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Calibration Designs for Non-Monolithic Wind Tunnel Force BalancesThis research paper investigates current experimental designs and regression models for calibrating internal wind tunnel force balances of non-monolithic design. Such calibration methods are necessary for this class of balance because it has an electrical response that is dependent upon the sign of the applied forces and moments. This dependency gives rise to discontinuities in the response surfaces that are not easily modeled using traditional response surface methodologies. An analysis of current recommended calibration models is shown to lead to correlated response model terms. Alternative modeling methods are explored which feature orthogonal or near-orthogonal terms.
Document ID
20100019441
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Thomas H Johnson
(Old Dominion University Norfolk, Virginia, United States)
Peter A Parker
(Langley Research Center Hampton, Virginia, United States)
Drew Landman
(Old Dominion University Norfolk, Virginia, United States)
Date Acquired
August 24, 2013
Publication Date
November 1, 2010
Publication Information
Publication: Journal of Aircraft
Publisher: American Institute of Aeronautics and Astronautics
Volume: 47
Issue: 6
Issue Publication Date: November 1, 2010
ISSN: 0021-8669
e-ISSN: 1533-3868
Subject Category
Fluid Mechanics And Thermodynamics
Report/Patent Number
NF1676L-10686
Meeting Information
Meeting: 7th International Symposium on Strain-Gauge Balances
Location: Williamsburg, VA
Country: US
Start Date: May 10, 2010
End Date: May 13, 2010
Sponsors: National Aeronautics and Space Administration
Funding Number(s)
WBS: 736466.01.08.07.01.02
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Wind tunnel models
Pearson correlation coefficient
Six degree of freedom
Central composite designs
Pitching moment
Surface modeling
Computer algorithm
Value function
Hysteresis
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