Two-engine carrier-based aircraft with one engine off safety carrier landing control method

Abstract

The invention discloses a two-engine carrier-based aircraft with one engine off safety carrier landing control method, belonging to the flight control technology field. Through researching a flight characteristic of a carrier-based aircraft with asymmetric thrust force, the invention provides a flight state simulation method of the two-engine carrier-based aircraft with one engine off. Based on anormal two-engine aircraft flight state, different constant interference is added on a flight state variable of a flight speed, a pitch angle speed, a roll angle speed and a yaw angle speed respectively, thus a flight state of the two-engine carrier-based aircraft with one engine off is obtained. Based on a simulated flight state, vertical and lateral control law are subjected to reconstruction respectively, thus the two-engine carrier-based aircraft with one engine off safety carrier landing control method is obtained. Compared with the prior art, the method in the invention has the advantages of simple structure, reliable performance, high security of carrier landing and the like.

Description

technical field [0001] The invention relates to a control method of a carrier-based aircraft, in particular to a method for safely landing a carrier-based aircraft with two engines and parking a single engine, and belongs to the technical field of flight control. Background technique [0002] The thrust asymmetry caused by the failure of one engine of the aircraft threatens flight safety. Under normal conditions, the aircraft lands with the wings in a horizontal position and the nose aligned with the centerline of the deck. After a single-engine parking failure occurs, in order to maintain force and moment balance, the aircraft cannot adopt the normal attitude for landing. Its attitude may be that the wings are tilted, the nose cannot be completely aligned with the centerline of the deck, or a combination of the two situations, etc. . [0003] In order to improve the carrier-borne aircraft's ability to deal with various failures and ensure flight safety, in addition to ado...

AI Technical Summary

Problems solved by technology

This causes the nose of the aircraft to sink and drop in altitude to regain speed and lift, so the asymmetrical pull disrupts the longitudinal balance of the aircraft

[0009] From the above analysis of the motion characteristics of the aircraft when the pull force is asymmetrical, it can be seen that the yaw moment and roll moment caused by the asymmetric pull force make the aircraft enter a dangerous attitude, especially in the landing stage of the glide guide, the aircraft will deviate from the planned glide The flight speed may be reduced below its minimum control speed, and the aircraft is prone to lose control, causing serious consequences

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