In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 87, No. S1 ( 1990-05-01), p. S50-S50
Abstract:
Problems of dynamic interaction between a fluid and layered cylindrical shell have both technological and analytical interest. An important step on the way to understanding these interaction problems is made through the study of Scholte-Gogoladze-type waves that propagate freely along a fluid/solid interface, and decay away from the interface in both directions. The solid in this case is composed of perfectly bonded, isotropic, linearly elastic, cylindrical layers stacked radially to form a laminated cylinder. The characteristic impedance for the material in each layer of the cylinder is computed in closed form. The global surface impedance of the entire laminated cylinder is then calculated using a recursive invariant-imbedding algorithm. This formulation simplifies the enforcement of the interface conditions between the solid and the fluid. The calculations are performed exactly treating the Hankel functions that arise naturally in the problem as products of slowly varying amplitude functions and more rapidly varying exponentials. This results in an algorithm that is numerically stable for a wide range of frequencies and circumferential mode numbers. Results are presented that show the effects of layering and curvature on the dispersion spectrum of the Scholte-Gogoladze-type waves. [Work supported by ONR.]
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
1990
detail.hit.zdb_id:
1461063-2
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