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Proceedings Paper

In-flight aeroelastic measurement technique development
Author(s): Alpheus W. Burner; William A. Lokos; Danny A. Barrows
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Paper Abstract

The initial concept and development of a low-cost, adaptable method for the measurement of static and dynamic aeroelastic deformation of aircraft during flight testing is presented. The method is adapted from a proven technique used in wind tunnel testing to measure model deformation, often referred to as the videogrammetric model deformation (or VMD) technique. The requirements for in-flight measurements are compared and contrasted with those for wind tunnel testing. The methodology for the proposed measurements and differences compared with that used for wind tunnel testing is given. Several error sources and their effects are identified. Measurement examples using the new technique, including change in wing twist and deflection as a function of time, from an F/A-18 research aircraft at NASA's Dryden Flight Research Center are presented.

Paper Details

Date Published: 10 November 2003
PDF: 14 pages
Proc. SPIE 5191, Optical Diagnostics for Fluids, Solids, and Combustion II, (10 November 2003); doi: 10.1117/12.504157
Show Author Affiliations
Alpheus W. Burner, NASA Langley Research Ctr. (United States)
William A. Lokos, NASA Dryden Flight Research Ctr. (United States)
Danny A. Barrows, NASA Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 5191:
Optical Diagnostics for Fluids, Solids, and Combustion II
Patrick V. Farrell; Fu-Pen Chiang; Carolyn R. Mercer; Gongxin Shen, Editor(s)

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