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Proceedings Paper

Projection moire interferometry measurements of micro air vehicle wings
Author(s): Gary A. Fleming; Scott M. Bartram; Martin R. Waszak; Luther N. Jenkins
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Paper Abstract

Projection Moire Interferometry (PMI) has been used to measure the structural deformation of micro air vehicle (MAV) wings during a series of wind tunnel tests. The MAV wings had a highly flexible wing structure, generically reminiscent of a bat's wing, which resulted in significant changes in wing shape as a function of MAV angle-of-attack and simulated flight speed. This flow-adaptable wing deformation is thought to provide enhanced vehicle stability and wind gust alleviation compared to rigid wing designs. Investigation of the potential aerodynamic benefits of a flexible MAV wing required measurement of the wing shape under aerodynamic loads. PMI was used to quantify the aerodynamically induced changes in wing shape for three MAV wings having different structural designs and stiffness characteristics. This paper describes the PMI technique, its application to MAV testing, and presents a portion of the PMI data acquired for the three different MAV wings tested.

Paper Details

Date Published: 26 November 2001
PDF: 12 pages
Proc. SPIE 4448, Optical Diagnostics for Fluids, Solids, and Combustion, (26 November 2001); doi: 10.1117/12.449365
Show Author Affiliations
Gary A. Fleming, NASA Langley Research Ctr. (United States)
Scott M. Bartram, NASA Langley Research Ctr. (United States)
Martin R. Waszak, NASA Langley Research Ctr. (United States)
Luther N. Jenkins, NASA Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 4448:
Optical Diagnostics for Fluids, Solids, and Combustion
Carolyn R. Mercer; Soyoung Stephen Cha; Gongxin Shen, Editor(s)

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