한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제32권5호
  • /
  • Pages.483-490
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  • 2015
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
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자석바퀴기반 자기변형 에너지하베스터의 개념증명

Proof-of-Concept of Magnetic Wheel-Based Magnetostrictive Energy Harvester

  • 신봉희 (인천대학교 컴퓨터공학부) ;
  • 박영우 (충남대학교 메카트로닉스공학과)
  • Shin, Bong-Hi (Department of Computer Science, Incheon National University) ;
  • Park, Young-Woo (Department of Mechatronics Engineering, Chungnam National University)
  • 투고 : 2014.11.10
  • 심사 : 2015.04.26
  • 발행 : 2015.05.01
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초록

This paper presents a proof-of-concept of a wheel-based magnetostrictive energy harvester (EH), which is a vibration-based EH. Coil-wound Galfenol cantilevers with two permanent magnets (PMs) act EH, while rotating wheels provide a forced vibration to EH. Four different cantilevers are designed and simulated for various end deflection. As expected from the simulation, the cantilever end deflection with triple cavity is the most. Three experiments are conducted to characterize the EH: the first with a magnetostrictive actuator, the second with a motor-driven wheel, and the third with the dummy weights. From the first experiment, the power reaches about 50 mV due to the relatively small displacement of the magnetostrictive actuator. From the second experiment, the power reaches about 120 mW. The power from the Galfenol cantilever is estimated to be about 60% of the total power from the wheel-based magnetostrictive EH.

키워드

참고문헌

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피인용 문헌

  1. Numerical Analysis of Deformation Mode of Flexible Plate-Type Piezoelectric Module for Evaluating Characteristics of Electrical-Energy Generation vol.32, pp.8, 2015, https://doi.org/10.7736/KSPE.2015.32.8.735
  2. Design and experimental verification of flexible plate-type piezoelectric vibrator for energy harvesting system vol.3, pp.3, 2016, https://doi.org/10.1007/s40684-016-0033-3