of new piezoelectric materials.

scholarly journals Improving energy harvesting in excited Duffing harvester device using a delayed piezoelectric coupling

2018 ◽  
Vol 241 ◽  
pp. 01010 ◽  
Author(s):  
Z. Ghouli ◽  
M. Hamdi ◽  
M. Belhaq
Keyword(s):  
Numerical Simulation ◽  
Time Delay ◽  
Energy Harvesting ◽  
Perturbation Technique ◽  
Electrical Circuit ◽  
Voltage Amplitude ◽  
Principal Resonance ◽  
Periodic Response ◽  
Coupling Parameters ◽  
Piezoelectric Coupling

The present work examines the influence of time delay introduced in the piezoelectric circuit of an excited Duffing harvester device with hardening stiffness on the vibration and voltage amplitudes. Specifically, we seek to exploit a delayed electrical circuit of the harvester to enhance its performance. We consider the case of a monostable system and we use a perturbation technique to approximate the periodic response and the corresponding voltage amplitude near the principal resonance. It is shown that for appropriate values of delay amplitude, the energy harvesting performance is improved over a certain range of coupling parameters and excitation frequencies. Numerical simulation is conducted to support the analytical predictions.

Numerical investigation of nonlinear mechanical and constitutive effects on piezoelectric vibration-based energy harvesting

2018 ◽  
Vol 85 (9) ◽  
pp. 565-579 ◽  
Author(s):  
Ana Carolina Cellular ◽  
Luciana L. da Silva Monteiro ◽  
Marcelo A. Savi
Keyword(s):  
Energy Harvesting ◽  
Numerical Investigation ◽  
Piezoelectric Materials ◽  
Mechanical Energy ◽  
Dynamical Behavior ◽  
Nonlinear Effects ◽  
Electrical Energy ◽  
Coupling Model ◽  
Mechanical Coupling ◽  
Piezoelectric Vibration

Abstract Vibration-based energy harvesting has the main objective to convert available environmental mechanical energy into electrical energy. Piezoelectric materials are usually employed to promote the mechanical-electrical conversion. This work deals with a numerical investigation that analyzes the influence of nonlinear effects in piezoelectric vibration-based energy harvesting. Duffing-type oscillator that can be either monostable or bistable represents mechanical nonlinearities. A quadratic constitutive electro-mechanical coupling model represents piezoelectric nonlinearities. The system performance is evaluated for different system characteristics being monitored by the input and the generated power. Numerical simulations are carried out exploring dynamical behavior of energy harvesting system evaluating different kinds of responses, including periodic and chaotic regimes.

scholarly journals Design of an acoustic sensor for fission gas release characterization devoted to JHR environment measurements

2021 ◽  
Vol 253 ◽  
pp. 04028
Author(s):  
F. Baudry ◽  
E. Rosenkrantz ◽  
P. Combette ◽  
D. Fourmentel ◽  
C. Destouches ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Piezoelectric Materials ◽  
Release Kinetics ◽  
Piezoelectric Element ◽  
Operating Conditions ◽  
Acoustic Sensor ◽  
Gas Release ◽  
Wide Range ◽  
Fission Gas ◽  
Fission Gas Release

Among numerous research projects devoted to the improvement of the nuclear fuel behaviour knowledge, the development of advanced instrumentation for in-pile experiments in Material Testing Reactor is of great interest. In the frame of JHR reactor, new requirements have arisen creating new constraints. An acoustic method was tested with success during a first experiment called REMORA 3 in 2010 and 2011, and the results were used to differentiate helium and fission gas release kinetics under transient operating conditions. This experiment was leading at OSIRIS reactor (CEA Saclay, France). The maximal temperature during the irradiation test was about 150 °C. [1], [2]. We have developed thick film transducers produced by screen-printing process. They offered a wide range of possible application for the development of acoustic sensors and piezoelectric structure for harsh temperature environment measurements [3]. We proposed a screen-printed modified Bismuth Titanate piezoelectric element on alumina substrate allowing acoustic measurements [4] for JHR environment. In this paper we will focus on the mechanical design of the new sensor. This acoustic sensor is composed of an acoustic element for generation and detection of acoustic waves propagating into a cavity filled with gaz. We will detail the choice of piezoelectric materials, the thickness of the different layers, the cavity shapes, the electrical connections, the means of assembly of the different parts. Theoretical and experimental results will be given. All that point will be discussed in terms of acoustic sensor sensitivity versus dimensional constraints, in the case of a high temperature range working.

scholarly journals Design and Evaluation of Double-Stage Energy Harvesting Floor Tile

2019 ◽  
Vol 11 (20) ◽  
pp. 5582 ◽  
Author(s):  
Isarakorn ◽  
Jayasvasti ◽  
Panthongsy ◽  
Janphuang ◽  
Hamamoto
Keyword(s):  
Energy Harvesting ◽  
Proof Mass ◽  
Electrical Power ◽  
Average Power ◽  
Piezoelectric Element ◽  
Floor Tile ◽  
Cover Plate ◽  
Piezoelectric Cantilever ◽  
Wide Range ◽  
Power And Energy

This paper introduces the design and characterization of a double-stage energy harvesting floor tile that uses a piezoelectric cantilever to generate electricity from human footsteps. A frequency up-conversion principle, in the form of an overshooting piezoelectric cantilever, plucked with a proof mass is utilized to increase energy conversion efficiency. The overshoot of the proof mass is implemented by a mechanical impact between a moving cover plate and a stopper to prevent damage to the plucked piezoelectric element. In an experiment, the piezoelectric cantilever of a floor tile prototype was excited by a pneumatic actuator that simulated human footsteps. The key parameters affecting the electrical power and energy outputs were investigated by actuating the prototype with a few kinds of excitation input. It was found that, when actuated by a single simulated footstep, the prototype was able to produce electrical power and energy in two stages. The cantilever resonated at a frequency of 14.08 Hz. The output electricity was directly proportional to the acceleration of the moving cover plate and the gap between the cover plate and the stopper. An average power of 0.82 mW and a total energy of 2.40 mJ were obtained at an acceleration of 0.93 g and a gap of 4 mm. The prototype had a simple structure and was able to operate over a wide range of frequencies.

Experimental Investigation of Energy Harvesting With Essential Nonlinearities

2011 ◽  
Author(s):  
Angela Triplett ◽  
D. Dane Quinn
Keyword(s):  
Energy Harvesting ◽  
Numerical Simulations ◽  
Electromagnetic Coupling ◽  
Average Power ◽  
Piezoelectric Element ◽  
Nonlinear Behavior ◽  
Harmonic Excitation ◽  
Linear Oscillator ◽  
Resistive Load ◽  
Sufficient Energy

The advancement of technology of portable electronics and devices has increased the need for self-sufficient energy sources. This work investigates the potentiality of a vibration-based energy harvesting system based on the response of an attachment with strong nonlinear behavior. The electromagnetic coupling is achieved by a piezoelectric element across a resistive load. Typical designs utilize a linear oscillator, which limits the peak harvesting performance to a narrow band of frequencies about the natural frequency of the oscillator. An essentially nonlinear cubic oscillator is shown, with proper design, to significantly improve the range of frequencies for sufficient harvesting when compared with a tuned linear oscillator design. Numerical simulations of the proposed model reveal this wider band of frequencies harvest significant power when the system is subjected to harmonic excitation. A physical model was developed and the acquired instantaneous voltage was recorded to calculate the average power over a resistive load and to experimentally validate the numerical simulations.

Simulation Studies on Energy Harvesting Characterisitcs and Storage Analysis Through Microcantilever Vibration

2017 ◽  
Vol 17 (01n02) ◽  
pp. 1760024 ◽  
Author(s):  
Ravi Teja Solleti ◽  
Kyatham Harikrishna ◽  
V. Velmurugan
Keyword(s):  
Energy Harvesting ◽  
Proof Mass ◽  
Piezoelectric Materials ◽  
Mems Devices ◽  
Energy Harvesters ◽  
Piezoelectric Energy ◽  
Wide Range ◽  
Mems Technology ◽  
Compact Design ◽  
And Storage

Vibrations can be a good source of energy and can be harvested and utilized by simple design and fabrication using the MEMS technology. Energy harvesting provides unending sources of energy for low-power electronics devices where the use of batteries is not feasible. Piezoelectric energy harvesters are widely considered because of their compact design, compatibility to MEMS devices and ability to respond to a wide range of frequencies freely available in the environment. In this project, a rectangular model for cantilever-based piezoelectric energy harvester is proposed with different designs like two layer, two layer with proof mass, four layer and four layer with proof mass designed with dimensions as 50[Formula: see text][Formula: see text]m[Formula: see text][Formula: see text][Formula: see text]50[Formula: see text][Formula: see text]m[Formula: see text][Formula: see text][Formula: see text]1[Formula: see text][Formula: see text]m for each layer using COMSOL Multiphysics 5.0. Simulation results were obtained using silicon as substrate, aluminium as electrodes and PZT-5H and ZnO as piezoelectric materials and the respective stress and voltages were obtained by applying a force acting on foot, train, roller coaster and a general value of 10[Formula: see text]N/m2 on top of the cantilever. The effects of varying geometrical dimensions of the device were also investigated.

Energy Harvesting Using Piezoelectric Materials on Microcantilevr Structure

2012 ◽  
Vol 2 (5) ◽  
pp. 252-255
Author(s):  
Rudresha K J Rudresha K J ◽  
◽  
Girisha G K Girisha G K
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Materials

Modeling of Strain Energy Harvesting in Pneumatic Tires Using Piezoelectric Transducer

2014 ◽  
Vol 42 (1) ◽  
pp. 16-34 ◽  
Author(s):  
Ali E. Kubba ◽  
Mohammad Behroozi ◽  
Oluremi A. Olatunbosun ◽  
Carl Anthony ◽  
Kyle Jiang
Keyword(s):  
Energy Harvesting ◽  
Strain Energy ◽  
Fiber Composite ◽  
Experimental Tests ◽  
Evaluation Study ◽  
Monitoring Systems ◽  
Monitoring Device ◽  
Optimum Location ◽  
Piezoelectric Fiber Composite ◽  
Piezoelectric Fiber

ABSTRACT This paper presents an evaluation study of the feasibility of harvesting energy from rolling tire deformation and using it to supply a tire monitoring device installed within the tire cavity. The developed technique is simulated by using a flexible piezoelectric fiber composite transducer (PFC) adhered onto the tire inner liner acting as the energy harvesting element for tire monitoring systems. The PFC element generates electric charge when strain is applied to it. Tire cyclic deformation, particularly at the contact patch surface due to rolling conditions, can be exploited to harvest energy. Finite element simulations, using Abaqus package, were employed to estimate the available strain energy within the tire structure in order to select the optimum location for the PFC element. Experimental tests were carried out by using an evaluation kit for the energy harvesting element installed within the tire cavity to examine the PFC performance under controlled speed and loading conditions.

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