Resonant tuning of Langevin transducers for ultrasonically assisted machining applications

Astashev, V.K., Pichugin, K.A., Li, X. , Meadows, A. and Babitsky, V.I. (2020) Resonant tuning of Langevin transducers for ultrasonically assisted machining applications. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, (doi: 10.1109/TUFFC.2020.2991836) (Early Online Publication)

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Abstract

This paper provides a fundamental study into the trade-offs between the location of piezoceramic elements, resonant frequency, and achievable ultrasonic vibration amplitude at the working end of the Bolted Langevin-style Transducers (BLT) for Ultrasonically Assisted Machining (UAM) applications. Analytical models and Finite Element (FE) models are established for theoretical study, which are then validated by experiments on four real electro-mechanical transducers. Results suggest that resonant frequency and oscillation amplitude of the BLTs depend essentially on the dimensions of the system and the location of piezoceramic elements. The highest resonant frequency and the maximal vibration are achieved when the piezoceramic elements are at the longitudinal displacement node, where the highest effective electro-mechanical coupling coefficient value is exhibited. However, the minimal resonant frequency and the lowest vibration, which is almost equal to zero, are observed when the piezoceramic elements are located at the displacement anti-node. In addition, the longitudinal displacement node locations are dependent on the resonant frequency of the devices rather than the locations of the piezoceramic elements.

Item Type:Articles
Additional Information:The work of the authors from the Institute of Machine Studies was supported by a grant from the Russian Science Foundation (project No 19-19-065).
Status:Early Online Publication
Refereed:Yes
Glasgow Author(s) Enlighten ID:Li, Dr Xuan
Authors: Astashev, V.K., Pichugin, K.A., Li, X., Meadows, A., and Babitsky, V.I.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Publisher:IEEE
ISSN:0885-3010
ISSN (Online):1525-8955
Published Online:06 May 2020
Copyright Holders:Copyright © 2020 IEEE
First Published:First published in IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 2020
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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