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Special Issue "Modeling and Analysis of Energy Harvesters"

A special issue of Energies (ISSN 1996-1073).

Deadline for manuscript submissions: 10 December 2019.

Special Issue Editors

Guest Editor
Dr. Abdessattar Abdelkefi

Mechanical and Aerospace Engineering, New Mexico State University, Las Cruces, NM, USA
Website | E-Mail
Interests: nonlinear dynamics; energy harvesting; MEMS & NEMS; fluid-structure interaction; vibration and control
Guest Editor
Prof. Grzegorz Litak

Department of Automation, Lublin University of Technology, Lublin, Poland
Website | E-Mail
Phone: +48 695132143
Interests: energy harvesting; fractional derivative; structural health monitoring; shape memory alloys

Special Issue Information

Dear Colleagues,

Vibrational energy harvesting was invented to provide a power supply to small monitoring devices from ambient vibrations. The development of this field was stimulated by increasing the demands for the powering of portable electronics, and extending the battery life. Proposed solutions consisted of a mechanical resonator and coupled transduces changing the mechanical energy into electrical power. In the last decade, energy harvesting has undergone spectacular changes through the application of nonlinear methods, in order to broaden the frequency input. Finally, new devices are not limited to the linear resonance frequency; they offer not only frequency range broadening via inclinations of the resonance curves, but also varieties of new nonlinear resonances for large enough inputs. This Issue will provide the modelling and analysis of nonlinear energy harvesting solutions, and feature their benefits by considering systems from a nano-scale to macro-scale.

Dr. Abdessattar Abdelkefi
Prof. Grzegorz Litak
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • energy harvesting
  • nonlinear dynamics
  • smart material
  • multiple responses
  • broadband effect
  • size dependency

Published Papers (2 papers)

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Research

Open AccessArticle
Dynamic Modeling and Structural Optimization of a Bistable Electromagnetic Vibration Energy Harvester
Energies 2019, 12(12), 2410; https://doi.org/10.3390/en12122410
Received: 21 May 2019 / Revised: 19 June 2019 / Accepted: 20 June 2019 / Published: 23 June 2019
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Abstract
A novel bistable electromagnetic vibration energy harvester (BEMH) is constructed and optimized in this study, based on a nonlinear system consisting mainly of a flexible membrane and a magnetic spring. A large-amplitude transverse vibration equation of the system is established with the general [...] Read more.
A novel bistable electromagnetic vibration energy harvester (BEMH) is constructed and optimized in this study, based on a nonlinear system consisting mainly of a flexible membrane and a magnetic spring. A large-amplitude transverse vibration equation of the system is established with the general nonlinear geometry and magnetic force. Firstly, the mathematical model, considering the higher-order nonlinearities given by nonlinear Galerkin method, is applied to a membrane with a co-axial magnet mass and magnetic spring. Secondly, the steady vibration response of the membrane subjected to a harmonic base motion is obtained, and then the output power considering electromagnetic effect is analytically derived. On this basis, a parametric study in a broad frequency domain has been achieved for the BEMH with different radius ratios and membrane thicknesses. It is demonstrated that model predictions are both in close agreement with results from the finite element simulation and experiment data. Finally, the proposed efficient solution method is used to obtain an optimizing strategy for the design of multi-stable energy harvesters with the similar flexible structure. Full article
(This article belongs to the Special Issue Modeling and Analysis of Energy Harvesters)
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Open AccessCommunication
Exploiting Elastically Supported Masses in Cantilever for Resonance Frequencies Down-Shifted Vibration Energy Harvester
Energies 2019, 12(11), 2207; https://doi.org/10.3390/en12112207
Received: 29 April 2019 / Revised: 4 June 2019 / Accepted: 6 June 2019 / Published: 10 June 2019
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Abstract
This paper presents a piezoelectric vibration energy harvester (PVEH) with resonance frequencies shifted down by elastically supported masses. The added elastic supporters can diminish the equivalent stiffness of the whole structure, leading to an evident decline in the resonance frequency of the cantilever [...] Read more.
This paper presents a piezoelectric vibration energy harvester (PVEH) with resonance frequencies shifted down by elastically supported masses. The added elastic supporters can diminish the equivalent stiffness of the whole structure, leading to an evident decline in the resonance frequency of the cantilever body. Meantime, a new resonant peak is generated in the lower frequency range. The resonant frequency of the proposed PVEH can be easily adjusted by replacing the rubber band of the elastic support. The constructed configuration is theoretically investigated and experimentally verified. Compared with the conventional cantilever, the proposed device achieved a 46% decrease in resonance frequency and 87% enhancement in output power. Full article
(This article belongs to the Special Issue Modeling and Analysis of Energy Harvesters)
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Graphical abstract

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