Research on Dynamic Deformation Reconstruction Method of Full Size Wing Rocket Sled Based on Optical Fiber Strain

UAV usually has the characteristics of high aspect ratio, and its wings are easy to produce large deformation during flight, which threatens the flight safety of UAV. Although the large UAV wing can be used for wind tunnel test of scaled model, the scaled model will affect the wing stiffness. Using the rocket sled platform to measure the deformation of the full-scale wing at different angles of attack/sideslip under the real flow velocity, the 1:1 high aspect ratio wing strength test can be carried out. It is an ideal method to use k.o theory algorithm to reconstruct the wing deformation by distributing strain parameters and pasting optical fiber strain device on the wing surface, which makes use of the characteristics of thin core diameter and light weight of optical fiber sensor.