The spanwise end sealing structure of variable camber wing plays an important role in improving the deforma-tion accuracy of variable wing and preventing airflow separation.Aiming at the rigid and flexible coupling variable bending front structure,this paper proposes a flexible sealing structure design scheme with fiber-reinforced composite material as the shell and elastic base flexible material as the filler.A finite element model is established to analyze its mechanical prop-erties and sealing properties under the action of structural loads.The designed flexible sealing structure is prepared and veri-fied by experiments.The results show:(1)The simulation results of the flexible sealing structure accord with the actual deformation,the maximum stress is 412.96 MPa,and the maximum stain is 4.15%,the displacement along the wing chord gradually increases from the fixed end to the front edge,and the maximum displacement is 6.28 mm;(2)After the initial compression test,the load value of the prepared flexible sealing structure changes approximately linearly with the change of displacement,meeting the deformation requirements of the leading edge of the variable bending machine.
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