Modification of Position and Attitude Determination of a Test Article Through Photogrammetry to Account for Structural Deformation
Sean A. Krolikowski
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Modification of Position and Attitude Determination of a Test Article Through Photogrammetry to Account for Structural Deformation

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The Arnold Engineering Development Center (AEDC) at Arnold AFB, TN currently has a computer program which, through a process known as photogrammetry, combines multiple 2D images of a wind tunnel test article, affixed with numerous registration markers, and the known 3D coordinates of those markers. It can then accurately determine the unknown position and attitude of the test article relative to the wind tunnel. The current algorithm has a problem in that it assumes the test article is a rigid body, when, in fact, the test article experiences deformation under aerodynamic loads. Due to this de...