Abstract
A modified formulation of Floquet propagator is proposed to analyze free wave motion in homogeneous and periodic waveguides both in the Cartesian and in the polar coordinates. For homogeneous waveguides, it substantiates the application of a Wave Finite Element Method in polar coordinates. For radially periodic waveguides, it facilitates the application of conventional (i.e., used in Cartesian coordinates) criterion to identify frequency-wise positions of pass- and stop-bands. The application of the proposed methodology is illustrated by a simple example of a wave propagation problem governed by the Helmholtz equation (a dilatation wave in a membrane).
Original language | English |
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Title of host publication | Recent Trends in Wave Mechanics and Vibrations : Proceedings of WMVC 2022 |
Editors | Zuzana Dimitrovová, Rodrigo Gonçalves, Zuzana Dimitrovová, Paritosh Biswas, Tiago Silva |
Number of pages | 12 |
Publisher | Springer |
Publication date | 2023 |
Pages | 713-724 |
ISBN (Print) | 978-3-031-15757-8, 978-3-031-15760-8 |
ISBN (Electronic) | 978-3-031-15758-5 |
DOIs | |
Publication status | Published - 2023 |
Event | 10th International Conference on Wave Mechanics and Vibrations, WMVC 2022 - Lisbon, Portugal Duration: 4 Jul 2022 → 6 Jul 2022 |
Conference
Conference | 10th International Conference on Wave Mechanics and Vibrations, WMVC 2022 |
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Country/Territory | Portugal |
City | Lisbon |
Period | 04/07/2022 → 06/07/2022 |
Series | Mechanisms and Machine Science |
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Volume | 125 MMS |
ISSN | 2211-0984 |
Bibliographical note
Publisher Copyright:© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
Keywords
- Floquet propagator
- Periodic structures
- Polar coordinates
- WFEM