The theory, methods, and applications of the videogrammetric model deformation (VMD) measurement technique used at NASA for wind tunnel testing are presented. The VMD technique, based on non-topographic photogrammetry, can determine static and dynamic aeroelastic deformation and attitude of a wind-tunnel model. Hardware of the system includes a video-rate CCD camera, a computer with an image acquisition frame grabber board, illumination lights, and retroreflective or painted targets on a wind tunnel model. Custom software includes routines for image acquisition, target-tracking/identification, target centroid calculation, camera calibration, and deformation calculations. Applications of the VMD technique at five large NASA wind tunnels are discussed.
Videogrammetric Model Deformation Measurement Technique
2001
31 pages
Report
Keine Angabe
Englisch
Videogrammetric Model Deformation Measurement Technique
AIAA | 2001
|Videogrammetric Model Deformation Measurement Technique
NTRS | 2001
|FULL-LENGTH PAPERS - Videogrammetric Model Deformation Measurement Technique
Online Contents | 2001
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