Traditional space vehicle avionics design trades consider factors such as weight, power, reliability, performance, software complexity, and hardware costs. These factors are typically compared on a unit-to-unit basis without any causative relationships to the total space vehicle operating system. Traditionally, there is not a quantitative measure of the precedence between these factors in the selection process. For the OTV avionics study, a figure of merit (FOM) equation was developed that quantified the relationship between these factors and mission parameters (such as propellant delivery cost, and space station attendant manhour cost) for a total life cycle cost (LCC) comparison. The FOM equation was applied incrementally resulting in a curve having a minimal life cycle cost with a partial OTV redundancy. Some interesting results were obtained with this comprehensive approach.


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    Title :

    OTV avionics and subsystems design utilizing life cycle cost techniques


    Additional title:

    Entwurf von Avionik und Subsystemen fuer Raumfahrzeuge unter Beruecksichtigung der Lebensdauerkosten


    Contributors:
    Maki, S.C. (author)


    Publication date :

    1986


    Size :

    8 Seiten, 3 Bilder, 10 Tabellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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