Swing inhibition method of local space elevator system in elliptical orbit

Abstract

The present invention discloses a swing inhibition method of a local space elevator system in an elliptical orbit. A working body is a local space elevator system formed by three spacecrafts connected through two tethers. The lengths of the tethers are decided through a concrete condition, and are about 10 kilometers in a general way. When the connection of each portion of the system is completed, the whole system can be taken as a three-dimensional space tether system. A local space elevator system model is established, and a control strategy is provided aiming at the features of the system; an attitude control rule aiming at a target system is provided; and the experiment shows that: even if the system is operated on an orbit having a large eccentricity ratio, the swing inhibition method of local space elevator system in the elliptical orbit can avoid the occurrence of chaotic motion to cause out of control. The swing of the system can be effectively inhibited, and the configuration of the system can be maintained on the state required by the operation of the system. The size of the thrust required by control accords with the actual situation of the engineering, and the control effect is good.

Description

【Technical field】 [0001] The invention belongs to the field of aerospace technology, and relates to a swing suppression method for an elevator system in a local space in an elliptical orbit. 【Background technique】 [0002] With the development of space technology, space missions are becoming increasingly diverse and complex. Among many space systems, the local space elevator system is an on-orbit service technology with broad application prospects. The system can realize the transportation of goods and personnel between spacecraft with orbital gradient differences on the order of 10 kilometers to 100 kilometers, thereby avoiding the collision risk caused by the close approach and docking of space platforms, reducing fuel consumption, and greatly improving Safety of space platforms during missions. [0003] Most of the current local space elevator systems are three-body tether structures, which consist of three spacecraft and tethers connected between them. The material of...

AI Technical Summary

Problems solved by technology

When the space elevator system runs on an elliptical orbit, the entire system will become difficult to predict and control due to the existence of chaotic motion

To make matters worse, once the sway is not suppressed, different parts of the local space elevator system may collide creating an unmanageable situation

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