Abstract This paper discusses the preliminary results of the first PRA study applied to a NASA payload designed to house various cell cultures and toxic fixatives aboard the International Space Station. The PRA serves two purposes. First, it is used as a tool to help target high-risk areas and thus improve the payload design and operations by avoiding potential over-design and under-design. Second, the results are being shown to NASA’s safety experts to ascertain whether equivalent or improved safety could be achieved in controlling the selected end state — crew exposure to fixatives — compared with traditional qualitative failure tolerance requirements. This first application of PRA to a payload demonstrates a practical design approach that could achieve one order of magnitude improvement relative to the baseline design, a noteworthy risk reduction. Future work is required to substantiate the findings and refine the analysis commensurate with higher fidelity design features.
Application of PRA for Risk-Informed Decision-Making on a Space Station Payload
Probabilistic Safety Assessment and Management ; 1702-1707
2004-01-01
6 pages
Article/Chapter (Book)
Electronic Resource
English
International Space Station , European Space Agency , Leak Detection , Access Operation , Baseline Design Engineering , Mechanical Engineering , Performance and Reliability , Probability and Statistics in Computer Science , Computing Methodologies , Computer Applications , Management of Computing and Information Systems
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