TY - GEN
T1 - Transonic aeroelastic analysis including the effects of a nonlinear energy sink
AU - Michael McFarland, D.
AU - Beran, Philip S.
AU - Lee, Young S.
AU - Bergman, Lawrence
AU - Vakakis, Alexander F.
PY - 2007
Y1 - 2007
N2 - The work reported herein focuses on the extension of a well-established computer program to include the interaction of a nonlinear energy sink (NES) with an aeroelastic structure. We consider an initially linear structure in transonic flow and seek a realistic representation of the air loads acting upon it. For aerodynamic computations in this seed range, we have adapted the CAPTSDv computer program. It is possible to use almost all of the machinery of this program, including the modal representation of the linear primary substructure, while incorporating the equations of motion of the nonlinear attachment and replacing the time integration algorithm with one suited to the resulting state equations. A simple primary structure, a rigid airfoil with its heave and pitch motions restrained by linear springs, was chosen for the first application of this modified code.
AB - The work reported herein focuses on the extension of a well-established computer program to include the interaction of a nonlinear energy sink (NES) with an aeroelastic structure. We consider an initially linear structure in transonic flow and seek a realistic representation of the air loads acting upon it. For aerodynamic computations in this seed range, we have adapted the CAPTSDv computer program. It is possible to use almost all of the machinery of this program, including the modal representation of the linear primary substructure, while incorporating the equations of motion of the nonlinear attachment and replacing the time integration algorithm with one suited to the resulting state equations. A simple primary structure, a rigid airfoil with its heave and pitch motions restrained by linear springs, was chosen for the first application of this modified code.
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M3 - Conference contribution
AN - SCOPUS:34547503540
SN - 1563478927
SN - 9781563478925
T3 - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
SP - 3898
EP - 3905
BT - Collection of Technical Papers - 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
T2 - 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
Y2 - 23 April 2007 through 26 April 2007
ER -