Removing surface accretions with piezo-excited high-frequency structural waves
Removing surface accretions with piezo-excited high-frequency structural waves
Unwanted accretions on structures are a common machinery maintenance problem, which can pose a serious safety threat if not treated effectively and punctually. In this paper we investigate the capability of piezo-excited structural waves for invoking delamination of accreted material from waveguides. We apply a wave-based technique for modelling piezoelectric excitation based on semi-analytical finite elements to model the interface shear stress associated with piezo-actuated structural waves. As a proof of concept, we present a demonstration experiment in which patches of material are removed from a beam-like waveguide with emulated anechoic terminations using ultrasonic excitation.
Kalkowski, Michal
6f0d01ef-7f44-459c-82a2-03f9e1275eda
Waters, Timothy
348d22f5-dba1-4384-87ac-04fe5d603c2f
Rustighi, Emiliano
9544ced4-5057-4491-a45c-643873dfed96
2 April 2015
Kalkowski, Michal
6f0d01ef-7f44-459c-82a2-03f9e1275eda
Waters, Timothy
348d22f5-dba1-4384-87ac-04fe5d603c2f
Rustighi, Emiliano
9544ced4-5057-4491-a45c-643873dfed96
Kalkowski, Michal, Waters, Timothy and Rustighi, Emiliano
(2015)
Removing surface accretions with piezo-excited high-frequency structural waves.
SPIE Smart Structures & NDE 2015, San Diego, United States.
08 - 12 Mar 2015.
(doi:10.1117/12.2087048).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Unwanted accretions on structures are a common machinery maintenance problem, which can pose a serious safety threat if not treated effectively and punctually. In this paper we investigate the capability of piezo-excited structural waves for invoking delamination of accreted material from waveguides. We apply a wave-based technique for modelling piezoelectric excitation based on semi-analytical finite elements to model the interface shear stress associated with piezo-actuated structural waves. As a proof of concept, we present a demonstration experiment in which patches of material are removed from a beam-like waveguide with emulated anechoic terminations using ultrasonic excitation.
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MKK - Removing surface accretions with piezo-excited high-frequency structural waves.pdf
- Accepted Manuscript
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Published date: 2 April 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: 375840
URI: http://eprints.soton.ac.uk/id/eprint/375840
PURE UUID: 8424af41-f2d4-4540-b1f1-65c8625026c4
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Date deposited: 17 Apr 2015 09:22
Last modified: 14 Mar 2024 19:33
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