Transient actuation system of new principle hatch door based on power by wire

Abstract

The invention relates to a power-by-wire-based new-principle cabin door transient actuating system. The power-by-wire-based new-principle cabin door transient actuating system comprises an onboard controller, an electromotor, a hydraulic pump, an energy accumulator and a servo valve, wherein the onboard controller is connected with the electromotor, and is used for controlling revolving speed of the electromotor on the basis of a command signal outputted from the onboard controller; the hydraulic pump is connected to an output shaft of the electromotor and is driven to rotate by the electromotor; the servo valve is used for simultaneously controlling connection / disconnection of a first input end and a first output end and connection / disconnection of a second input end and a second output end on the basis of an external control signal inputted to a control end; the hydraulic pump comprises an oil outlet and an oil inlet; the oil outlet is connected with the first input end of the servo valve; the oil inlet is connected with the second input end of the servo valve; and the energy accumulator is connected to an oil line between the oil outlet and the first input end. By the power-by-wire-based new-principle cabin door transient actuating system, the installed power of a hydraulic system of an airplane can be reduced, required energy of a flight control system is ensured, load of an engine is reduced, then the weight of the airplane is reduced, and oil consumption is also reduced.

Description

technical field [0001] The invention relates to the field of hydraulic systems, in particular to a new principle cabin door transient actuation system based on power transmission. Background technique [0002] At present, several major military powers in the world are developing or have successfully developed the fourth-generation fighter jets. The stealth characteristics of the fourth-generation fighter jets require weapons to be loaded with embedded bomb bays, because external weapons greatly increase the radar scattering area of ​​fighter jets. , so that the fighter's stealth ability is greatly reduced. In addition, traditional external weapons have large flight resistance, making it difficult to achieve supersonic cruise; at the same time, the aerodynamic drag generated by external weapons also affects the maneuverability and agility of the aircraft. Therefore, embedded loading of weapons has become an inevitable choice for a new generation of fighter jets with high ste...

AI Technical Summary

Problems solved by technology

[0005] 2. High speed: Stealth requires fast opening and closing on the order of 1 second, and transient action;

As a result, the door opening and closing time cannot be further improved, the main and side doors cannot be opened at the same time, the aircraft attitude and overload are limited when the doors are opened, and the engine burden is also very prominent.

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