A finite-element modelling approach into the influence of mechanical matching and damping in 1-3 piezocomposites

Anthony Gachagan; JT Bennett; Gordon Hayward

doi:10.1109/ULTSYM.1994.401705

A finite-element modelling approach into the influence of mechanical matching and damping in 1-3 piezocomposites

Anthony Gachagan, JT Bennett, Gordon Hayward

Electronic And Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

9 Citations (Scopus)

Abstract

This paper presents an investigation into the performance of 1-3 piezocomposite transducers in both air and water media. The modelling strategy involves finite element analysis to predict piezocomposite behaviour when a matching layer or backing block is introduced and the results compared to those obtained using a constrained-dimensional linear systems model. The finite element model is also utilised to interpret various resonances present in the matched or damped piezocomposite and to determine their influence on the overall transducer performance. Interesting results are demonstrated by using a backing block and a strongly-coupled lateral mode close to the fundamental thickness resonance to increase the bandwidth of a piezocomposite reception device, while maintaining reasonable sensitivity

Original language	English
Title of host publication	1994 IEEE Ultrasonics Symposium, 1994. Proceedings
Publisher	IEEE
Pages	995-998
Number of pages	4
ISBN (Print)	0780320123
DOIs	https://doi.org/10.1109/ULTSYM.1994.401705
Publication status	Published - 1994
Event	1994 IEEE Ultrasonics Symposium - Sendai, Japan Duration: 31 Oct 1994 → …

Conference

Conference	1994 IEEE Ultrasonics Symposium
Country/Territory	Japan
City	Sendai
Period	31/10/94 → …

Keywords

underwater acoustic transducers
finite element methods
piezoelectric transducers
finite-element modelling
mechanical matching
underwater sound
composite material

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10.1109/ULTSYM.1994.401705

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title = "A finite-element modelling approach into the influence of mechanical matching and damping in 1-3 piezocomposites",

abstract = "This paper presents an investigation into the performance of 1-3 piezocomposite transducers in both air and water media. The modelling strategy involves finite element analysis to predict piezocomposite behaviour when a matching layer or backing block is introduced and the results compared to those obtained using a constrained-dimensional linear systems model. The finite element model is also utilised to interpret various resonances present in the matched or damped piezocomposite and to determine their influence on the overall transducer performance. Interesting results are demonstrated by using a backing block and a strongly-coupled lateral mode close to the fundamental thickness resonance to increase the bandwidth of a piezocomposite reception device, while maintaining reasonable sensitivity",

keywords = "underwater acoustic transducers, finite element methods, piezoelectric transducers, finite-element modelling, mechanical matching, underwater sound, composite material",

author = "Anthony Gachagan and JT Bennett and Gordon Hayward",

year = "1994",

doi = "10.1109/ULTSYM.1994.401705",

language = "English",

isbn = "0780320123",

pages = "995--998",

booktitle = "1994 IEEE Ultrasonics Symposium, 1994. Proceedings",

publisher = "IEEE",

note = "1994 IEEE Ultrasonics Symposium ; Conference date: 31-10-1994",

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TY - GEN

T1 - A finite-element modelling approach into the influence of mechanical matching and damping in 1-3 piezocomposites

AU - Gachagan, Anthony

AU - Bennett, JT

AU - Hayward, Gordon

PY - 1994

Y1 - 1994

N2 - This paper presents an investigation into the performance of 1-3 piezocomposite transducers in both air and water media. The modelling strategy involves finite element analysis to predict piezocomposite behaviour when a matching layer or backing block is introduced and the results compared to those obtained using a constrained-dimensional linear systems model. The finite element model is also utilised to interpret various resonances present in the matched or damped piezocomposite and to determine their influence on the overall transducer performance. Interesting results are demonstrated by using a backing block and a strongly-coupled lateral mode close to the fundamental thickness resonance to increase the bandwidth of a piezocomposite reception device, while maintaining reasonable sensitivity

AB - This paper presents an investigation into the performance of 1-3 piezocomposite transducers in both air and water media. The modelling strategy involves finite element analysis to predict piezocomposite behaviour when a matching layer or backing block is introduced and the results compared to those obtained using a constrained-dimensional linear systems model. The finite element model is also utilised to interpret various resonances present in the matched or damped piezocomposite and to determine their influence on the overall transducer performance. Interesting results are demonstrated by using a backing block and a strongly-coupled lateral mode close to the fundamental thickness resonance to increase the bandwidth of a piezocomposite reception device, while maintaining reasonable sensitivity

KW - underwater acoustic transducers

KW - finite element methods

KW - piezoelectric transducers

KW - finite-element modelling

KW - mechanical matching

KW - underwater sound

KW - composite material

U2 - 10.1109/ULTSYM.1994.401705

DO - 10.1109/ULTSYM.1994.401705

M3 - Conference contribution book

SN - 0780320123

SP - 995

EP - 998

BT - 1994 IEEE Ultrasonics Symposium, 1994. Proceedings

PB - IEEE

T2 - 1994 IEEE Ultrasonics Symposium

Y2 - 31 October 1994

ER -

A finite-element modelling approach into the influence of mechanical matching and damping in 1-3 piezocomposites

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