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Analysis of Radial Thickness Vibration Modes of Piezoelectric Ceramic Ring Based on ANSYS

According to the simulation by Finite Element Analysis (FEA) for rings with different sizes, how thickness vibration resonance frequency varying as piezoelectric ring structure changing is studied. The relation between thickness vibration mode and height, thickness and radius is obtained. The bandwidth of single circle being narrow has been obtained at the same time, so the method that two high frequency piezoelectric ring oscillators are stacked in axis direction and their structure are optimized to get two times as much as the monocyclic bandwidth is researched, according to the trend of single ring.