High-speed flight high-adaptability 180-degree flip control method

Abstract

The invention provides a high-speed flight high-adaptability 180-degree flip control method, which comprises the following steps: to begin with, obtaining input conditions; then, calculating a controllable attack angle range; determining an optimum flip shape and an optimum flip attack angle; designing a maneuvering path; and designing an attack angle maneuvering strategy and a flip control strategy according to the maneuvering path, and finishing high-speed flight 180-degree flip control. The method, with significant changes of aerodynamic shape of a novel high-performance aircraft in the180-degree flip process being taken into full consideration, determines the optimum flip attack angle, carries out reasonable planning of the attack angle maneuvering path and determines the optimum flip control flow, so that the whole maneuvering process is allowed to be carried out under reasonable stability and maneuverability conditions, and flip reliability is high; and the method can be suitable for great and violent changes of aerodynamic characteristics, stability and maneuverability of the aircraft in the flip process, and can realize quick and reliable flip.

Description

technical field [0001] The invention relates to a highly adaptable 180-degree flip control method for high-speed flight, which belongs to the technical field of aerospace control. Background technique [0002] With the rapid development of aerospace technology, new high-performance aircraft have increasingly become the focus of aerospace powers and powers, and the flight trajectory modes are becoming more and more abundant. [0003] The ballistic mode of new high-performance aircraft has changed from traditional ballistic to cruising and gliding. Different ballistic modes require different aerodynamic shapes, power systems, control strategies, etc. to adapt. At present, the most complex and up-to-date ballistic mode is a new comprehensive ballistic mode formed by the organic splicing of ballistic, cruise, and gliding. In this ballistic mode, the aerodynamic shape of the aircraft is very different from the previous aircraft. In different ballistic modes, during the switchin...

AI Technical Summary

Problems solved by technology

In this ballistic mode, the aerodynamic shape of the aircraft is very different from the previous aircraft. In different ballistic modes, during the switching process between ballistic modes, especially in the transition process between cruise mode and gliding mode, the aircraft needs to perform 180-degree Flipping adapts to flight requirements, resulting in large and drastic changes in the aerodynamic characteristics of the aircraft, as well as large and drastic changes in the maneuverability, stability, and flight mechanics characteristics of the aircraft, which brings great challenges to the flip control strategy of the aircraft. Existing control strategies It is difficult to fully adapt, and there is no feasible control strategy yet

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