Air inlet passage protective cover separation track simulation method

The invention provides an air inlet protective cover separation track simulation method. The method comprises the steps of establishing a whole aircraft model; establishing a flow field model; settingboundary conditions of the flow field model, and obtaining the flow field model containing the boundary conditions; coupling the whole aircraft model and the flow field model containing the boundaryconditions to obtain a coupling simulation model; acquiring the displacement of an air inlet protective cover, the displacement of a cabin body, the displacement of a wing rudder structure, the stressof the air inlet protective cover, the stress of the cabin body and the stress of the wing rudder structure; obtaining a relative displacement curve of the air inlet protective cover and the cabin body and the wing rudder structure; acquiring a contact force change curve of the air inlet protective cover with the cabin body and the wing rudder structure respectively; and obtaining a motion trailof the separated air inlet p