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A bistable energy harvester for self-powered sensing in rail transport condition monitoring

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conference contribution
posted on 11.10.2021, 08:57 by Hailing FuHailing Fu, Yuan Zhang, Mengzhou Liu, Yong Qin, Eric M. Yeatman
A bistable vibration energy harvester for rail transport is proposed and developed to harness low-frequency train vibrations for self-powered condition monitoring. The operational vibration data collected from a train is analyzed to identify the design requirements. A free-sliding magnet is placed in a tube with two fixed magnets and limit springs to provide two stable positions for the movable magnet. This bistable behavior enhances the energy harvesting performance and operational bandwidth. A prototype was fabricated and tested using conditions similar to the real train operational conditions. A broad operation bandwidth (20 - 40 Hz) was obtained due to bi-stability. A peak output power of 1.1 mW was measured at 30 Hz and 6g with a 600 \Omega resistive load.

Funding

International Exchanges programme (IEC\NSFC\181655) funded by the Royal Society, UK and the National Natural Science Foundation of China

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers)

Pages

140 - 143

Source

21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers)

Publisher

IEEE

Version

AM (Accepted Manuscript)

Rights holder

© IEEE

Publisher statement

Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Publication date

2021-08-06

Copyright date

2021

ISBN

9781665412674

eISSN

2167-0021

Language

en

Location

Orlando, FL, USA

Event dates

20-24 June 2021

Depositor

Dr Hailing Fu. Deposit date: 8 October 2021