Resonant-type inertia linear piezoelectric motor based on a synchronized switching stimulated by harmonic synthesized mechanical square wave

Liangguo He; Ziyang Cheng; Lei Xu; Xinyu Li; Xinfang Ge; Jian Chen; Jiang Han

doi:10.1063/5.0008580

Resonant-type inertia linear piezoelectric motor based on a synchronized switching stimulated by harmonic synthesized mechanical square wave

Rev Sci Instrum. 2020 Aug 1;91(8):085003. doi: 10.1063/5.0008580.

Authors

Liangguo He¹, Ziyang Cheng¹, Lei Xu¹, Xinyu Li¹, Xinfang Ge¹, Jian Chen¹, Jiang Han¹

Affiliation

¹ School of Mechanical Engineering, Hefei University of Technology, Hefei, Anhui 230009, China.

PMID: 32872959
DOI: 10.1063/5.0008580

Abstract

A novel resonant linear piezoelectric motor based on a synchronized switching stimulated by harmonic synthesized mechanical square wave was designed in this study. The driving mechanism of the motor was also investigated. The periodic square wave motions of the clutch and the vibrator were generated by composing two sinusoidal resonant bending vibrations with a frequency ratio of 1:3. The linear motion of the motor output shaft can be realized through the cooperation between the clutch and the vibrator. An experimental device was established to validate the working principle and evaluate the performance of the motor. The prototype motor reached the maximum no-load velocity of 16.35 mm/s with a clutch driving voltage of 200 V_p-p and a vibrator driving voltage of 240 V_p-p for a base frequency of 809 Hz. The maximum traction force of 5.64 N was obtained under the clutch driving voltage of 200 V_p-p and the vibrator driving voltage of 160 V_p-p for a base frequency of 809 Hz. The motor achieved a net efficiency of 21.43% with a load of 2.25 N.