Simulator joystick force calibration method

A simulator joystick force calibration method, comprising:

• step S1:
• powering on a simulator, activating a hydraulic system, and performing pressurization on elevator hydraulic systems A and B;
• step S2:
• moving a joystick forward and backward, placing the simulator in a neutral position, and ensuring that an angle between an axis of the joystick and an axis of a vertical position falls within a preset angle range;
• step S3:
• disposing a simulator joystick force measurement device on the joystick of the simulator;
• disposing dynamometers at multiple positions on a force measurement surface of the simulator joystick force measurement device;
• moving the joystick by the dynamometers, and maintaining the joystick at a preset elevator position;
• recording joystick forces at all the positions via sensors connected in the joystick;
• and ensuring that forces applied to move the joystick by the dynamometers remain within a preset range;
• step S4:
• determining whether the joystick force at each position matches a joystick force at a corresponding position of an actual aircraft;
• if not, proceeding to step S5;
• and if yes, proceeding to step S6;
• step S5:
• performing, for an elevator position corresponding to a joystick force not matching a joystick force at the corresponding position of the actual aircraft, a joystick force calibration based on a position parameter;
• and returning to the step S4 after the joystick force calibration;
• step S6:
• obtaining actual flight force feedback from a standard aircraft instructor;
• determining whether the joystick force is normal;
• if yes, proceeding to step S7;
• and if not, returning to the step S5;
• and
• step S7:
• moving, based on different positions of the force measurement surface, the joystick to different angles by the dynamometers;
• recording joystick force values displayed on the dynamometers at each angle, and comparing the joystick force values with corresponding verified normal simulator data;
• filtering out abnormal data;
• calculating an average of remaining multi-angle and multi-position joystick force values as a standard simulator joystick force parameter;
• and establishing an industry standard;
• wherein the simulator joystick force measurement device comprises a joystick connection device and the force measurement surface;
• two ends of the joystick connection device are disposed on the joystick;
• the force measurement surface is disposed between the two ends of the joystick connection device;
• a plane where the force measurement surface is located and a plane where the joystick connection device is located are arranged at an inclination;
• and the dynamometers are disposed on the force measurement surface and are configured to measure the joystick forces;
• the joystick connection device comprises two first cover plates and a second cover plate;
• the two first cover plates are symmetrically fixed along a center of the force measurement surface at two sides of the force measurement surface;
• and the two first cover plates are detachably fixed to the second cover plate;
• a gap is provided between each of the two first cover plates and the second cover plate;
• and the joystick connection device is sleeved onto the joystick through the gap;
• and
• that the two first cover plates are detachably fixed to the second cover plate is structured as follows:
• threaded holes are provided in each of the two first cover plates;
• and bolts are connected to the threaded holes respectively via threads and disposed on the second cover plate.