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A miniature disk-pivot piezoelectric motor with double rotors using a vibration mode B11 of one nodal circle and one nodal diameter was designed and fabricated. A disk-pivot structure is used to simulate the wobble vibration and an embedded metal cylinder is used to amplify the displacement to obtain a higher rotation velocity. The structure of the stator is analyzed by using Finite Element Method...
The transverse vibration of piezoceramic rectangular thin plates is investigated theoretically and experimentally using the Ritz's method incorporated with the defined equivalent constants. The equivalent constants are derived by comparing the characteristic equations of transverse resonant frequencies between isotropic and piezoceramic disks. By replacing the Poisson's ratio and flexural rigidity...
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