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A pendulum-based rotational energy harvester for self-powered monitoring of rotating systems in the era of industrial digitization

journal contribution
posted on 2024-07-01, 14:12 authored by Sayed MasabiSayed Masabi, Hailing Fu, James FlintJames Flint, Stephanos TheodossiadesStephanos Theodossiades
Wireless condition monitoring of rotating systems, including vehicle powertrains and wind turbines, is a key for continuously assessing the operational performance in the era of industrial digitization. However, one of their major challenges revolve around the dependence on power supply from batteries. Hence, this paper presents the concept, theoretical model, and experimental study of a pendulum-based energy harvester for high-speed rotational systems. The proposed design harvests energy from rotating shafts by using a suspended eccentric pendulum-based configuration and requires only one anchor point with the host to extract mechanical energy. A numerical model was established to study the dynamics and the electromechanical properties of the harvester. An experimental prototype was developed based on the key parameters determined from the numerical study and mounted on an electric motor-driven shaft for testing. The fabricated device was able to stably operate up to 250 rad/s input speed with an eccentric mass as low as 30 g where 104.5 mW RMS was measured through 450Ω resistive load. An analytical model is developed to outline the critical operating conditions and relationship between the design parameters. Finally, a self-powered wireless sensing system is established employing the harvester to measure temperature data near the operating environment.

Funding

Loughborough University

National Natural Science Foundation of China (62303053, 61933002)

Beijing Natural Science Foundation, China under Grant L233003

Aeronautical Science Foundation of China (20230009072004)

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Applied Energy

Volume

365

Issue

2024

Publisher

Elsevier

Version

  • AM (Accepted Manuscript)

Rights holder

© Elsevier

Publisher statement

This paper was accepted for publication in Applied Energy published by Elsevier. The final publication is available at https://doi.org/10.1016/j.apenergy.2024.123200. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

2024-04-08

Publication date

2024-04-21

Copyright date

2024

ISSN

0306-2619

eISSN

1872-9118

Language

  • en

Depositor

Prof Stephanos Theodossiades. Deposit date: 18 June 2024

Article number

123200

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