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Title: A compact 2 degree-of-freedom energy harvester with cut-out cantilever beam
Authors: Wu, Hao
Tang, Lihua
Yang, Yaowen
Soh, Chee Kiong
Issue Date: 2012
Source: Wu, H., Tang, L., Yang, Y., & Soh, C. K. (2012). A Compact 2 Degree-of-Freedom Energy Harvester with Cut-Out Cantilever Beam. Japanese Journal of Applied Physics, 51.
Series/Report no.: Japanese journal of applied physics
Abstract: In this work, a novel 2 degree-of-freedom (DOF) vibration energy harvester is proposed. The harvester comprises one main cantilever beam and one secondary cantilever beam cut out within the main beam. By varying the proof masses, the first two resonances can be tuned close to each other, while maintaining significant magnitudes, thus providing a useful wide bandwidth for energy harvesting. Unlike previous 2-DOF harvesters, the proposed harvester is compact and utilizes the beam more efficiently by generating energy from both the main and secondary cantilevers. Therefore, the proposed harvester is more adaptive and functional in practical random or frequency-variant vibrational circumstances.
ISSN: 0021-4922
DOI: 10.1143/JJAP.51.040211
Rights: © 2012 The Japan Society of Applied Physics.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles

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