Open AccessDesign and Experimental Characterization of a Vibration Energy Harvesting Device for Rotational Systems
Author(s) -
Lutao Yan,
Jingfeng Hou,
Zhipeng Yang,
Xiangcheng Chu
Publication year - 2013
Publication title -
advances in mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.318
H-Index - 40
eISSN - 1687-8140
pISSN - 1687-8132
DOI - 10.1155/2013/263614
Subject(s) - vibration , slip ring , energy harvesting , cantilever , power (physics) , excitation , acoustics , magnet , rotation around a fixed axis , natural frequency , rotational speed , voltage , rotational energy , mechanical energy , maximum power transfer theorem , energy (signal processing) , control theory (sociology) , physics , electrical engineering , engineering , computer science , classical mechanics , brush , control (management) , quantum mechanics , artificial intelligence , aerospace engineering
This paper presents a new vibration based electromagnetic power generator to transfer energy from stationary to rotating equipment, which can be a new attempt to substitute slip ring in rotational systems. The natural frequencies and modes are simulated in order to have a maximum and steady power output from the device. Parameters such as piezoelectric disk location and relative motion direction of the magnet are theoretically and experimentally analyzed. The results show that the position that is close to the fixed end of the cantilever and the relative motion along the long side gives higher power output. Moreover, the capability of the energy harvester to extract power from lower energy environment is experimentally validated. The voltage and power output are measured at different excitation frequencies
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