Equivalent Circuit of a Stacked Piezoelectric Cymbal Vibrator

Autor: Zhaohan Gong, Yajun Zheng, Shuhan Yao, Xinhu Liu, Ningdong Hu, Hongping Hu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Micromachines, Vol 15, Iss 10, p 1205 (2024)
Druh dokumentu: article
ISSN: 2072-666X
DOI: 10.3390/mi15101205
Popis: In order to provide a convenient and fast calculation method, the equivalent circuit of a novel stacked piezoelectric cymbal vibrator is studied. The equivalent circuit model of the piezoelectric stack is derived by combining the equivalent circuit models of the thin piezoelectric disk and electrode. The equivalent circuit of the cymbal structure is then derived. The equivalent circuit model of the stacked piezoelectric cymbal vibrator is further proposed. The output axial displacements and output forces of the cymbal vibrator under different excitation voltages are investigated using the equivalent circuit model. The effectiveness of the equivalent circuit has been verified by comparing it with the finite element method. Furthermore, the equivalent circuit method has a much faster calculation speed than the finite element method.
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