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Shock and Vibration - Volume 2016 2016, Article ID 4101062, 9 pages -

Research Article

Kaunas University of Technology, Studentų g. 56, LT-51424 Kaunas, Lithuania

Vilnius Gediminas Technical University, Saulėtekio al. 11, Vilnius LT-10223 Vilnius, Lithuania

Received 15 September 2015; Revised 17 December 2015; Accepted 20 December 2015

Academic Editor: Mickaël Lallart

Copyright © 2016 Ramutis Bansevicius et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The paper covers the research and development of piezoelectric traveling wave actuators using different types of the waveguides. The introduced piezoelectric actuators can be characterized by specific areas of application, different resolution, and torque. All presented actuators are ultrasonic resonant devices and they were developed to increase amplitudes of the traveling wave oscillations of the contact surface. Three different waveguides are introduced, that is, symmetrical, asymmetrical, and cone type waveguide. A piezoelectric ring with the sectioned electrodes is used to excite traveling wave oscillations for all actuators. Operating principle, electrode pattern, and excitation regimes of piezoelectric actuators are described. A numerical modelling of the actuators was performed to validate the operating principle and to calculate trajectories of the contact points motion. Prototype actuators were made and experimental study was performed. The results of numerical and experimental analysis are discussed.





Autor: Ramutis Bansevicius, Dalius Mazeika, Vytautas Jurenas, Genadijus Kulvietis, and Vytautas Bakanauskas

Fuente: https://www.hindawi.com/



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