Method for constructing digital complete machine coordinates of aircraft with high aspect ratio

The invention discloses a method for constructing digital complete machine coordinates of an aircraft with a high aspect ratio. The method comprises steps of: selecting six reference points, rotatingthe midpoint connecting line of the reference point on the front side of the fuselage and the reference point on the rear side of the fuselage of the wing by a certain angle to serve as a Y axis; projecting a plane formed by a connecting line of the Y axis and the reference point on the front side of the fuselage by the reference point of the wing, and moving to serve as an X axis; establishing the Cartesian coordinate system to serve as the coordinate system of the aircraft body. The problem that when an existing fitting method is used for establishing the coordinate system of the aircraft body, due to the fact that the fitting error is too large due to the wing droop amount, the coordinate system of the aircraft body cannot be accurately established is solved. 一种高展弦比飞机数字化整机坐标构建的方法，选取六个基准点，并将机翼的机身前侧基准点和机身后侧的基准点的中