Self-calibration measuring device and method for rotational inertia of flying body with wings

The invention relates to a self-calibration measuring device and method for rotational inertia of a flying body with wings. The device comprises a rotating vertical shaft, a torsion bar, a sector gear pair, a bearing disc, a supporting seat, a plate spring supporting arm, a knife edge supporting arm, a first movable clamping plate, a second movable clamping plate, a left-right rotating screw rod, a first motor speed reducer, a second motor speed reducer, a base, a first guide plate, a second guide plate, a machine seat, a base, a knife edge, a knife edge mounting seat, a displacement transmission block and a plate spring. A base and a plate spring displacement driving device; circumferential torsional pendulum and vertical compound pendulum motion of the measured product can be completed, the knife edge compound pendulum rigidity coefficient can be calibrated according to the given calibration method while the product is measured, measurement of the three-axis rotational inertia of the product is completed, t