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A broadband vibrational energy harvester

2012; American Institute of Physics; Volume: 100; Issue: 25 Linguagem: Inglês

10.1063/1.4729875

1520-8842

Louis Van Blarigan, Per Danzl, Jeff Moehlis,

Advanced Sensor and Energy Harvesting Materials

We propose a design for an energy harvester which has the potential to harvest vibrational energy over a broad range of ambient frequencies. The device uses two flexible ceramic piezoelectric elements arranged in a buckled configuration in the absence of vibrations. Experimental data show that this design allows enhanced harvesting of energy relative to a comparable cantilever design, both for periodic and stochastic vibrations. Moreover, the data suggest that this harvester has its peak energy generation when it responds with chaotic vibrations.