Active structural‐acoustic control of laminated cylindrical panels using vertically/obliquely reinforced 1‐3 piezoelectric composite

2008 ◽  
Vol 123 (5) ◽  
pp. 3870-3870
Author(s):  
Manas C. Ray
Keyword(s):  
Piezoelectric Composite ◽  
Acoustic Control ◽  
Cylindrical Panels ◽  
Structural Acoustic Control

Active Structural-Acoustic Control of Laminated Composite Truncated Conical Shells Using Smart Damping Treatment

2013 ◽  
Vol 135 (2) ◽  
Author(s):  
P. H. Shah ◽  
M. C. Ray
Keyword(s):  
Orientation Angle ◽  
Laminated Composite ◽  
Element Model ◽  
Piezoelectric Composite ◽  
Constrained Layer Damping ◽  
Conical Shells ◽  
Acoustic Cavity ◽  
Acoustic Control ◽  
Circular Conical Shells ◽  
Structural Acoustic Control

This article deals with the active structural-acoustic control of composite truncated circular conical shells using active constrained layer damping (ACLD) treatment. The constraining layer of the ACLD treatment is made of vertically/obliquely reinforced 1–3 piezoelectric composite (PZC) material. A finite element model of smart laminated truncated conical shells backed by the acoustic cavity and integrated with the patches of such ACLD treatment has been developed to demonstrate the performance of these patches for active structural-acoustic control of symmetric and antisymmetric cross-ply and antisymmetric angle-ply truncated conical laminated shells. Both velocity and pressure rate feedback control laws have been implemented to activate the patches. Particular emphasis has also been placed on investigating the effect of variation of piezoelectric fiber orientation angle in the constraining layer on the performance of the patches.

Experimental synthesis of sound pressure fields for active structural acoustic control testing

2013 ◽  
Vol 25 (7) ◽  
pp. 881-889 ◽  
Author(s):  
Stephan Algermissen ◽  
Sebastian Meyer ◽  
Christina Appel ◽  
Hans P Monner
Keyword(s):  
Sound Pressure ◽  
Pressure Fields ◽  
Acoustic Control ◽  
Structural Acoustic Control
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