Miniature high-precision electro-hydraulic proportional synchronizing system capable of adjusting contraction-expansion nozzle actuating ring

Abstract

The invention discloses a miniature high-precision electro-hydraulic proportional synchronizing system capable of adjusting a contraction-expansion nozzle actuating ring, which mainly controls the precise synchronous movement of the nozzle actuating ring through a special electro-hydraulic proportional system on the basis of the existing structure and limited space, and simultaneously considers the wide temperature adaptability, light weight and economical efficiency of equipment. And the force adding/receiving index required by the aircraft is met, so that the aircraft has good maneuvering characteristics. By utilizing the advantages of hydraulic transmission in the aspects of high-power mass ratio, action stability, automatic control, stepless speed regulation and the like, the electro-hydraulic proportional synchronous system meets the stress application requirement of 600kg-level axial thrust vector of a certain small turbojet engine through cooperative regulation and control of contraction and expansion of a spray pipe.

Description

A miniature high-precision electro-hydraulic proportional synchronization system for an adjustable retractable-spreading pipe actuating ring Technical field: The invention belongs to the technical field of turbojet engine control, and in particular relates to an adjustable retractable-spreading pipe actuating ring miniature A high-precision electro-hydraulic proportional synchronization system and a system preprocessing method thereof. Background technology: Today's battlefield form of great power wrestling puts forward higher-level requirements for intelligent combat technology. China's mechanized cluster assault, using the air to control the ground, and capturing the three-dimensional advantage of the air and the ground, this operational strategy focuses on highlighting the compatibility with it. combat effectiveness. As a basic key unit, high mobility air combat equipment has irreplaceable development advantages. for Some auxiliary combat training equipment such...

AI Technical Summary

Problems solved by technology

[0004] The use of electric actuators to control the retraction and expansion of the tail nozzle usually has the following problems: 1) The adaptability is not strong, the power output of the electric drive system is limited, the power quality is relatively small, and the advantage of wide-range afterburner demand is insufficient; the turbojet engine unit The increase in mass will be magnified by 7 to 8 times on the aircraft, and the system must have a higher power-to-mass ratio; 2) The control accuracy is not high. The control difficulty brought about by the deformation of the dynamic structure increases, and the structure of the equipment itself and the performance of the electric drive are also easily affected; 3) The cost is high, and a special miniature high-precision electric drive system for the aerospace field is required, which is expensive and difficult to develop independently , does not meet the economic requirements of the product

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