Higher‐order finite‐element analysis of topographic guides supporting elastic surface waves
作者:
P. E. Lagasse,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1973)
卷期:
Volume 53,
issue 4
页码: 1116-1122
ISSN:0001-4966
年代: 1973
DOI:10.1121/1.1913432
出版商: Acoustical Society of America
数据来源: AIP
摘要:
A method of computing the eigenmodes of acoustic waveguides of arbitrary cross section is described. It is a finite‐element technique, based on a variational formulation of the guided‐wave problem. The accuracy of the method is assessed by comparing numerical and experimental results for a few specific structures. In particular we describe an acoustic surface ridge waveguide with low dispersion over a broad band.
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