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

Anthony Gachagan, JT Bennett, Gordon Hayward

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

7 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 languageEnglish
Title of host publication1994 IEEE Ultrasonics Symposium, 1994. Proceedings
PublisherIEEE
Pages995-998
Number of pages4
ISBN (Print)0780320123
DOIs
Publication statusPublished - 1994
Event1994 IEEE Ultrasonics Symposium - Sendai, Japan
Duration: 31 Oct 1994 → …

Conference

Conference1994 IEEE Ultrasonics Symposium
CountryJapan
CitySendai
Period31/10/94 → …

Keywords

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

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