Absorbing boundary conditions for solid waveguides
| Autor: | H. Sprenger, Lothar Gaul, S.R. Raman |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
Guided wave testing business.industry Wave propagation Mechanical Engineering Acoustics Condensed Matter Physics Boundary knot method Finite element method law.invention Optics Mechanics of Materials law General Materials Science Ultrasonic sensor Boundary value problem business Waveguide Civil and Structural Engineering Extended finite element method |
| Zdroj: | Mechanics Research Communications. 38:158-163 |
| ISSN: | 0093-6413 |
| Popis: | We present two simple and effective schemes to formulate absorbing boundary conditions for time harmonic finite element analyses of waveguide structures. An impedance matching condition, applicable to single mode waveguides, is derived as well as an enhanced method for multi-modal wave propagation, making use of guided wave mode orthogonality. Both types are implemented in models generated with standard finite element software. Two examples of ultrasonic transducers attached to cylindrical waveguides are presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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