Supersonic flutter suppression of piezolaminated cylindrical panels based on multifield layerwise theory

2006 ◽  
Vol 291 (3-5) ◽  
pp. 1186-1201 ◽  
Author(s):  
I.K. Oh ◽  
I. Lee
Keyword(s):  
Layerwise Theory ◽  
Flutter Suppression ◽  
Cylindrical Panels ◽  
Supersonic Flutter

Aerothermoelastic Analysis of Cylindrical Piezolaminated Shells Using Multifield Layerwise Theory

2002 ◽  
Author(s):  
Il-Kwon Oh ◽  
In Lee
Keyword(s):  
Electric Fields ◽  
Thermal Stresses ◽  
Geometrically Nonlinear ◽  
Piezoelectric Actuation ◽  
Layerwise Theory ◽  
Physical Description ◽  
Aerodynamic Pressure ◽  
Nonlinear Finite Elements ◽  
Supersonic Flutter ◽  
Flutter Boundary

For the aerothermoelastic analysis of cylindrical piezolaminated shells, geometrically nonlinear finite elements based on the multi-field layerwise theory have been developed. Present multi-field layerwise theory describes zigzag displacement, thermal and electric fields providing a more realistic multi-physical description of fully and partially piezolaminated panels. By applying a Hans Krumhaar’s supersonic piston theory, supersonic flutter analyses are performed for the cylindrical piezolaminted shells subject to thermal and piezoelectric loads. The possibility to increase flutter boundary and reduce thermoelastic deformations of piezolaminated panels is examined using piezoelectric actuation. Results show that active piezoelectric actuation can effectively increase the critical aerodynamic pressure by retarding the coalescence of flutter modes and compensating thermal stresses.

Control Systems for Flutter Suppression of a Typical Section

2017 ◽  
Author(s):  
Flávio Silvestre ◽  
Mauricio Donadon ◽  
Osmar de Sousa Santos ◽  
Antônio Bernardo Guimarães Neto ◽  
ROBERTO GIL ANNES DA SILVA ◽  
...  
Keyword(s):  
Control Systems ◽  
Flutter Suppression
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