Active stiffeners for shape and vibration control of circular plate structure

2002 ◽  
Author(s):  
Michael K. Philen ◽  
Kon-Well Wang
Keyword(s):  
Vibration Control ◽  
Circular Plate ◽  
Plate Structure

Vibration Control on Shells through Theoretical and Numerical Analysis

2014 ◽  
Vol 539 ◽  
pp. 18-21
Author(s):  
De Xin Ren ◽  
Jie Hong ◽  
Lu Lu Chen
Keyword(s):  
Numerical Analysis ◽  
Vibration Control ◽  
Imaginary Part ◽  
Numerical Study ◽  
Dissipated Energy ◽  
Plate Structure ◽  
Theoretical And Numerical Analysis ◽  
Stiffness And Damping ◽  
Air Film ◽  
Damping Model

A theoretical and numerical study has been performed on an air film damper attached to a plate structure. Combined with the analysis by Fox and Whitton, a damping model of the air film damper has been developed. A complex stiffness was introduced to represent the air pressure in the damper cavity. The stain energy and dissipated energy were integrated from the real part and imaginary part of the complex stiffness to determine the stiffness and damping. The response of the plate with the air film damper was considered by treating the air film as multiple discrete damping-stiffness elements using ANSYS.

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