Structural damping in an equi-strength cylindrical shell with an elastic filler

1996 ◽  
Vol 79 (6) ◽  
pp. 1464-1468
Author(s):  
V. M. Shopa ◽  
I. I. Popadyuk
Keyword(s):  
Cylindrical Shell ◽  
Structural Damping ◽  
Elastic Filler

A cylindrical shell with an elastic filler taking account of friction forces

1974 ◽  
Vol 8 (5) ◽  
pp. 628-630
Author(s):  
B. L. Pelekh ◽  
I. D. Cherepyuk
Keyword(s):  
Cylindrical Shell ◽  
Friction Forces ◽  
Elastic Filler

Influence of Internal Structures of High Modal Density on Shell’s Radiation

1997 ◽  
Author(s):  
Lionel Oddo ◽  
Bernard Laulagnet ◽  
Jean-louis Guyader
Keyword(s):  
Cylindrical Shell ◽  
Sound Radiation ◽  
Numerical Results ◽  
Structural Damping ◽  
Radiation Spectra ◽  
Modal Density ◽  
Internal Structures ◽  
High Modal Density

Abstract The aim of this paper is to study the sound radiation by a cylindrical shell internally coupled with mechanical structures of high modal density. The model is based on a mobility technique. The numerical results show a smoothing of the cylinder’s velocity and radiation spectra associated with an increase of the apparent damping. The use of the S.E.A. method allows us to calculate an additional structural damping of the shell, equivalent to the effect of the internal structures.

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