Inverse identification, optimization, and active structural acoustic control of aircraft interior noise using piezoelectric actuators

1998 ◽  
Vol 104 (3) ◽  
pp. 1775-1775 ◽  
Author(s):  
Chris R. Fuller ◽  
Scott D. Paxton ◽  
Gary P. Gibbs
Keyword(s):  
Piezoelectric Actuators ◽  
Interior Noise ◽  
Inverse Identification ◽  
Acoustic Control ◽  
Structural Acoustic Control

Active Sandwich Trim Panels for Quieter Aircraft Interior

1999 ◽  
Author(s):  
J. Q. Sun
Keyword(s):  
Experimental Data ◽  
Noise Suppression ◽  
Noise Control ◽  
Interior Noise ◽  
Sandwich Composite ◽  
Power Transfer ◽  
Acoustic Control ◽  
Active Controls ◽  
Trim Panel ◽  
Structural Acoustic Control

Abstract Recent research in the area of structural acoustic control for aircraft interior noise suppression has been focused on developing active trim panels. Active trim panels being part of non-critical structures offer many advantages over active controls applied to load critical structures such as aircraft frames and skins. This paper presents a study of active sandwich composite trim panels. The paper first investigates the effect of curvature on the dynamics of the trim panel, and the power transfer between the actuator and the host panel. Experimental data of interior noise control are then presented to demonstrate the application of the active trim panels.

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