Aircraft wing fatigue test follow-up loading device and improvement method thereof

The invention belongs to the technical field of aircraft wing fatigue tests, and particularly relates to an aircraft wing fatigue test follow-up loading device and an improvement method thereof, and the improvement method comprises the steps: calculating the corresponding relation between the telescoping amount of a position control actuator cylinder and the rotation angle of a follow-up frame in the aircraft wing fatigue test follow-up loading device; fitting the corresponding rotation angle of the follow-up frame when the expansion and contraction amount of the position control actuator cylinder is zero and the corresponding rotation angle of the follow-up frame when the expansion and contraction amount of the position control actuator cylinder is maximum to obtain a fitting relationship between the expansion and contraction amount of the position control actuator cylinder and the rotation angle of the follow-up frame; and comparing the corresponding relation and the fitting relation between the expansion a