Next Article in Journal
Hydrogen Sensing Performance of ZnO Schottky Diodes in Humid Ambient Conditions with PMMA Membrane Layer
Next Article in Special Issue
Advances in Sonothrombolysis Techniques Using Piezoelectric Transducers
Previous Article in Journal
DYSKIMOT: An Ultra-Low-Cost Inertial Sensor to Assess Head’s Rotational Kinematics in Adults during the Didren-Laser Test
Previous Article in Special Issue
Integrated Piezoelectric AlN Thin Film with SU-8/PDMS Supporting Layer for Flexible Sensor Array
Open AccessArticle

3DOF Ultrasonic Motor with Two Piezoelectric Rings

1
Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentų str. 56, 51424 Kaunas, Lithuania
2
Faculty of Fundamental Sciences, Vilnius Gediminas Technical University, Saulėtekio av. 11, 10221 Vilnius, Lithuania
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(3), 834; https://doi.org/10.3390/s20030834
Received: 14 January 2020 / Revised: 1 February 2020 / Accepted: 3 February 2020 / Published: 4 February 2020
(This article belongs to the Special Issue Development of Piezoelectric Sensors and Actuators)
A novel design of a multiple degrees of freedom (multi-DOF) piezoelectric ultrasonic motor (USM) is presented in the paper. The main idea of the motor design is to combine the magnetic sphere type rotor and two oppositely placed ring-shaped piezoelectric actuators into one mechanism. Such a structure increases impact force and allows rotation of the sphere with higher torque. The main purpose of USM development was to design a motor for attitude control systems used in small satellites. A permanent magnetic sphere with a magnetic dipole is used for orientation and positioning when the sphere is rotated to the desired position and the magnetic field synchronizes with the Earth’s magnetic dipole. Also, the proposed motor can be installed and used for robotic systems, laser beam manipulation, etc. The system has a minimal number of components, small weight, and high reliability. Numerical simulation and experimental studies were used to verify the operating principles of the USM. Numerical simulation of a piezoelectric actuator was used to perform modal frequency and harmonic response analysis. Experimental studies were performed to measure both mechanical and electrical characteristics of the piezoelectric motor. View Full-Text
Keywords: piezoelectric multi-DOF actuator; ultrasonic motor; spherical rotor; electrode segmentation; finite element analysis; ring-shaped piezoelectric transducer piezoelectric multi-DOF actuator; ultrasonic motor; spherical rotor; electrode segmentation; finite element analysis; ring-shaped piezoelectric transducer
Show Figures

Figure 1

MDPI and ACS Style

Jūrėnas, V.; Kazokaitis, G.; Mažeika, D. 3DOF Ultrasonic Motor with Two Piezoelectric Rings. Sensors 2020, 20, 834.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop