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Large Deflection Prediction of Simplified Wing for Antenna Signal Compensation

S. PARK, H. LEE, IN.-G. KIM, M.-S. KIM

Abstract


Unmanned aerial vehicles (UAV) are generally composed of high aspect ratio wings with large wing deformation. The information of deformed wing displacement is needed to adjust the signals from the embedded array antenna on the UAV wing. In this paper, the nonlinear displacement prediction algorithm (NDPA) based on the strain data is developed to predict wing deformation. The simple beam structure was chosen as the wing structure, and displacement was predicted using the strain data. The NDPA utilizes strain data which are measured from strain gauges, and these data used to predict wing deformation. The predicted displacements are compared with the measured values from laser displacement sensor. The antenna radiation pattern simulations were also conducted in order to adjust for the antenna signal using the predicted displacements.

doi: 10.12783/SHM2015/15


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