Szczegóły publikacji
Opis bibliograficzny
A semi-analytical approach to design of a transducer for selective wave generation / Mateusz GAWROŃSKI, Mateusz MISZCZYŃSKI, Piotr KIJANKA, Tadeusz STEPINSKI, Tadeusz UHL, Jerzy LIS, Paweł PAĆKO // Structural Health Monitoring ; ISSN 1475-9217. — 2017 — vol. 16 iss. 5, s. 583–593. — Bibliogr. s. 593, Abstr. — EWSHM 2016 : 8th European Workshop on Structural Health Monitoring : 7–8 July 2016, Spain, Bilbao
Autorzy (7)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 108905 |
|---|---|
| Data dodania do BaDAP | 2017-09-30 |
| DOI | 10.1177/1475921717698636 |
| Rok publikacji | 2017 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Structural Health Monitoring : an international journal |
Abstract
Piezoelectric transducers are extensively employed for elastic waves–based structural health monitoring and non-destructive testing systems. In those systems, multimodal, dispersive guided waves are generated and acquired through transducers attached to, or embedded into, a structure. Although, guided waves are potentially attractive due to multiple features that can be possibly used for damage detection, there exists significant complexity associated with data analysis. Proper transducer design and/or selection can substantially facilitate damage detection, evaluation and localization through selective wave generation and/or acquisition. This article discusses a topology optimization technique as a prerequisite for transducers design. A semi-analytical approach for wavefield prediction is presented. The method consists in combining analytically calculated spectral characteristics – that is, dispersion and excitability curves – of a medium, and a numerical representation of a transducer, for prediction of the resulting displacement field generated upon application of a time- and space-varying stress field. Furthermore, the model is employed in an optimization strategy, where transducer’s topology is arranged to achieve selective excitation of a guided wave mode.
