Space debris prevention structure of spacecraft

Abstract

The invention discloses a space debris prevention structure of a spacecraft, which comprises a flat and vertical inner board, a corrugated outer board and a metal foam sandwich layer, wherein the metal foam sandwich layer is arranged between the flat and vertical inner board and the corrugated outer board. The space debris prevention structure of a spacecraft disclosed by the invention can effectively resolve the debris clouds generated by impacting the prevention structure at a high speed by the space debris of different incidence angles and scatter the damage energy of the debris clouds; the filled metal foam can further crash and melt the impacted space debris and reduce the speed of the debris clouds; when the debris clouds pass through an inner flat and vertical metal panel, the inner panel further scatters the damage energy of the debris clouds, reduces the speed of the debris clouds again and stops the residual space debris after passing through the metal foam layer to a certain extend, so as to effectively reduce the damages of the space debris to the external structure of a spacecraft and a sub system.

Description

Technical field: [0001] The invention belongs to the field of space debris protection, and relates to a space debris protection structure, in particular to a spacecraft space debris protection structure. Background technique: [0002] The spacecraft is in an extraordinary space environment during its flight service. The high-speed impact of micrometeorites and space debris seriously threatens the safe operation of near-Earth orbiting spacecraft and the lives of astronauts, and the most important physical feature that threatens the safety of spacecraft is is a mechanical damage effect caused by a hypervelocity impact. Therefore, necessary protective measures must be taken for the spacecraft to ensure its safety in orbit. So far, Whipple protective structure, filled Whipple protective structure, aluminum mesh double-layer protective structure, honeycomb sandwich panel protective structure and multi-layer impact protective structure have been developed. The average impact vel...

AI Technical Summary

Problems solved by technology

The average impact velocity of space debris is 10km / s, and the damage to the protective structure is the greatest when the impact debris is directly impacted, while the debris generated by oblique impact is likely to cause damage to the external structure and subsystems of the spacecraft.

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