NDLI: Strain-gage loads calibration parametric study

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Strain-gage loads calibration parametric study

Content Provider	NASA Technical Reports Server (NTRS)
Author	Stauf, Rick Lokos, William A.
Copyright Year	2004
Description	This paper documents a parametric study of various aircraft wing-load test features that affect the quality of the resultant derived shear, bending-moment, and torque strain-gage load equations. The effect of the following on derived strain-gage equation accuracy are compared: single-point loading compared with distributed loading, variation in applied test load magnitude, number of applied load cases, and wing-box-only compared with control-surface loading. The subject of this study is an extensive wing-load calibration test of the Active Aeroelastic Wing F/A-18 airplane. Selected subsets of the available test data were used to derive load equations using the linear regression method. Results show the benefit of distributed loading and the diminishing-return benefits of test load magnitudes and number of load cases. The use of independent check cases as a quality metric for the derived load equations is shown to overcome blind extrapolating beyond the load data used to derive the load equations.
File Size	939169
Page Count	28
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20040075561
Archival Resource Key	ark:/13960/t2h75cj4z
Language	English
Publisher Date	2004-01-01
Access Restriction	Open
Subject Keyword	Aircraft Design, Testing And Performance Extrapolation Bending Moments Torque Calibrating Control Surfaces Strain Gages Magnitude Aeroelasticity Wing Loading Load Tests Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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