Abstract
In order to study the performance of double-feet piezoelectric linear motor, the dynamic model of the stator system was established, and the prototype of double-feet piezoelectric linear motor was made. Firstly, the stator structure of double-feet piezoelectric linear motor, the two-degree-of-freedom transverse vibration system of the stator system and the experimental device of the motor velocity test were established respectively. Secondly, based on the orthogonal experiment, the speed and performance of double-feet piezoelectric linear motor were analysed with range and variance. The research result shows that the amplitude displacement of the piezoelectric motor-driven foot is about 61μm. The performance of the piezoelectric linear motor can meet the driving requirement of the motor’s mover. The orthogonal experimental analysis shows that both the voltage and frequency of double-feet piezoelectric linear motor have an effect on the velocity, and the frequency has a more significant effect on the motor velocity. It is verified that the piezoelectric motor has the characteristics of large drive displacement, fast reaction rate and stable operation.
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