Wing aerodynamics modeling method

The invention relates to the field of aeroelasticity, in particular to a wing aerodynamics modeling method. The airplane stiffness and mass distribution can be obtained in the early airplane design period under the condition of undefined wing structure arrangement. According to the wing aerodynamics modeling method provided by the invention, firstly, a finite element model of a wing pure metal plate element is built; the obtained aerodynamic lift is calculated; then, the thickness of the metal plate element is used as a variable, the wing tip deformation, the gravity center, the modal frequency, the flutter speed and the like are used as constraint conditions, and the wing weight is used as an optimization objective; finally, a group of metal plate element thickness distribution values is obtained through optimization calculation, so that the airplane stiffness and mass distribution is simulated; and the wing stiffness and mass distribution can be fast obtained in the early airplane design period under the conditions that the wing structure arrangement is not clear and only the wing pneumatic appearance and the weight are known, so that the wing aerodynamics feature analysis is carried out.