Design and analysis of three-stator type piezoelectric driven multi-degree-of-freedom motor

被引：0

作者：

Li Z. ^{[1
]}

Wang Z. ^{[1
]}

Xue Z.-T. ^{[1
]}

Guo P. ^{[1
]}

Zhao L. ^{[1
]}

Wang Q.-J. ^{[2
]}

机构：

[1] College of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang

[2] National Engineering Laboratory of Energy-saving Motor & Control Technique, Anhui University, Hefei

来源：

Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2020年 / 24卷 / 11期

关键词：

Friction model; Modal analysis; Motion trajectory; Multi-degree-of-freedom; Output characteristic; Piezoelectric;

D O I：

10.15938/j.emc.2020.11.016

中图分类号：

学科分类号：

摘要：

A three-stator piezoelectric-driven multi-degree-of-freedom motor is proposed. The basic composition and the principle were introduced in detail. By using the finite element software of multi-physical field coupling, the three-dimensional electromechanical coupling simulation model was established. Firstly, the modal analysis of stator and rotor was simulated and analyzed in free statue, and the structure parameters highly correlated with modal analysis were optimized using parametric analysis method. Secondly, the transient analysis was carried out to determine the dynamic response of zero load with time variation. The influence of different tilt positions of stators on the motor trajectory was analyzed, which provided reference for the design of the rotor and verified the feasibility and rationality of the multi-degree-of-freedom operation of the motor. The friction contact model between stator and rotor was established, and the driving principle of the motor was analyzed. In the end, the optimized motor prototype was fabricated and the mechanical output characteristic of the motor was tested. The experimental results show that the output rotational speeds of X-axis, Y-axis and Z-axis under different excitation frequencies reach 29 r/min, 17 r/min, and 16 r/min when the frequency was matched. © 2020, Harbin University of Science and Technology Publication. All right reserved.

引用

页码：135 / 147

页数：12

共 26 条

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