Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/46605
標題: Piezoelectric energy harvesting from flow-induced vibration
作者: Wang, D.A.
王東安
Ko, H.H.
關鍵字: power generator
eel
期刊/報告no:: Journal of Micromechanics and Microengineering, Volume 20, Issue 2.
摘要: A new piezoelectric energy harvester for harnessing energy from flow-induced vibration is developed. It converts flow energy into electrical energy by piezoelectric conversion with oscillation of a piezoelectric film. A finite element model is developed in order to estimate the generated voltage of the piezoelectric laminate subjected to a distributed load. Prototypes of the energy harvester are fabricated and tested. Experimental results show that an open circuit output voltage of 2.2 V(pp) and an instantaneous output power of 0.2 mu W are generated when the excitation pressure oscillates with an amplitude of 1.196 kPa and a frequency of about 26 Hz. The solution of the generated voltage based on the finite element model agrees well with the experiments. Based on the finite element model, the effects of the piezoelectric film dimensions, the fluid pressure applied to the harvester and types of piezoelectric layer on the output voltage of the harvester can be investigated.
URI: http://hdl.handle.net/11455/46605
ISSN: 0960-1317
文章連結: http://dx.doi.org/10.1088/0960-1317/20/2/025019
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