Aircraft attitude control method and device for full-aircraft drop test for ship-borne early warning aircraft

Abstract

The invention relates to an aircraft attitude control method for a full-aircraft drop test for a ship-borne early warning aircraft. A three-point type lifting method is adopted for lifting a front aircraft body lifting point of the ship-borne early warning aircraft and symmetrical lifting points on wings on the two sides, a first lifting rope is connected with the front aircraft body lifting point, and the two ends of a second lifting rope are connected with the measured symmetrical lifting points of the wings; the first lifting rope is used for adjusting a pitch attitude of the ship-borne early warning aircraft, and the second lifting rope is used for adjusting a rolling attitude of the ship-borne early warning aircraft; and both the first lifting rope and the second lifting rope avoid a radome at the top of the ship-borne early warning aircraft, and stretching of the first lifting rope and / or the second lifting rope is controlled simultaneously through a motor. According to the aircraft attitude control method for the full-aircraft drop test for the ship-borne early warning aircraft, manual active intervention is not needed, adjustments of the pitch attitude and the rolling attitude can be achieved automatically, and the problems of low efficiency and poor precision of a prior method are solved.

Description

technical field [0001] The invention belongs to the technical field of aircraft testing, and in particular relates to an aircraft attitude control method and device for a full-aircraft drop shock test of a carrier-based early warning aircraft. Background technique [0002] When carrying out the drop shock test of the whole aircraft, it is necessary to hoist the aircraft to a specified height through the hoisting / launching system, adjust the attitude of the aircraft before launching. Due to the high rigidity and small size of the carrier-based fighter, a set of fixtures can usually be designed and fixed near the center of gravity of the aircraft, and the attitude control of the aircraft can be realized by directly adjusting the attitude of the fixture. The biggest obstacle encountered by the carrier-based early warning aircraft is the radome carried on its back, which is just near the center of gravity, so that the lifting rope and related mechanisms must avoid the radome. ...

AI Technical Summary

Problems solved by technology

Although this method is simple and easy to implement, the adjustment workload is huge. After each adjustment, the aircraft needs to be hoisted to check whether the attitude meets the requirements, and then put down the aircraft to re-adjust until the attitude reaches the target.

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