期刊
APPLIED PHYSICS LETTERS
卷 107, 期 21, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4936607
关键词
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资金
- NSF [CMMI-1130724]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1130724] Funding Source: National Science Foundation
This letter reports a piezoelectric cantilever-pendulum design for multi-directional energy harvesting. A pendulum is attached to the tip of a piezoelectric cantilever-type energy harvester. This design aims at taking advantage of the nonlinear coupling between the pendulum motion in 3-dimensional space and the beam bending vibration at resonances. Experimental studies indicate that, under properly chosen parameters, 1: 2 internal resonance can be induced, which enables the multi-directional energy harvesting with a single cantilever. The advantages of the design with respect to traditional piezoelectric cantilever are examined. (C) 2015 AIP Publishing LLC.
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