A 3D printed sandwich-type piezoelectric motor with a surface texture

Polymer-based piezoelectric motors have excellent properties, such as lightweight and corrosion resistance. In addition, 3D printing and customized additive manufacturing of polymers provide new opportunities for the development of piezoelectric motors with complex or special structures. In this pap...

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Bibliographic Details
Published in:Review of scientific instruments 2022-10, Vol.93 (10), p.105003-105003
Main Authors: Liu, Ruixuan, Li, Xiaoniu, Yu, De, Cao, Teng, Cao, Jia, Wang, Boquan, Wu, Dawei
Format: Article
Language:English
Subjects:
Coefficient of friction
Corrosion resistance
Dynamic characteristics
Mathematical models
Piezoelectric motors
Polymers
Scientific apparatus & instruments
Surface layers
Texture
Three dimensional printing
Viscoelasticity
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Summary:Polymer-based piezoelectric motors have excellent properties, such as lightweight and corrosion resistance. In addition, 3D printing and customized additive manufacturing of polymers provide new opportunities for the development of piezoelectric motors with complex or special structures. In this paper, a 3D printed polymer-based sandwich-type piezoelectric motor operating in a single longitudinal mode is developed. A vibration decomposition model of the motor and an analytical model considering polymer viscoelasticity are established to analyze the dynamic characteristics and to determine the geometric structure of the motor. To increase the coefficient of friction, a polymer surface texture is utilized on the contacts. The experimental results show that the friction coefficient of the contact tip with surface texture is about 0.16, which increased by 45.5% compared to a smooth surface. The resonance frequency is 28.648 kHz, and the maximum no-load speed under 300 Vp-p is 54 r/min. Our study shows the promise of polymer-based materials in the development of the piezoelectric motor.
ISSN:0034-6748
1089-7623
DOI:10.1063/5.0107009