Flexural waves transmitted by rectangular piezoceramic transducers

Veidt, Martin, Liu, Tierang and Kitipornchai, Sritawat (2001) Flexural waves transmitted by rectangular piezoceramic transducers. Smart Materials & Structures, 10 4: 681-688. doi:10.1088/0964-1726/10/4/311


Author Veidt, Martin
Liu, Tierang
Kitipornchai, Sritawat
Title Flexural waves transmitted by rectangular piezoceramic transducers
Journal name Smart Materials & Structures   Check publisher's open access policy
ISSN 0964-1726
1361-665X
Publication date 2001-08
Sub-type Article (original research)
DOI 10.1088/0964-1726/10/4/311
Volume 10
Issue 4
Start page 681
End page 688
Total pages 8
Editor R. O. Claus
Place of publication UK
Publisher IOP Publishing Ltd
Collection year 2001
Language eng
Subject C1
290501 Mechanical Engineering
671401 Scientific instrumentation
Abstract Rectangular piezoceramic transducers are widely used in ultrasonic evaluation and health monitoring techniques and structural vibration control applications. In this paper the flexural waves excited by rectangular transducers adhesively attached to isotropic plates are investigated. In view of the difficulties in developing accurate analytical models describing the transfer characteristics of the transducer due to the complex electromechanical transduction processes and transducer-structure interactions involved, a combined theoretical-experimental approach is developed. A multiple integral transform method is used to describe the propagation behaviour of the waves in the plates, while a heterodyne Doppler laser vibrometer is employed as a non-contact receiver device. This combined theoretical-experimental approach enables the efficient characterization of the electromechanical transfer properties of the piezoelectric transducer which is essential for the development of optimized non-destructive evaluation systems. The results show that the assumption of a uniform contact pressure distribution between the transducer and the plate can accurately predict the frequency spectrum and time domain response signals of the propagating waves along the main axes of the rectangular transmitter element.
Keyword Instruments & Instrumentation
Materials Science, Multidisciplinary
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Tue, 14 Aug 2007, 15:24:03 EST