Semi-analytical modelling of piezoelectric excitation of guided waves
Semi-analytical modelling of piezoelectric excitation of guided waves
Piezoelectric elements are a key component of modern non-destructive testing (NDT) and structural health monitoring (SHM) systems and play a significant role in many other areas involving dynamic interaction with the structure such as energy harvesting, active control, power ultrasonics or removal of surface accretions using structural waves. In this paper we present a wave-based technique for modelling waveguides equipped with piezoelectric actuators in which there is no need for common simplifications regarding their dynamic behaviour or mutual interaction with the structure. The proposed approach is based on the semi-analytical finite element (SAFE) method. We developed a new piezoelectric semi-analytical element and employed the analytical wave approach to model the distributed electric excitation and scattering of the waves at discontinuities. The model is successfully validated against an experiment on a beam-like waveguide with emulated anechoic terminations
Kalkowski, Michal
6f0d01ef-7f44-459c-82a2-03f9e1275eda
Rustighi, Emiliano
9544ced4-5057-4491-a45c-643873dfed96
Waters, Timothy
348d22f5-dba1-4384-87ac-04fe5d603c2f
23 March 2015
Kalkowski, Michal
6f0d01ef-7f44-459c-82a2-03f9e1275eda
Rustighi, Emiliano
9544ced4-5057-4491-a45c-643873dfed96
Waters, Timothy
348d22f5-dba1-4384-87ac-04fe5d603c2f
Kalkowski, Michal, Rustighi, Emiliano and Waters, Timothy
(2015)
Semi-analytical modelling of piezoelectric excitation of guided waves.
SPIE Smart Structures & NDE 2015, San Diego, United States.
08 - 12 Mar 2015.
(doi:10.1117/12.2087018).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Piezoelectric elements are a key component of modern non-destructive testing (NDT) and structural health monitoring (SHM) systems and play a significant role in many other areas involving dynamic interaction with the structure such as energy harvesting, active control, power ultrasonics or removal of surface accretions using structural waves. In this paper we present a wave-based technique for modelling waveguides equipped with piezoelectric actuators in which there is no need for common simplifications regarding their dynamic behaviour or mutual interaction with the structure. The proposed approach is based on the semi-analytical finite element (SAFE) method. We developed a new piezoelectric semi-analytical element and employed the analytical wave approach to model the distributed electric excitation and scattering of the waves at discontinuities. The model is successfully validated against an experiment on a beam-like waveguide with emulated anechoic terminations
Text
MKK - Semi-analytical modelling of piezoelectric excitation of guided waves .pdf
- Accepted Manuscript
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Published date: 23 March 2015
Venue - Dates:
SPIE Smart Structures & NDE 2015, San Diego, United States, 2015-03-08 - 2015-03-12
Organisations:
Dynamics Group
Identifiers
Local EPrints ID: 375507
URI: http://eprints.soton.ac.uk/id/eprint/375507
PURE UUID: 01e7424d-9cc8-4d42-99c2-ff6c12fab3af
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Date deposited: 02 Apr 2015 10:07
Last modified: 14 Mar 2024 19:27
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