The Analysis of Piezoelectric Tube Stack for Radial Vibration Frequency

摘要

According to equivalent circuit principle, piezoelectric tube stack equivalent circuit is derived by the admittance of single piezoelectric thin tube, and the resonance frequency of piezoelectric tube stack for radial vibration is also calculated. The relationship between resonance frequency of radial vibration mode and average radius, thickness and height are obtained from analytical calculation. Analytical calculation and experiment results are compared, and they match well with each other.