Method and device for cleaning space debris

Abstract

The invention discloses a method and device for cleaning space debris. According to the method, electromagnetic force is applied to the space debris running on an original orbit; the speed and/or direction of the space debris are/is changed under the action of the electromagnetic force; the space debris of which the speed is changed is changed to run on a new orbit under the action of gravity; at least the height of the perigee of the space debris on the new orbit is smaller than the height of the perigee of the space debris on the original orbit; the space debris running on the new orbit finally falls into the atmosphere of the earth under the action of atmosphere resistance. The device comprises a satellite bearing platform which is provided with an electric field device cleaning the space debris or a magnetic field device cleaning the space debris or a combination of the electric field device and the magnetic field device. The method and device for cleaning the space debris do not have high requirements for the accuracy of position detection of the space debris, micro space debris can be effectively cleaned, solar energy can be fully utilized for power generation, and self-carried energy is saved. The device for cleaning the space debris has the advantages of being simple in structure, low in manufacturing cost, and better in pulse action effect.

Description

technical field [0001] The invention belongs to the field of aerospace technology, in particular to a method and a device for removing space debris. Background technique [0002] Space debris refers specifically to the waste and its derivatives produced by human beings in space activities. Space debris comes from a variety of sources. No one can count the exact number of space debris. At present, humans can only track and monitor fragments with a diameter of more than 10 centimeters. As of April 2013, there are more than 16,649 such fragments. Among them, the United States and Russia, which have carried out space activities for a long time, accounted for about 29.7% and 37.6% of the total space debris, and my country accounted for about 22.5%. It is estimated that there are tens of millions or even hundreds of millions of debris smaller than 1 centimeter. The spacecraft cannot avoid colliding with it, and can only deal with it by strengthening its own protection capabilit...

AI Technical Summary

Problems solved by technology

Use the force of pulsed laser to change the orbit of space debris; the technology of pulsed laser to remove debris requires point-to-point thrust, which means that the accuracy of debris position detection and aiming launch is very high. Therefore, for tiny space debris ( less than 1 cm) can hardly be removed effectively

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