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An aircraft-mounted flight release separation process control method

A separation process and control method technology, which is applied in the field of separation process control of carrier aircraft hanging and flying, can solve problems such as carrier aircraft aerodynamic interference, and achieve the effect of improving safety and reducing the risk of collision

Pending Publication Date: 2021-02-12
CHINA ACAD OF LAUNCH VEHICLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, unlike axisymmetric missiles, plane-symmetric aircraft have more severe airborne aerodynamic interference problems. For plane-symmetric aircraft that rely on aerodynamic surface flight and control, the separation safety problem is more prominent. Effective flight control methods in the region are particularly important

Method used

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  • An aircraft-mounted flight release separation process control method
  • An aircraft-mounted flight release separation process control method
  • An aircraft-mounted flight release separation process control method

Examples

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Embodiment Construction

[0030] Such as figure 1 As shown, a method for controlling the separation process of a carrier aircraft hanging and flying, the steps are as follows:

[0031] 1. Obtain the overall parameters of the aircraft and the release and separation parameters as design data, wherein the overall parameters of the aircraft include aircraft shape parameters, mass and inertia characteristic parameters, and aerodynamic data including interference in the aircraft separation zone; release and separation parameters include release altitude, speed, and Mach number , angle of attack / sideslip angle, attitude angle, attitude angular velocity, and the deviation of the parameters.

[0032] 2. This step is mainly to consider the strong aerodynamic interference of the symmetrical aircraft opposite the carrier aircraft in the separation zone. According to the aerodynamic interference characteristics of the carrier aircraft on the opposite side of the separation area, the initial rudder deflection angle...

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Abstract

The invention provides an aircraft-mounted flight release separation process control method, which comprises the following steps: firstly, acquiring an aircraft overall parameter and a release separation parameter as design data, calculating a control rudder deviation angle and a start control time initial value required for keeping a separation attitude stable, and calculating and determining anattitude angle instruction value in a separation process; then designing an attitude angle control law according to a classic control method to form a launch separation control scheme after checking acontrol rudder deviation angle and a start control time initial value through separation dynamic trajectory simulation calculation, and finally checking the effectiveness of the scheme through MonteCarlo simulation. Compared with the prior art, the invention has the advantages that in the separation control design, the initial control surface deflection angle is increased for aerial carrier aerodynamic interference in the existing plane symmetric aircraft separation process, the problem of release separation safety of aircrafts with airfoils is effectively solved, meanwhile, the fastest separation attitude angle instruction is added in the separation process, the risk of collision with the aerial carrier is greatly reduced, and the throwing separation safety is improved.

Description

technical field [0001] The invention relates to a method for controlling the separation process of hanging and launching of a carrier aircraft, which is suitable for the field of control of external hanging and launching. Background technique [0002] The non-powered space-to-ground shuttle is the key field of high-tech aerospace development in the world at this stage. After the unremitting efforts of the aerospace powers, the symmetrical space-to-ground vehicle has made great progress in the verification of key technologies. However, the process of any technology forming a product and putting it into use is a tortuous scientific and technological exploration. Before the development of aerospace vehicles, the United States used aircraft such as the White Knight to carry out demonstration and verification tests of hanging flights to fully verify key technologies. For unpowered space-to-ground plane symmetric aircraft, hanging flight launch is a common key technology flight ve...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/28G06F119/14G06F111/08G06F113/08
CPCG06F30/15G06F30/28G06F2119/14G06F2111/08G06F2113/08Y02T90/00
Inventor 邵干朱如意刘刚王征谢泽兵黄喜元丁嘉元张月玲张建英刘菲尤志鹏石庆峰冯忠伟曹晓瑞杜刚
Owner CHINA ACAD OF LAUNCH VEHICLE TECH
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