Flexible sail unfolding device

Abstract

The invention discloses a flexible sail unfolding device which comprises a shell mechanism, a trigger mechanism, a mast unfolding mechanism, a sail storage mechanism and a flexible sail. The flexible sail is arranged in the sail storage mechanism in a folded mode, the fixed end is fixedly connected to the sail storage mechanism, the free end is fixedly connected with the mast unfolding mechanism, and the trigger mechanism is used for relieving limitation of the sail storage mechanism to the flexible sail; the mast unfolding mechanism comprises a mast assembly and a guide assembly; the mast assembly comprises masts and a center winding drum, the mast assembly comprises two back-to-back elastic masts which are wound on the outer circumference of the center winding drum and can automatically stretch into a linear shape in a free state, and a reset connector is reserved in the center winding drum. According to the flexible sail unfolding device, the defects in the prior art can be overcome, the large flexible sail surface is easy to fold and store in the launching stage, an additional power source is not needed during on-orbit unfolding, the unfolding mode is safe and reliable, and potential safety hazards are not caused to the launching process and the on-orbit working process of a satellite provided with the flexible sail unfolding device.

Description

technical field [0001] The invention relates to the field of micro-nano-satellite technology, in particular to a flexible sail deployment device for de-orbiting micro-nano-satellites. Background technique [0002] With the development of high and new technologies such as microelectronics, microelectromechanical and new materials, and advanced manufacturing, small satellite technology has developed by leaps and bounds, and has gradually become one of the engines leading the development of aerospace technology. The number of small satellites has grown explosively in recent years. Serious Threats to the safety of spacecraft in orbit. In order to reduce the threat of the number of satellites to on-orbit spacecraft, the Space Debris Committee of the Agency requires in the "IADC Space Debris Mitigation Guidelines" that the low-orbit spacecraft should be removed within 25 years after the end of the mission to re-enter the atmosphere for burning. [0003] At present, the main deorb...

AI Technical Summary

Problems solved by technology

Inflatable ball technology requires a certain booster device to be carried on the star, which brings certain safety hazards to satellite launch and long-term work, and the inevitable gas leakage caused by high-pressure gas also shortens the service life of the technology

The electrodynamic tether uses a high-speed moving conductive rope to cut the magnetic field lines of the geomagnetic field to generate a force perpendicular to the direction of the tether and the local magnetic field. For some polar orbit satellites, the electrodynamic tether method has certain limitations.

Images