Multi-finger envelope fault-tolerant capture device and method for spatial rolling failure target

Abstract

The invention discloses a multi-finger envelope fault-tolerant catching device and method for a space rolling failure target, The device comprises a service spacecraft carrying a multi-fingered hand catching mechanism, wherein each finger of the multi-fingered hand catching mechanism comprises a point finger composed of an intermediate rigid portion and an outer flexible portion, and the flexibleportion enables the space roll-over failure target and the multi-fingered hand catching mechanism to collide without affecting the normal operation of the service spacecraft. When the service spacecraft is synchronized with the space roll-over failure target, the multi-fingered hand capture mechanism approaches the target and envelopes the target in a given time interval, that is, the target is constrained in the capture space region formed by the multi-fingered hand mechanism, and then the finger is tightened to capture the target. Aiming at the target with space roll-over failure, the accurate target information is not needed in capturing and the target is adaptive. After the capture, the target can be precisely manipulated to achieve takeover control.

Description

technical field [0001] The invention relates to the field of capture of space failure targets, in particular to a multi-finger envelope fault-tolerant capture device and method for space rollover failure targets. Background technique [0002] With the continuous exploration and utilization of space resources by human beings, a large amount of space garbage caused by various reasons such as malfunctioning satellites, various explosions, and debris has gradually caused a shortage of space resources, and at the same time caused serious damage to space security. threaten. It is imminent to clean up invalid spacecraft or orbital junk, but due to the non-cooperative nature of space junk (no special capture and docking mechanism, no cooperative measurement device, loss of attitude adjustment ability, etc.), it is extremely challenging to capture. [0003] Existing catching methods can be divided into contact and non-contact types. Among them, the contact type can be subdivided in...

AI Technical Summary

Problems solved by technology

[0004] To sum up, in contact capture, rigid capture is relatively mature, but it requires accurate target information and high control precision during the capture process, and the claws can only be applied to specific structures. The target is not universal; although flexible capture has good fault tolerance, it is difficult to detect and maintain the target after capture and perform precise takeover operations (attitude / orbit adjustment); the theory of non-contact capture is still in the process of developing

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