A nonlinear energy harvester coupled to a smooth and discontinuous oscillator (SD oscillator) is proposed in this paper. This SD oscillator exhibits nonlinear dynamic performance by a pair of inclined linear elastic springs. The effects of its parameters on nonlinear response are investigated under harmonic external base excitation. Vibrational power flow behavior of this nonlinear energy harvesting system is investigated to evaluate the performance of energy harvesting efficiency, by applying both analytical approximations and numerical integrations. Comparing with corresponding linear oscillator system, the results demonstrated guaranteed benefits in terms of broadband vibration energy harvesting efficiency under harmonic external excitation situation.
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The Twenty-fifth International Ocean and Polar Engineering Conference
June 21–26, 2015
Kona, Hawaii, USA
ISBN:
978-1-880653-89-0
Power Flow Analysis and Dynamic Performance of a Nonlinear Vibration Energy Harvesting System Coupled to a SD Oscillator
Yeping Xiong
Yeping Xiong
University of Southampton
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Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, Kona, Hawaii, USA, June 2015.
Paper Number:
ISOPE-I-15-650
Published:
June 21 2015
Citation
Li, Yuan, and Yeping Xiong. "Power Flow Analysis and Dynamic Performance of a Nonlinear Vibration Energy Harvesting System Coupled to a SD Oscillator." Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, Kona, Hawaii, USA, June 2015.
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