Space station freedom debris protection techniques

Christiansen, Eric L.; Robinson, J. H.; Crews, Jeanne L.; Olsen, G.D.; Vilas, F.

doi:10.1016/0273-1177(93)90590-8

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…The increasing number of space debris and small meteoroids increases the risk of collisions with satellites and other artificial components in space [1,2]. Due to highly developed telescopes and using mathematical calculations, it is possible to predict the collision location and time with larger debris and meteorites and mitigate the catastrophic impacts.…”

Section: Introductionmentioning

confidence: 99%

Development of a repair process for manmade structures in space by using aluminium brazing and friction stir spot welding

Koehler

Schmidt

et al. 2019

Weld.Tech.Rev.

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Small-sized parts and micrometeoroids’ impacts represent an increasing threat to artificial components/structures. The damages caused by them can be fixed using e.g., mechanical fixture with epoxy adhesive. However, the repair process is costly and only intended for a temporary fixing the penetration. In order to increase the life time of the repair, an approach for a more reliable process using similar materials is needed. The objective of this work is to develop a process for repairing manmade structures in space by generating joint properties similar to the base material. In this work, two approaches for repairing complex structures were considered. The first approach aims to fill a hole using liquid aluminium phases by brazing, and the second approach aims to fill the holes by a solid-state process (friction stir spot welding). In this study, different binding mechanisms of these two approaches were analyzed preliminarily by means of mechanical and/or metallographic characterization under terrestrial, controlled atmosphere conditions. Both concepts are proven feasible under these conditions. It has been shown that it is possible to realize a good filling of the hole with the investigated materials and under selected process conditions with both presented concepts.

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Section: Introductionmentioning

confidence: 99%

Development of a repair process for manmade structures in space by using aluminium brazing and friction stir spot welding

Koehler

Schmidt

et al. 2019

Weld.Tech.Rev.

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“…A number of papers and NASA reports provide a detailed description of the ISS MMOD protection strategy, requirements for protection and means to meet requirements [1][2][3][4][5][6] . ISS consists of a number of individual elements provided by NASA and international partners in Europe, Russia, Japan, and Canada.…”

Section: Introductionmentioning

confidence: 99%

Space station MMOD shielding

et al. 2009

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This paper describes International Space Station (ISS) micro-meteoroid orbital debris (MMOD) impact shielding including requirements for protection as well as technical approaches to meeting requirements. Current activities in providing MMOD protection for ISS are described, including efforts to augment MMOD protection by adding shields on-orbit. Another activity is to observe MMOD impact damage on ISS elements and returned hardware, and to compare the observed damage with predicted damage using Bumper code risk assessment software. A conclusion of this paper is that ISS will be protected adequately from MMOD impact after completing augmentation of ISS shielding for Service Module, and after improving MMOD protection for Soyuz and Progress vehicles. Another conclusion is that impact damage observed to the ISS mini-pressurized logistics module matches the distribution of impacts predicted by Bumper code.

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