Modal analysis, flutter analysis and pneumatic servo elasticity analysis integrated modeling method

The invention provides a modal analysis, flutter analysis and pneumatic servo elasticity analysis integrated modeling method. The method comprises the following steps: 1, establishing a modal analysis finite element grid; 2, establishing a finite element grid interpolation node set; 3, establishing a wing rudder quality representation node set; 4, a rigid body vibration mode is obtained, and data is provided for modal analysis pretreatment and flutter analysis and pneumatic servo elasticity analysis pretreatment at the same time; 5, flutter analysis control parameters, pneumatic parameters and working conditions are determined; 6, establishing a pneumatic surface of the wing rudder component; 7, establishing a body-like aerodynamic surface of the airframe, 5-7 performing flutter analysis pretreatment, and providing data for servo aeroelasticity analysis pretreatment; 8, generating an unsteady aerodynamic force solving file; 9, generating a generalized quality solution file; and 8 to 9, carrying out pneumatic