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Simultaneous Excitation of Multiple-Input Multiple-Output CFD-Based Unsteady Aerodynamic SystemsA significant improvement to the development of CFD-based unsteady aerodynamic reduced-order models (ROMs) is presented. This improvement involves the simultaneous excitation of the structural modes of the CFD-based unsteady aerodynamic system that enables the computation of the unsteady aerodynamic state-space model using a single CFD execution, independent of the number of structural modes. Four different types of inputs are presented that can be used for the simultaneous excitation of the structural modes. Results are presented for a flexible, supersonic semi-span configuration using the CFL3Dv6.4 code.
Document ID
20070018341
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Silva, Walter A. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2007
Subject Category
Fluid Mechanics And Thermodynamics
Meeting Information
Meeting: 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
Location: Waikiki, HI
Country: United States
Start Date: April 23, 2007
End Date: April 26, 2007
Sponsors: American Society for Composites, American Society of Civil Engineers, American Inst. of Aeronautics and Astronautics, American Helicopter Society, Inc., American Society of Mechanical Engineers
Funding Number(s)
WBS: WBS 984754
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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