Moment balance test bed for short distance-perpendicularity takeoff and landing aircraft

Abstract

The invention relates to a moment balance test bed for a short distance-perpendicularity takeoff and landing aircraft. The moment balance test bed comprises a lift fan, a ducted fan, a micro turbojetengine, a three-bearing tail spraying pipe, a six-component balance and the like, the layout of different lift systems can be simulated by adjusting the positions of the lift fan, the three-bearing tail spraying pipe and the ducted fan relative to the test bed, the six-component balance is used for measuring all-direction force and moment, affecting the flight posture, generated by a lift system,the defect that in an existing measuring scheme, different aircraft models need to be replaced for different lift systems is overcome, the defect that the moment generated by the lift systems cannot be accurately measured in the past, the torque balance condition can be judged only by observing the posture of aircraft models is overcome, and stability of the whole measuring system is maintained.

Description

technical field [0001] The invention belongs to the field of aviation aircraft testing, and relates to a short-distance / vertical take-off and landing aircraft moment balance test bed, which is particularly suitable for the experimental verification of the lift system of the short-distance / vertical take-off and landing aircraft. Background technique [0002] Since the British "Harrier" vertical take-off and landing fighter was successfully developed, the fighter with the short-range / vertical take-off and landing function has received extensive attention from major military powers because of its low take-off and landing conditions and meeting the needs of carrier-based aviation. At present, there are American F-35B and former Soviet Union's Yak-141 that have the function of short distance / vertical take-off and landing and are ready for combat. The research on STOL / VTOL aircraft in my country is still in its infancy, and it is the current research focus in the aviation field. ...

AI Technical Summary

Problems solved by technology

The previously published patent "a ground simulation flight test platform for vertical take-off and landing aircraft" introduced a similar design, but the test platform can only conduct attitude law research on the basis of the existing aircraft model combined with the test platform, and cannot adapt to different lift forces. The system layout makes it impossible to accurately measure the torque on the aircraft in all directions

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