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Creating a Test Validated Structural Dynamic Finite Element Model of the Multi-Utility Technology Test Bed AircraftSmall modeling errors in the finite element model will eventually induce errors in the structural flexibility and mass, thus propagating into unpredictable errors in the unsteady aerodynamics and the control law design. One of the primary objectives of Multi Utility Technology Test Bed, X-56A, aircraft is the flight demonstration of active flutter suppression, and therefore in this study, the identification of the primary and secondary modes for the structural model tuning based on the flutter analysis of X-56A. The ground vibration test validated structural dynamic finite element model of the X-56A is created in this study. The structural dynamic finite element model of the X-56A is improved using a model tuning tool. In this study, two different weight configurations of the X-56A have been improved in a single optimization run.
Document ID
20140010282
Acquisition Source
Armstrong Flight Research Center
Document Type
Presentation
Authors
Pak, Chan-Gi
(NASA Dryden Flight Research Center Edwards, CA United States)
Truong, Samson S.
(NASA Dryden Flight Research Center Edwards, CA United States)
Date Acquired
July 29, 2014
Publication Date
January 1, 2014
Subject Category
Structural Mechanics
Report/Patent Number
DFRC-E-DAA-TN14986
Meeting Information
Meeting: AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference
Location: Atlanta, GA
Country: United States
Start Date: June 16, 2014
End Date: June 20, 2014
Sponsors: American Inst. of Aeronautics and Astronautics, International Society for Structural and Multidisciplinary Optimization
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
structural dynamic model tuning
ground vibration test
multi-utility technology test bed aircraft
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