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.


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    Title :

    Application of PRA for Risk-Informed Decision-Making on a Space Station Payload


    Contributors:


    Publication date :

    2004-01-01


    Size :

    6 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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