CUED Publications database

Eight parametric resonances in a multi-frequency wideband MEMS piezoelectric vibration energy harvester

Jia, Y and Du, S and Seshia, AA (2016) Eight parametric resonances in a multi-frequency wideband MEMS piezoelectric vibration energy harvester. In: UNSPECIFIED pp. 1244-1247..

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Abstract

© 2016 IEEE. 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.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div C > Applied Mechanics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:09
Last Modified: 07 Sep 2017 01:44
DOI: