Energy harvesting from a DE-based dynamic vibro-impact system

Yurchenko, Daniil; Val, Dimitri V.; Lai, Zhihui; Gu, Gunmo; Thomson, Gordon

doi:10.1088/1361-665x/aa8285

Cited by 48 publications

(13 citation statements)

References 40 publications

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“…However, the results have not been validated through experiments. In 2017, Yurchenko [61] proposed the vibro-impact (VI) DEG system. Afterward, many researchers further investigated VI-DEG [62][63][64], which can harvest vibration energy from the environment.…”

Section: Wind Energymentioning

confidence: 99%

Dielectric Elastomer Generator for Electromechanical Energy Conversion: A Mini Review

Bao

Chen

et al. 2021

Sustainability

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The dielectric elastomer generator (DEG) has attracted attention in converting mechanical energy into electrical energy, due to its high energy density, fast response, and light weight, which together make DEG a promising technology for electromechanical conversion. In this article, recent research papers on DEG are reviewed. First, we present the working principles, parameters, materials, and deformation modes of DEG. Then, we introduce DEG prototypes in the field of collecting mechanical energy, including small-scale applications for wind energy and human motion energy, and large-scale applications for wave energy. At the end of the review, we discuss the challenges and perspectives of DEG. We believe that DEG will play an important role in mechanical energy harvesting in the future.

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Section: Wind Energymentioning

confidence: 99%

Dielectric Elastomer Generator for Electromechanical Energy Conversion: A Mini Review

Bao

Chen

et al. 2021

Sustainability

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“…To study the electrical outputs of the SSI model at the first impact, the dimensional parameters of the DEM at different stages shown in h . The area can be obtained by [56] 22 2…”

Section: B Parametric Analysis Of the Ssi Modelmentioning

confidence: 99%

Investigation on the Impact-Based Energy Conversion of a Dielectric Elastomer Membrane

et al. 2020

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Dielectric elastomer generators (DEGs) provide a new solution for vibrational energy harvesting. Currently, a type of impact-based DEGs, which can harvest energy from ambient vibrations, has been proposed and studied through simulations. However, the energy conversion mechanism and the performance evaluation approach of such impact-based DEGs have not been fully studied yet, thus limiting the reliability of the research on the system design/optimization and performance evaluation. In this paper, a single-sided impact (SSI) model is proposed to reveal the impact-based energy conversion mechanism. Based on this model, a complete four-stage impact process is analyzed to reveal the energy conversion mechanism, and the electrical outputs and energy conversion efficiency are derived as the energy harvesting performance evaluation indexes. To use the developed analytical model to predict the system electrical response accurately, some important parameters including the coefficient of restitution (COR) and largest deflection of the membrane at impacts were obtained experimentally, and the system output voltages at impacts were measured to verify the theoretical approaches in calculating the system electrical outputs and studying the parameters' influences. Furthermore, the influences of the pre-stretched ratio, impact velocity, and input voltage on the system energy harvesting performance are studied through simulations. The research results can provide guidelines to improve the energy harvesting performance of the impact-based DEGs in real applications.

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“…Recently a novel DE-based device for EH from a vibrational motion has been proposed in [87,88]. The main idea centres around a hollow cylinder, excited by an external force, and a free moving internal ball (friction was neglected), motion of which is constrained at both the ends of the cylinder by DE membranes.…”

Section: Vibro-impact Harvestermentioning

confidence: 99%

Dielectric Elastomers for Energy Harvesting

Thomson¹,

Yurchenko²,

Val

2018

Energy Harvesting

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Dielectric elastomers are a type of electroactive polymers that can be conveniently used as sensors, actuators or energy harvesters and the latter is the focus of this review. The relatively high number of publications devoted to dielectric elastomers in recent years is a direct reflection of their diversity, applicability as well as nontrivial electrical and mechanical properties. This chapter provides a review of fundamental mechanical and electrical properties of dielectric elastomers and up-to-date information regarding new developments of this technology and it's potential applications for energy harvesting from various vibration sources explored over the past decade.

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Energy harvesting from a DE-based dynamic vibro-impact system

Cited by 48 publications

References 40 publications

Dielectric Elastomer Generator for Electromechanical Energy Conversion: A Mini Review

Dielectric Elastomer Generator for Electromechanical Energy Conversion: A Mini Review

Investigation on the Impact-Based Energy Conversion of a Dielectric Elastomer Membrane

Dielectric Elastomers for Energy Harvesting

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