Abstract
A deep-sea resonant sandwich linear ultrasonic motor is proposed and designed. We determine the parameter of its structure by finite-element analysis. The piezoelectric actuator adopts compound vibration mode of fifth order bending vibration and second order longitudinal. The mode degeneracy of that is completed. We manufacture the prototype to measure the performance of it. We measure its vibration mode and resonant frequency. The velocity of prototype can reach 264.5 mm/s while the water pressure is 8 MPa and the voltage signal with frequency of 30.30 kHz and voltage amplitude of 150 V.
Highlights
Piezoelectric actuator is a kind of new motor which using inverse piezoelectric effect of piezoelectric ceramics [1] [2] [3]
We determine the parameter of its structure by finite-element analysis
Piezoelectric actuators are classified into two types: single vibration mode and compound vibration mode [3] [4] [5]
Summary
Piezoelectric actuator is a kind of new motor which using inverse piezoelectric effect of piezoelectric ceramics [1] [2] [3]. Piezoelectric actuators are classified into two types: single vibration mode and compound vibration mode [3] [4] [5]. Piezoelectric actuators of compound vibration mode have higher performance than single vibration mode. We study the compound vibration mode piezoelectric motor working in deep-sea environment. We design a deep-sea resonant sandwich linear ultrasonic motor and manufacture the prototype to measure its performance. The velocity of prototype can reach 264.5 mm/s while the water pressure is 8 MPa and the voltage signal with frequency of 30.30 kHz and voltage amplitude of 150 V. It verifies the simulation result and reaches the experiment objective
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