Guided waves propagating in a bi-layer system consisting of a piezoelectric plate and a dielectric fluid layer

Chia Han Wu*, Che Hua Yang

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

8 Scopus citations

Abstract

This study employs a theoretical modeling and an experimental measurement for investigating the dispersion behavior of guided waves propagating in a bi-layer system consisting of a piezoelectric plate and a dielectric fluid layer. The theoretical model is based on a recursive asymptotic stiffness matrix method (RASM) with the fluid layer modeled as an equivalent elastic body. A laser ultrasound technique is used to measure the dispersion relations of the bi-layer system. Behaviors of mode couplings between guided modes propagating in the piezoelectric plate and those in fluid layer are characterized in the modeling and measurements. Dispersion behaviors of guided modes propagating in the bi-layer system are discussed for varying fluid thicknesses. For all of the investigated cases, the theoretical modeled dispersion spectra agree well with the measurements.

Original languageEnglish
Article number5995218
Pages (from-to)1612-1618
Number of pages7
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume58
Issue number8
DOIs
StatePublished - 08 2011
Externally publishedYes

Fingerprint

Dive into the research topics of 'Guided waves propagating in a bi-layer system consisting of a piezoelectric plate and a dielectric fluid layer'. Together they form a unique fingerprint.

Cite this