A combined experimental and numerical method for computing sound radiation from underwater vibrating structures

1997 ◽  
Vol 102 (5) ◽  
pp. 3067-3067
Author(s):  
John B. Fahnline ◽  
Matthew J. Erickson ◽  
Dean E. Capone ◽  
Stephen A. Hambric ◽  
Courtney B. Burroughs
Keyword(s):  
Numerical Method ◽  
Sound Radiation ◽  
Vibrating Structures

Hybrid Holographic-Numerical Method for Vibration Studies

1995 ◽  
Author(s):  
Joseph Der Hovanesian ◽  
Y. Y. Hung ◽  
Paul S. Sherman
Keyword(s):  
Boundary Conditions ◽  
Numerical Method ◽  
Hybrid Method ◽  
Material Properties ◽  
Holographic Interferometry ◽  
Discrete Elements ◽  
Vibrating Structures ◽  
Influence Coefficients ◽  
Material Behaviors ◽  
Eigen Values

Abstract This paper presents a hybrid experimental-numerical method for studying dynamic characteristic of vibrating structures. A continuous structure is first lumped into a number of discrete elements and its influence coefficients are measured by holographic interferometry. The eigen values and eigen vectors of the lumped system are then calculated. A major adavantage of the hybrid method is that it is not necessary to know material properties and idealize the boundary conditions, as the measured influcence coefficients will automatically reflect the real boundary and the material behaviors.

A numerical method for computation of sound radiation from an unflanged duct

2004 ◽  
Vol 270 (3) ◽  
pp. 573-586 ◽  
Author(s):  
X.X. Chen ◽  
X. Zhang ◽  
C.L. Morfey ◽  
P.A. Nelson
Keyword(s):  
Numerical Method ◽  
Sound Radiation
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