Eight parametric resonances in a multi-frequency wideband MEMS piezoelectric vibration energy harvester
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University of Cambridge; University of ChesterPublication Date
2016-01-24
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This paper presents a multi-order parametric resonant MEMS piezoelectric disk membrane, for the purpose of broadening the operational frequency bandwidth of a vibration energy harvester by employing the nonlinearity-induced bandwidth broadening associated with this phenomenon as well as the multi-frequency response associated with the higher orders. The fundamental mode -3dB bandwidth at 2.0 g recorded 55 Hz, while the first parametric resonant peak exhibited 365 Hz and the -3dB of the first 8 orders accumulated to 604 Hz. The membrane parametric resonator also experimentally demonstrated over 3-folds improvement in power density compared to a conventional direct resonator (cantilever), when subjected to band-limited white noise.Citation
Jia, Y., Du, S., & Seshia, A. A. (2016, 24-28 Jan. 2016). Eight parametric resonances in a multi-frequency wideband MEMS piezoelectric vibration energy harvester. 2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS 2016)Publisher
IEEEType
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9781509006090ae974a485f413a2113503eed53cd6c53
10.1109/MEMSYS.2016.7421863
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