Multi-system coupling dynamics modeling method for multi-propeller tilt-rotor aircraft

The invention provides a multi-system coupling dynamics modeling method for a multi-propeller tilt-rotor aircraft. The method comprises the steps that 1, coordinate systems of all systems and the relation between the coordinate systems are established; step 2, establishing an aerodynamic model according to the body coordinate system, the wing deformation coordinate system and the blade deformation coordinate system; 3, according to the wing deformation coordinate system, a high-aspect-ratio wing dynamic model is established; 4, establishing a nacelle dynamic model according to the wing undeformed coordinate system; 5, according to the blade deformation coordinate system, establishing a rotor kinetic model; and 6, according to the high-aspect-ratio wing dynamics model, the nacelle dynamics model and the rotor wing dynamics model, establishing a multi-propeller/nacelle/high-aspect-ratio wing coupling system dynamics equation. 本申请提供一种多桨倾转机翼旋翼飞行器多系统耦合动力学建模方法，所述方法包括：步骤1：建立各系统坐标系，及坐标系间的关系；步骤2：根据机体坐标系、机翼变形坐标系和桨叶变形坐标