CLC number: TM356
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2016-08-23
Cited: 1
Clicked: 4285
Chong Li, Cun-yue Lu, Yi-xin Ma, Shi-yang Li, Wei-qing Huang. Design of an ultrasonic motor with multi-vibrators[J]. Journal of Zhejiang University Science A, 2016, 17(9): 724-732.
@article{title="Design of an ultrasonic motor with multi-vibrators",
author="Chong Li, Cun-yue Lu, Yi-xin Ma, Shi-yang Li, Wei-qing Huang",
journal="Journal of Zhejiang University Science A",
volume="17",
number="9",
pages="724-732",
year="2016",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1500316"
}
%0 Journal Article
%T Design of an ultrasonic motor with multi-vibrators
%A Chong Li
%A Cun-yue Lu
%A Yi-xin Ma
%A Shi-yang Li
%A Wei-qing Huang
%J Journal of Zhejiang University SCIENCE A
%V 17
%N 9
%P 724-732
%@ 1673-565X
%D 2016
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1500316
TY - JOUR
T1 - Design of an ultrasonic motor with multi-vibrators
A1 - Chong Li
A1 - Cun-yue Lu
A1 - Yi-xin Ma
A1 - Shi-yang Li
A1 - Wei-qing Huang
J0 - Journal of Zhejiang University Science A
VL - 17
IS - 9
SP - 724
EP - 732
%@ 1673-565X
Y1 - 2016
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1500316
Abstract: This paper presents and verifies a new idea for constructing an ultrasonic motor (USM). The stator contains several vibrators fabricated by bonding piezoelectric ceramics (PZTs) to a metal base. When two alternating current (AC) voltages with a 90° phase difference are applied to the PZTs, longitudinal and bending modes are excited in the vibrator. The bending vibrations of the vibrators are stacked to form the torsional vibration of the stator, ultimately generating longitudinal-torsional composite vibration. Both vibrators and the stator are excited to the resonance state. A standing wave is formed by superposition of longitudinal and torsional modes. The proposed motor is an in-plane vibration motor because the vibrations of the stator are in the circumferential plane. The finite element method (FEM) is used to validate the feasibility of the proposed motor. The fabricated stator contains five vibrators. The tested resonance frequencies of longitudinal and torsional modes are 44.42 kHz and 43.83 kHz, respectively. The stall torque is 0.3 N·m and no-load speed is 45 r/min. The highest efficiency is 30%. The applied driving voltage is 100 Vo-p (peak voltage) at 43.9 kHz. The designed motor is a parallel-actuated integral motor. It allows the vibrators to operate synchronously, and overcomes asynchronous issues that occur in traditional multi-vibrator motors.
In this manuscript, a rotary ultrasonic motor using multi-vibrators was proposed, designed and tested. The idea for the exciting of the longitudinal-torsion hybrid vibrations is new. The FEM simulation results and the experimental results verify the feasibility of the proposed design. The proposed ultrasonic motor is suitable for miniaturizing design. It achieved higher efficiency than a previous work. This paper contains new idea, detail theoretical calculation and experiments.
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