Self-stabilizing Torqueless CubeSat Braking Sail De-orbit Device

Abstract

The invention discloses a self-stabilizing non-torque cube star braking sail derailing device, which comprises a locking device, a storage mechanism, a mounting panel, a conical spring, an unfolding mechanism and a polyimide film aluminum-plated secondary surface mirror. The locking device is fixed on the top surface of the installation panel, the conical spring, the unfolding mechanism and the aluminum-plated polyimide film secondary surface mirror are all set in the storage mechanism, and are fixed on the bottom of the satellite through the top installation panel. The moving sail and de-orbiting mechanism is located outside the satellite, so it does not occupy the space inside the satellite. After receiving the command from the ground, the locking device releases the deployment mechanism, the deployment mechanism pops up, and the belt-shaped elastic mast drives the polyimide film aluminum-plated secondary surface mirror to unfold. The invention utilizes the aluminum-plated secondary surface mirror of the expanded polyimide film to increase the cross-sectional area of ​​the cube star in the flight direction and increase the atmospheric resistance suffered by the cube star, so as to accelerate the rapid departure of the cube star from orbit. The invention has the advantages of simple structure and high reliability; it does not occupy the space in the satellite and has little dependence on the satellite platform.

Description

technical field [0001] The invention belongs to the field of spacecraft off-orbit, and in particular relates to a self-stabilizing non-torque cube star braking sail device. Background technique [0002] With the continuous development of aerospace technology, the number of spacecraft launched by various countries is increasing. Most of the spacecraft do not have their own off-orbit systems and continue to operate in orbit after completing their missions, resulting in an increasing number of space debris in Earth orbit. , the potential danger of becoming an effective on-orbit spacecraft, and it is not conducive to future human exploration of space. At present, human technology is still unable to effectively deorbit spacecraft that have failed to become space debris on a large scale. Therefore, equipping future spacecraft with deorbiting systems is the main measure to slow down the growth of space debris. The vast majority of space debris comes from artificial earth satellit...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a self-stabilizing non-torque cube star braking sail de-orbit device, which is suitable for de-orbiting of three kinds of cube stars of 1U, 2U and 3U. It also solves the problem that there is no space to install the brake sail device in the smaller cube star

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