A Vector Deflection Control Method of Binary Vector Nozzle
A vector nozzle and deflection control technology, which is applied to jet propulsion devices, machines/engines, etc., and can solve the problem of underutilized vector nozzle converging section that can be independently controlled on one side, nozzle expansion section ablation, and nozzle expansion section. Cooling effects and other issues to achieve the effect of helping the aircraft maneuver, improve safety and reliability, and increase the vector deflection angle
Active Publication Date: 2022-04-01
AECC SHENYANG ENGINE RES INST
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[0005] a) The expansion section of the nozzle needs to bear all the aerodynamic load brought by the thrust vector, which has a great impact on the cooling of the expansion section of the nozzle, and may easily cause ablation of the expansion section of the nozzle;
[0006] b) The characteristic that one side of the convergent section of the vector nozzle can be independently controlled is not fully utilized, and the control potential of the binary vector nozzle is not fully utilized
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[0021] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the pr...
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The application belongs to the technical field of aircraft engine control, and relates to a vector deflection control method of a binary vector nozzle. The method includes: Step S1, determining the target value of the vector deflection angle; According to the initial horizontal angle of the two expansion adjustment pieces, control the two expansion adjustment pieces to deflect according to the vector deflection angle target value; Step S3, after the expansion adjustment pieces are adjusted in place, control the two convergence adjustment pieces to deflect , wherein, the deflection direction of the two convergent adjustment sheets is the same as the deflection direction of the expansion adjustment sheet. This application can share the aerodynamic load to be borne by the expansion section to the convergence section, thereby improving the working reliability and service life of the binary vector nozzle. The method is simple to implement, easy to improve and widely adaptable.
Description
technical field [0001] The application belongs to the technical field of aircraft engine control, and in particular relates to a vector deflection control method of a binary vector nozzle. Background technique [0002] Stealth performance is a must-have typical feature and technical index of a new generation of combat aircraft. As the main component of the rearward visibility of the engine, the stealth performance of the exhaust system is crucial to the stealth of the engine and even the rear fuselage of the aircraft. The binary vector nozzle The structural features can better realize radar stealth and infrared stealth. The binary vector nozzle is easy to carry out stealth design, and it is easy to integrate with the rear fuselage of the aircraft. It has been successfully applied to a foreign fighter jet. [0003] In the existing binary vector nozzle design scheme, the throat area and outlet area of the nozzle can be adjusted. Considering the difference between the binar...
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IPC IPC(8): F02K1/18
CPCF02K1/18
Inventor 曹茂国陈伟博薛海波张志舒阮文博张志成姜繁生
Owner AECC SHENYANG ENGINE RES INST