scholarly journals Sound Propagation and Attenuation Characteristics over Layered Media

1971 ◽  
Vol 49 (1A) ◽  
pp. 101-101
Author(s):  
S. P. Pao ◽  
L. B. Evans
Keyword(s):  
Sound Propagation ◽  
Layered Media ◽  
Attenuation Characteristics

A general method of modelling sound propagation in layered media

1995 ◽  
Vol 183 (1) ◽  
pp. 129-142 ◽  
Author(s):  
B. Brouard ◽  
D. Lafarge ◽  
J.-F. Allard
Keyword(s):  
Sound Propagation ◽  
Layered Media ◽  
General Method

Analysis of Vibration and Sound Propagation in a Fluid-Filled Pipe

2011 ◽  
Vol 80-81 ◽  
pp. 317-321
Author(s):  
Jin Yan ◽  
Shi Liang Zhang ◽  
Juan Zhang
Keyword(s):  
Phase Velocity ◽  
Fatigue Failure ◽  
Shell Thickness ◽  
Wave Motion ◽  
Sound Propagation ◽  
Analysis Method ◽  
Ocean Engineering ◽  
Analytical Expressions ◽  
Attenuation Characteristics ◽  
Vibration Noise

Pipelines are used widely to convey fluids and gases in the petrochemical, water, and energy sectors. Vibration, noise and fatigue failure of pipelines are serious problems in many engineering situations, especially in ship and ocean engineering areas. In this paper, the acoustic propagation and attenuation characteristics of axisymmetrical eigenmodes in a cylindrical, elastic, fluid-filled pipe are investigated analytically. Pipe equations for n=0 axisymmetrical wave motion are derived, and analytical expressions of wavenumber are obtained for s=1 and s=2 wave, which correspond to a fluid dominated wave and an axial shell wave, respectively. The numerical results for wavenumber of pipe and fluid are obtained and discussed. It shows that the frequency dependent phase velocity of this mode depend strongly upon the shell thickness/radius ratio and the density of the contained fluid. It seems that this analysis method is simple and effective.

Sound Propagation in Dissipative Layered Media

1957 ◽  
Vol 29 (11) ◽  
pp. 1264-1264
Author(s):  
R. P. Ryan ◽  
R. K. Eby ◽  
A. O. Williams
Keyword(s):  
Sound Propagation ◽  
Layered Media

scholarly journals Sound attenuation characteristics of barrier for underwater sound propagation.

1991 ◽  
Vol 18 (4) ◽  
pp. 209-212
Author(s):  
Shizuma YAMAGUCHI ◽  
Kazuoki KURAMOTO ◽  
Shin'ya KUWAHARA ◽  
Kensei OIMATSU
Keyword(s):  
Sound Propagation ◽  
Sound Attenuation ◽  
Underwater Sound ◽  
Attenuation Characteristics
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