Journal ArticleDOI
Novel piezoelectric bistable oscillator architecture for wideband vibration energy harvesting
TLDR
In this paper, a buckled spring-mass architecture is proposed to convert the energy of the dynamic mass to electrical energy in the piezoelectric materials as efficiently as possible.Abstract:
Bistable vibration energy harvesters are attracting more and more interest because of their capability to scavenge energy over a large frequency band. The bistable effect is usually based on magnetic interaction or buckled beams. This paper presents a novel architecture based on amplified piezoelectric structures. This buckled spring‐mass architecture allows the energy of the dynamic mass to be converted into electrical energy in the piezoelectric materials as efficiently as possible. Modeling and design are performed and a normalized expression of the harvester behavior is given. Chirp and band-limited noise excitations are used to evaluate the proposed harvester’s performances. Simulation and experimental results are in good agreement. A method of using a spectrum plot for investigating the interwell motion is presented. The effect of the electric load impedance matching strategy is also studied. Results and comparisons with the literature show that the proposed device combines a large bandwidth and a high power density. (Some figures may appear in colour only in the online journal)read more
Citations
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Journal ArticleDOI
A review of energy harvesting using piezoelectric materials: state-of-the-art a decade later (2008–2018)
TL;DR: This paper presents an update to the authors' previous review paper by summarizing the notable developments in the field of piezoelectric energy harvesting through the past decade.
Journal ArticleDOI
Mechanical modulations for enhancing energy harvesting: Principles, methods and applications
Hong-Xiang Zou,Hong-Xiang Zou,Lin-Chuan Zhao,Qiu-Hua Gao,Lei Zuo,Feng-Rui Liu,Ting Tan,Kexiang Wei,Wen-Ming Zhang +8 more
TL;DR: In this paper, the key roles of mechanical modulations for energy harvesting are emphasized, and the methods and principles of mechanical modulation and their applications to energy harvesting systems are reviewed and classified into three categories: excitation type conversions, frequency up-conversions, force/motion amplifications.
Journal ArticleDOI
A multi-stable energy harvester: Dynamic modeling and bifurcation analysis
Pilkee Kim,Jongwon Seok +1 more
TL;DR: In this article, the dynamic and energy properties of a multi-stable bimorph cantilever energy harvester with magnetic attraction effect have been investigated and the mechanism that governs the formation of this multi-stability is thoroughly identified and examined thorough a bifurcation analysis performed on the system's equilibrium solutions.
Journal ArticleDOI
Electrostatic vibration energy harvester with combined effect of electrical nonlinearities and mechanical impact
Philippe Basset,Dimitri Galayko,Francesco Cottone,Raphael Guillemet,Elena Blokhina,Frederic Marty,Tarik Bourouina +6 more
TL;DR: In this article, the design, characterization and theoretical analysis of a capacitive vibration energy harvester is presented, which is intended for operation in a wide frequency band due to the combination of stop-end effects and a strong biasing electrical field.
Journal ArticleDOI
Low frequency piezoelectric energy harvesting at multi vibration mode shapes
TL;DR: In this article, a multi-degree of freedom micro-energy harvester has been designed, fabricated, and tested and sub 100 Hz natural frequencies have been achieved and the resonant frequencies at its first three mode shapes are within the low ambient vibration frequency range.
References
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Journal ArticleDOI
A study of low level vibrations as a power source for wireless sensor nodes
TL;DR: The goal of this paper is not to suggest that the conversion of vibrations is the best or most versatile method to scavenge ambient power, but to study its potential as a viable power source for applications where vibrations are present.
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TL;DR: A new method based on the exploitation of the dynamical features of stochastic nonlinear oscillators is shown to outperform standard linear oscillators and to overcome some of the most severe limitations of present approaches.
Journal ArticleDOI
Toward energy harvesting using active materials and conversion improvement by nonlinear processing
TL;DR: This technique, called synchronized switch harvesting (SSH), is derived from the synchronized switch damping (SSD), which is a nonlinear technique previously developed to address the problem of vibration damping on mechanical structures, results in a significant increase of the electromechanical conversion capability of piezoelectric materials.
Journal ArticleDOI
Energy harvesting from the nonlinear oscillations of magnetic levitation
Brian P. Mann,Neil D. Sims +1 more
TL;DR: In this article, the authors investigated the design and analysis of a novel energy harvesting device that uses magnetic levitation to produce an oscillator with a tunable resonance and derived the governing equations for the mechanical and electrical domains to show the designed system reduces to the form of a Duffing oscillator under both static and dynamic loads.
Journal ArticleDOI
Nonlinear dynamics for broadband energy harvesting: Investigation of a bistable piezoelectric inertial generator
TL;DR: In this paper, a bistable inertial oscillator comprised of permanent magnets and a piezoelectric cantilever beam is used to demonstrate enhanced capabilities and new challenges.
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