期刊
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
卷 58, 期 3, 页码 3901-3908出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIA.2022.3160144
关键词
Springs; Finite element analysis; Piezoelectric materials; Vibrations; Stress; Resonant frequency; Micromechanical devices; COMSOL; energy harvester; finite element method (FEM); flared-U shaped; microelectromechanical system (MEMS); piezoelectric; lead zirconate titanate (PZT); resonant frequency
This study aims to achieve maximum electrical output by using a microelectromechanical system flared-U shaped spring based piezoelectric vibration energy harvester. The results show that the PZT-5H piezoelectric material performs better than other variations of PZT.
In this article, the presented work aims to scavenge maximum electrical outputs by using the novel microelectromechanical system flared-U shaped spring based piezoelectric vibration energy harvester (PVEH). The performance studies were carried out by employing four different variations of lead zirconate titanate (PZT) piezoelectric material namely PZT-4, PZT-5A, PZT-5H, and PZT-8 in the same size and shape of the proposed device. The maximum output powers employing PZT-4, PZT-5A, PZT-5H, and PZT-8 piezoelectric materials are 7.156 nW, 8.657 nW, 10.738 nW, 5.701 nW over 30 Hz, 28.4 Hz, 28.6 Hz, and 30.2 Hz, resonant frequency, respectively, at input acceleration of 0.07 g. From the finite element method simulator COMSOL Multiphysics 5.4 (licensed version) simulation-based outcomes, it is inferred that PZT-5H piezoelectric material performs better than other variations of PZT, such as PZT-4, PZT-5A, and PZT-8 piezoelectric materials.
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