A continuously variable beam expander driven by ultrasonic motors

Xu, Zhangfan; Pan, Song; Chen, Lei; Di, Sisi; Huang, Weiqing

doi:10.1063/1.5117189

Cited by 7 publications

(2 citation statements)

References 12 publications

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“…These results imply the suitability of torsional/flexural vibrations for piezoelectric motors. In further studies, we would like to, as mentioned above, increase the working frequency into the inaudible range by shortening the vibrator's length [34,35]. Additionally, we will model the T/F motor and conduct structural optimization in the future [34,36].…”

Section: Discussionmentioning

confidence: 99%

A Dumbbell Shaped Piezoelectric Motor Driven by the First-Order Torsional and the First-Order Flexural Vibrations

Niu

Liu

et al. 2020

Actuators

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A piezoelectric motor driven by the first-order torsional and first-order flexural (T/F) vibrations is designed, fabricated, and tested in this study. The actuating force is generated by the torsional vibration of the dumbbell-shaped vibrator, while the elliptical motion shape is adjusted with the flexural vibration. The rotor, pressed onto the vibrator’s lateral surface, is frictionally driven with the vibrator. Here, the torsional vibration, the shear modes of piezoelectric ceramics, and the driving method may contribute to high torque and high output power. To test the feasibility of our proposal, first, a prototype of the T/F vibrator is built and its vibration properties are explored. As predicted, the torsional and flexural vibrations are excited on the vibrator. Then, the load characteristics of the piezoelectric motor are investigated. The maximal torque, the no-load rotation speed, and maximal output power are 4.3 Nm, 125 r/min, and 16.9 W, respectively. The results imply that using the first-order torsional and the first-order flexural vibrations is a feasible method to achieve high torque and high output power of piezoelectric motors.

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Section: Discussionmentioning

confidence: 99%

A Dumbbell Shaped Piezoelectric Motor Driven by the First-Order Torsional and the First-Order Flexural Vibrations

Niu

Liu

et al. 2020

Actuators

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“…An automatic continuously variable beam expander with two hollow ultrasonic motors as its actuators was used to expand a laser beam by between threefold and fivefold, and nanoscale positioning and high-precision beam shaping was achieved [284].…”

Section: Continuously Variable Beam Expandermentioning

confidence: 99%

The Roles of Piezoelectric Ultrasonic Motors in Industry 4.0 Era: Opportunities and Challenges

Wankhede¹,

Xu²

2021

Piezoelectric Actuators - Principles, Design, Experiments and Applications

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Piezoelectric Ultrasonic motors (USM) are based on the principle of converse piezoelectric effect i.e., vibrations occur when an electrical field is applied to piezoelectric materials. USMs have been studied several decades for their advantages over traditional electromagnetic motors. Despite having many advantages, they have several challenges too. Recently many researchers have started focusing on Industry 4.0 or Fourth Industrial revolution phase of the industry which mostly emphasis on digitization & interconnection of the entities throughout the life cycle of the product in an industrial network to get the best possible output. Industry 4.0 utilizes various advanced tools for carrying out the nexus between the entities & bringing up them on digital platform. The studies of the role of USMs in Industry 4.0 scenario has never been done till now & this article fills that gap by analyzing the piezoelectric ultrasonic motors in depth & breadth in the background of Industry 4.0. This article delivers the novel working principle, illustrates examples for effective utilization of USMs, so that it can buttress the growth of Industry 4.0 Era & on the other hand it also analyses the key Industry 4.0 enabling technologies to improve the performance of the USMs.

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A flexible shaft based travelling wave ultrasonic motor with high-precision positioning characteristics

Zhou¹,

Chen

et al. 2021

Precision Engineering

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A continuously variable beam expander driven by ultrasonic motors

Cited by 7 publications

References 12 publications

A Dumbbell Shaped Piezoelectric Motor Driven by the First-Order Torsional and the First-Order Flexural Vibrations

A Dumbbell Shaped Piezoelectric Motor Driven by the First-Order Torsional and the First-Order Flexural Vibrations

The Roles of Piezoelectric Ultrasonic Motors in Industry 4.0 Era: Opportunities and Challenges

A flexible shaft based travelling wave ultrasonic motor with high-precision positioning characteristics

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