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A Method for Analyzing the Existence of Chaotic Motion in Space Tether System

A technology of space tethering and chaotic motion, applied in the field of spacecraft flight, can solve the problems of lack of judgment and analysis methods, and difficulty in further improving the performance of spacecraft in orbit

Active Publication Date: 2021-11-05
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] The current research shows that orbital eccentricity and irregular rigid body will lead to chaotic motion of space tether system, but environmental perturbation, especially atmospheric damping and J 2 The perturbation leads to the chaotic motion of the system. At present, there is no effective judgment and analysis method that can be applied in engineering, so it is difficult to further improve the performance of the spacecraft in orbit.

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  • A Method for Analyzing the Existence of Chaotic Motion in Space Tether System

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[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Hereinafter, embodiments of the present invention will be described in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refe...

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Abstract

The embodiment of the invention discloses an analysis method for the existence of chaotic motion in a space tether system, relates to the field of spacecraft flight technology, can effectively predict the occurrence of chaotic motion, and avoids the impact of irregular chaotic motion on the space tether system. The invention includes: collecting the state parameters of the in-orbit spacecraft and the terminal load, and obtaining the space tether system according to the state parameters; obtaining the parameter plane according to the orbit inclination and orbit height of the space tether system; using the The parameter plane is used to detect the existence of chaotic motion in the space tether system through a judgment model. The invention is applicable to the flight attitude monitoring of the space tether system.

Description

technical field [0001] The invention relates to the technical field of spacecraft flight, in particular to an analysis method for the existence of chaotic motion of a space tether system. Background technique [0002] Due to the strong nonlinear structure of the space tether system itself, there must be a large number of nonlinear phenomena during the orbital flight, such as internal resonance, bifurcation, almost periodic motion, chaos, etc. In particular, the phenomenon of chaos has attracted the close attention of the majority of scientific researchers. [0003] The current research mainly includes: for the transient chaotic motion of the high-dimensional undisturbed tethered satellite system, analyze the transient chaotic phenomenon that may occur when the initial state of the system is near the unstable equilibrium point; for the space tethered system chaotic motion and orbit The research on the relationship between eccentricity and analysis shows that when the orbital...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/08
Inventor 余本嵩金栋平
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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