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Micromachines
Special Issues
Advances in Ultrasonic Motors
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Advances in Ultrasonic Motors

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "E：Engineering and Technology".

Deadline for manuscript submissions: closed (1 April 2025) | Viewed by 1226

Special Issue Editors

Prof. Dr. Weishan Chen

E-Mail Website
Guest Editor
State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China
Interests: piezoelectric actuators; ultrasonic motors; ultrasonic transducers; micro-nano manipulators; soft robots; artificial muscles
Dr. Shuo Chen

E-Mail Website
Guest Editor
State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China
Interests: piezoelectric actuators; ultrasonic motors; piezoelectric fast steering mirrors; active vibration control
Dr. Kai Li

E-Mail Website
Guest Editor
State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China
Interests: piezoelectric actuators; ultrasonic motors; piezoelectric jetting; piezoelectric energy harvesters; underwater robots
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Ultrasonic motors, driven by the inverse piezoelectric effect, utilize piezoelectric materials to generate ultrasonic vibrations for motion. Compared to traditional electromagnetic motors, they offer notable advantages such as low speed but high-torque output, precise control, and a compact design. Since they do not rely on electromagnetic coils or moving currents, ultrasonic motors have excellent resistance to electromagnetic interference, making them ideal for environments with strict electromagnetic compatibility requirements. Additionally, they produce minimal heat during operation, enhancing system stability and enabling long-term use. Ultrasonic motors are widely applied in fields like precision control, micromachines, medical imaging, and aerospace. However, their drawbacks include wear of the piezoelectric materials and friction layers, limited lifespan, and relatively low efficiency. They also face challenges related to high production costs and complex driving circuits. Nonetheless, advancements in piezoelectric materials and control strategies continue to expand the potential of ultrasonic motors in high-precision, low-noise, and high-reliability applications. Accordingly, this Special Issue seeks to showcase research papers, short communications, and review articles that focus on (1) novel designs, fabrication, control, and modeling of ultrasonic motor based on all kinds of actuation mechanisms; and (2) new developments of applying ultrasonic motors of any kind in consumer electronics, optical communications, industry, medicine, space, or defense.

Prof. Dr. Weishan Chen
Dr. Shuo Chen
Dr. Kai Li
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2100 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • ultrasonic motor
  • design
  • material
  • working principles
  • vibration mode
  • elliptical trajectories
  • performance
  • test device
  • ultrasonic motor modeling
  • ultrasonic motor control
  • ultrasonic motor applications
  • precision control
  • micromachines
  • medical imaging equipment
  • aerospace

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Published Papers (1 paper)

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Research

25 pages, 9870 KiB  
Article
Development of Piezoelectric Inertial Rotary Motor for Free-Space Optical Communication Systems
by Laurynas Šišovas, Andrius Čeponis, Dalius Mažeika and Sergejus Borodinas
Micromachines 2024, 15(12), 1495; https://doi.org/10.3390/mi15121495 - 14 Dec 2024
Viewed by 897
Abstract
This paper presents the design, development, and investigation of a novel piezoelectric inertial motor whose target application is the low Earth orbit (LEO) temperature conditions. The motor utilizes the inertial stick–slip principle, driven by the first bending mode of three piezoelectric bimorph plates, [...] Read more.
This paper presents the design, development, and investigation of a novel piezoelectric inertial motor whose target application is the low Earth orbit (LEO) temperature conditions. The motor utilizes the inertial stick–slip principle, driven by the first bending mode of three piezoelectric bimorph plates, and is compact and lightweight, with a total volume of 443 cm3 and a mass of 28.14 g. Numerical simulations and experimental investigations were conducted to assess the mechanical and electromechanical performance of the motor in a temperature range from −20 °C to 40 °C. The results show that the motor’s resonant frequency decreases from 12,810 Hz at −20 °C to 12,640 Hz at 40 °C, with a total deviation of 170 Hz. The displacement amplitude increased from 12.61 μm to 13.31 μm across the same temperature range, indicating an improved mechanical response at higher temperatures. The motor achieved a maximum angular speed up to 1200 RPM and a stall torque of 13.1 N·mm at an excitation voltage amplitude of 180 Vp-p. The simple and scalable design, combined with its stability under varying temperature conditions, makes it well suited for small satellite applications, particularly in precision positioning tasks such as satellite orientation and free-space optical (FSO) communications. Full article
(This article belongs to the Special Issue Advances in Ultrasonic Motors)
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