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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Mechanikos inžinerija / Mechanical Engineering (T009);Fizika / Physics (N002)
Author(s): Vasiljev, Piotr;Mažeika, Dalius;Borodinas, Sergejus;Yang, Ying;Wang, Yin
Title: Development of a new ultrasonic actuator based on Langevin bending transducer
Is part of: Archive of applied mechanics. New York : Springer, Special edition (2014)
Extent: p. [1-9]
Date: 2014
Keywords: Piezoelectric actuator;Langevin transducer;Bending vibrations
Abstract: A new ultrasonic actuator based on a bending-type Langevin piezoelectric transducer has been developed. An actuator consists of a half-wavelength Langevin transducer and an aluminum plate that is mounted in the middle of the transducer. The driving tip is located at the bottom of the aluminum plate. Piezoceramic rings with opposite polarity within each half of the ring are divided into two groups. Two harmonic signals with shifted phases by π/2 are used to excite the first bending mode of the Langevin transducer and aluminum plate. Elliptical trajectory of the contact point motion is obtained by combining these two bending modes. Numerical modelling was carried out to analyze harmonic response of the actuator and to investigate the trajectories of the contact point motion. Optimization of the aluminum plate design was performed to maximize the parameters of elliptical motion of the driving tip. A prototype actuator was fabricated, and output characteristics were measured. The results of numerical and experimental study are discussed
Affiliation(s): Vilniaus Gedimino technikos universitetas
Vytauto Didžiojo universitetas
Švietimo akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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