Enhanced vibration energy harvesting using nonlinear oscillations

Emily Engel; Jiaying Wei; Christopher L. Lee

doi:10.1117/12.2176840

18 May 2015 Enhanced vibration energy harvesting using nonlinear oscillations

Emily Engel, Jiaying Wei, Christopher L. Lee

Proceedings Volume 9493, Energy Harvesting and Storage: Materials, Devices, and Applications VI; 94930Q (2015) https://doi.org/10.1117/12.2176840
Event: SPIE Sensing Technology + Applications, 2015, Baltimore, MD, United States

Abstract

Results for the design and testing of an electromagnetic device that converts ambient mechanical vibration into electricity are presented. The design of the device is based on an L-shaped beam structure which is tuned so that the first two natural frequencies have a near two-to-one ratio which is referred to as an internal resonance or autoparametic condition. It is shown that in contrast to single degree-of-freedom, linear-dynamics-based vibration harvesters which convert energy in a very narrow frequency band the prototype can generate power over an extended frequency range when subject to harmonic, base displacement excitation.

Citation Download Citation

Emily Engel, Jiaying Wei, and Christopher L. Lee "Enhanced vibration energy harvesting using nonlinear oscillations", Proc. SPIE 9493, Energy Harvesting and Storage: Materials, Devices, and Applications VI, 94930Q (18 May 2015); https://doi.org/10.1117/12.2176840

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