Higher-order WKB analysis of reflection from tapered elastic wedges

The reflection coefficient for a one-dimensional elastic wedge driven from an adjacent uniform plate is analysed using higher-order WKB-method matrix analysis and the results are compared with numerical simulations using Finite Elements. The numerical results are correctly predicted by the WKB analy...

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Veröffentlicht in:	Journal of sound and vibration 2019-06, Vol.449, p.368-388
Hauptverfasser:	Karlos, Angelis, Elliott, Stephen J., Cheer, Jordan
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic black hole Approximation Computer simulation Elastic wedges Finite element analysis Frequency ranges Higher-order approximation Mathematical analysis Matrix methods Non-uniform plate Numerical prediction Reflectance Reflection Sound Thickness Vibration Wedge Wedges WKB
Online-Zugang:	Volltext
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