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Hypersonic velocity control surface operation efficiency prediction method based on coupling

A performance prediction, hypersonic technology, applied in the field of aircraft control

Active Publication Date: 2019-11-08
BEIHANG UNIV
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Problems solved by technology

However, for hypersonic vehicles, there is a serious problem of lateral and yaw control coupling, and for aircraft such as space shuttles, the rudder effect is zero at high angles of attack and large Mach numbers, and at this time there is a problem that cannot be compensated by rudder surface control coupling. The problem

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  • Hypersonic velocity control surface operation efficiency prediction method based on coupling
  • Hypersonic velocity control surface operation efficiency prediction method based on coupling
  • Hypersonic velocity control surface operation efficiency prediction method based on coupling

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[0066] specific implementation

[0067] The present disclosure will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the related content, but not to limit the present disclosure. In addition, it should be noted that, for the convenience of description, only the parts related to the present disclosure are shown in the drawings.

[0068] A method for predicting the control effectiveness of hypersonic rudder surfaces based on coupling, which specifically includes the following contents:

[0069] S1: Establish a basis for task sub-segment division based on maneuvering efficiency requirements, and divide task sub-segments according to Mach number, angle of attack and altitude.

[0070] S2: Formula derivation is carried out for the control efficiency requirements under several conditions such as balance, stability, maneuvering and disturba...

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Abstract

The invention discloses a hypersonic velocity control surface operation efficiency prediction method based on coupling. The method specifically comprises the following steps: S1, establishing a task sub-section division basis based on an operation efficiency requirement, and performing task sub-section division according to the Mach number, the incidence angle and the height; S2, carrying out formula derivation on the operation efficiency requirement under the conditions such as balance, stability, maneuvering, disturbance and the like, and establishing operation efficiency requirement sub-models with different purposes; and S3, establishing an operation efficiency requirement criterion, and judging whether the steerage of an aircraft meets the operation efficiency requirement. When the incidence angle is high and the Mach number is large, the steerage of a rudder is zero, a coupling control strategy is provided, and the problem that compensation coupling cannot be achieved through control surface operation at the moment is solved. The method has higher engineering application value due to the fact that the actual engineering background is involved.

Description

technical field [0001] The present invention relates to the field of aircraft control, in particular to a method for controlling the efficiency of a hypersonic rudder surface based on utilizing coupling. Background technique [0002] The hypersonic trajectory-based task sub-segment division is actually based on the division of the aircraft at different positions in the corridor. This division is achieved through the segmentation of the trajectory, based on the assumption that the aircraft can fly within the task sub-segment. That is, the aircraft has sufficient maneuverability and good dynamic characteristics. [0003] There is a control coupling phenomenon in the lateral heading of the aircraft, and the coupling of conventional low-speed aircraft usually realizes normal flight by compensating for the control coupling. However, for hypersonic aircraft, there is a serious problem of lateral heading control coupling, and for aircraft such as space shuttles, the rudder rudder ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 唐鹏张曙光陈海兵
Owner BEIHANG UNIV
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