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Spacecraft autonomous fly-around intersection control system verification device and spacecraft autonomous fly-around intersection control method

A technology of a control system and a verification method, which is applied in the field of the verification device of the control system of the spacecraft autonomous rendezvous and rendezvous, can solve the problems that the test time should not be too long, the ground verification site is limited, etc.

Active Publication Date: 2016-09-28
BEIHANG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

At the same time, the verification method is based on the similarity theory, and the length dimension and time dimension are scaled to solve the constraint problem that the ground verification site is limited and the test time should not be too long

Method used

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  • Spacecraft autonomous fly-around intersection control system verification device and spacecraft autonomous fly-around intersection control method
  • Spacecraft autonomous fly-around intersection control system verification device and spacecraft autonomous fly-around intersection control method
  • Spacecraft autonomous fly-around intersection control system verification device and spacecraft autonomous fly-around intersection control method

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Embodiment

[0048] This embodiment intends to illustrate the running state of the ground simulator under the method proposed by the present invention through simulation.

[0049] The semi-major axis of the target spacecraft’s orbit is a=6907900m, the eccentricity e=0.5, the attitude angle is 0rad, and the initial position of the tracking spacecraft relative to the target spacecraft is X ct0 = 100m, Y ct0 = 100m, Z ct0 =10m, initial speed Initial attitude angle Ψ 0 =0.6rad, Φ 0 =0.8rad, Θ 0 =0.7rad,Ω 0 =(0.5,0.3,0.5)rad / s, the side length of the ground test site l=10m, the basic quantity is just like the ratio coefficient: λ L = 1 / 20, λ T =1 / 5, which means that the distance scale of the relative motion of the ground simulator is 1 / 20 times of the relative motion of the space spacecraft, and the time of the ground test is 1 / 5 of the real space time.

[0050] By designing the corresponding control algorithm for the autonomous rendezvous of the spacecraft, the plane simulation diag...

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Abstract

A spacecraft autonomous fly-around intersection control system verification device and a spacecraft autonomous fly-around intersection control method belong to the field of aerospace control ground simulation. The spacecraft autonomous fly-around intersection control system verification device comprises a central fixed platform, a three-axle turntable target gesture simulator, a three-axis turntable tracked gesture simulator, a circumferential movement module, a radial movement module, a vertical movement module, a nine-freedom motion measurement and control system, a simulator dynamic calculating system and a spacecraft autonomous fly-around intersection control system. A verification process is characterized in that a simulator dynamic model is established based on a method that length of a similar theory zooms similarly with time dimension; an anticipated motion track of the simulator is obtained through calculation; and a simulator is made to track the anticipated track for realizing spacecraft autonomous fly-around intersection motion ground simulation. The verification device simulates and tracks three-axis position change of the simulator in a cylindrical coordinate system. The verification device can verify ll-direction autonomous intersection control tasks and particularly comprises a spacecraft autonomous fly-around intersection control task. Compared with existing similar devices, the spacecraft autonomous fly-around intersection control system verification device has advantages of expanding ground verification capability and realizing simple and applicable structure.

Description

technical field [0001] The invention belongs to the field of ground simulation of aerospace control, and in particular relates to a verification device and a verification method for a control system of autonomous orbiting and rendezvous of a spacecraft. Background technique [0002] The technology of autonomous orbiting and rendezvous of spacecraft is a very important space technology. For the capture and maintenance of failed spacecraft in on-orbit service missions, it is first necessary to allow the tracker to have enough time to determine the state of the target in all directions, and to find out Optimal rendezvous and docking paths, and design effective control methods to ensure safe mission execution. In the whole process, the control system needs to have high reliability and high precision. Therefore, in order to reduce the mission risk and successfully complete the space mission, sufficient experimental verification must be carried out on the ground. [0003] At pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 贾英民孙施浩贾娇
Owner BEIHANG UNIV
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