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EnglishUnwanted 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.
Removing surface accretions with piezo-excited high-frequency structural waves / Kalkowski, M. K.; Waters, T. P.; Rustighi, E.. - 9431(2015), pp. 94311T.1-94311T.15. ((Intervento presentato al convegno Active and Passive Smart Structures and Integrated Systems 2015 tenutosi a San Diego, CA nel 9th-10th March 2015.
| Titolo: | Removing surface accretions with piezo-excited high-frequency structural waves | |
| Autori: | Kalkowski, M. K.; Waters, T. P.; Rustighi, E. | |
| Autori Unitn: | ||
| Titolo del volume contenente il saggio: | Active and Passive Smart Structures and Integrated Systems 2015 | |
| Luogo di edizione: | Bellingham, WA | |
| Casa editrice: | SPIE | |
| Anno di pubblicazione: | 2015 | |
| Codice identificativo Scopus: | 2-s2.0-84948845112 | |
| Codice identificativo WOS: | WOS:000357640200050 | |
| ISBN: | 9781628415346 | |
| Handle: | http://hdl.handle.net/11572/290618 | |
| Citazione: | Removing surface accretions with piezo-excited high-frequency structural waves / Kalkowski, M. K.; Waters, T. P.; Rustighi, E.. - 9431(2015), pp. 94311T.1-94311T.15. ((Intervento presentato al convegno Active and Passive Smart Structures and Integrated Systems 2015 tenutosi a San Diego, CA nel 9th-10th March 2015. | |
| Appare nelle tipologie: | 04.1 Saggio in atti di convegno (Paper in proceedings) |
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