Binocular vision-based method for measuring deformation shape and deformation rate of flexible trailing edge of adaptive wing

2015 
The invention discloses a binocular vision-based method for measuring the deformation shape and the deformation rate of the flexible trailing edge of an adaptive wing and belongs to the technical field of aircraft wing structures and measuring techniques. The measurement method comprises the steps of acquiring the internal parameters, the external parameters and the steric parameters of cameras, pasting circular marker points on the endpoint of the flexible trailing edge of the adaptive wing and the upper and lower skins of the adaptive wing, controlling two cameras to synchronously shoot the flexible trailing edge at set intervals, processing the obtained images of the flexible trailing edge, detecting image plane coordinates at the circle center of the circular marker points, calculating the coordinates of the three-dimensional object space of the circular marker points, obtaining the shape of the upper and lower edges of the flexible trailing edge through the curve fitting process and calculating the deformation rate of the endpoint of the trailing edge. According to the invention, the problem of measuring the deformation shape and the deformation rate of the flexible trailing edge of the adaptive wing can be solved. Meanwhile, the influence of the contact measurement means (for example, by means of an accelerometer) on the deformation shape and the deformation rate of the flexible trailing edge can also be avoided.
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