Investigations of a nonlinear energy harvester with a bistable potential well

By Brian P. Mann, Benjamin A. M. Owens. 2010

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M-shaped asymmetric nonlinear oscillator for broadband vibration energy harvesting: Harmonic balance analysis and experimental validation (2014, methodology): “A bistable electromagnetic energy harvester was theoretically and experimentally explored by Mann and Owens [43].”
Non-linear piezoelectric vibration energy harvesting from a vertical cantilever beam with tip mass (2012, background): “The key aspect of the non-linear harvesters is the use of a double potential well function, so that the device will have two equilibrium positions (Cottone et al., 2009; Ferrari et al., 2010; Mann and Owens, 2010; Quinn et al., 2011; Ramlan et al., 2010).”
An application of stochastic resonance for energy harvesting in a bistable vibrating system (2014, background): “Both theoretical and experimental results showed that the potential well escape phenomenon can be used to broaden the frequency response and enhance the efficiency of an energy harvester [37–39], and so stochastic resonance clearly offers an appropriate enhancement for vibrational energy harvesting.”
A Hybrid Nonlinear Vibration Energy Harvester (2017, background): “Such systems use two magnets (one stationary and one moving) for piezoelectric energy harvesters [9, 10, 11] to create a double-well potential function.”