Internal resonance with commensurability induced by an auxiliary oscillator for broadband energy harvesting
By Liuyang Xiong, Lihua Tang, Brian R. Mace. 2016
136 citations recorded by the source corpus.
An internal resonance based broadband vibration energy harvester is proposed by introducing an auxiliary oscillator to the main nonlinear harvesting oscillator. Compared to conventional nonlinear energy harvesters, the natural frequencies of this two-degree-of-freedom nonlinear system can be easily adjusted to be commensurable which will result in more resonant peaks and better wideband performance. Experimental measurements and equivalent circuit simulations demonstrate that this design outperforms its linear counterpart. In addition to the open-circuit voltage, the optimal resistance to obtain the maximum power is determined. Nearly 130% increase in the bandwidth is achieved compared to the linear counterpart at an excitation level of 2 m/s2. The findings provide insight for the design of a broadband energy harvester when there is nonlinearity and internal resonance.
Subfields: Electrical and Electronic Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/c71a11643db6ffb9ca1b3cefa0c589581e5777a4
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In Electrical and Electronic Engineering
In Mechanical Engineering
Citations in the corpus
- A Hybrid Nonlinear Vibration Energy Harvester (2017, background): “[35] introduced an auxiliary oscillator that produces internal resonance with the main cantilever.”