Supersonic speed large maneuvering target continuous large overload anti-stall method

Abstract

The invention provides a continuous large overload anti-stall method for a supersonic large maneuvering target, which comprises the following steps of: firstly, designing an available overload instruction resolving strategy, and when the available overload capacity nya is greater than a preset program control instruction nyc1, tracking a program control instruction by the target, otherwise, tracking the available overload instruction. Resolving of an available overload instruction is divided into two parts by setting a speed protection threshold Malim, and when the speed is higher than the threshold Malim, the available overload capacity nyah is limited by the maximum deflection angle of a channel rudder; when the speed is lower than the threshold Malim, it must be ensured that the speed of the target is increased to be higher than the threshold, and therefore the available overload capacity nyad is limited by the maximum thrust. According to the algorithm, the available overload capacity nya of the target is calculated online in real time, and a tracking instruction nyc is output to the target in real time according to a preset program control instruction nyc1 according to an available overload instruction calculation strategy, so that the speed of the target in the continuous large-overload maneuvering process is not less than a speed protection threshold, and the flight safety is ensured. Flight test results prove the effectiveness of the method.

Description

technical field [0001] The invention relates to a stall prevention method for a supersonic large maneuvering target with continuous large overload maneuvering, in particular to a target whose resistance is greater than the maximum thrust during large maneuvering. The current available overload of the target is calculated online to ensure that the target is continuously overloaded. The minimum speed is controllable when maneuvering to ensure that there is no risk of stalling. Background technique [0002] The Skylark supersonic large maneuvering target is a high-performance target jointly developed by Northwestern Polytechnical University and Xi’an Aerospace Propulsion Research Institute. The speed of sound is 9g, and the momentary large overload maneuver is blank. In order to realize the simulation of the supersonic maneuverability of fourth- and fifth-generation fighter jets, two liquid rocket engines were used in the power system scheme of the target development stage, on...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of anti-stall during the continuous large overload maneuvering process of the large maneuvering target, the present invention proposes an online generation method of the available overload command of the target based on the speed protection

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