This paper provides formally derived definitions for Thermal Protection Systems (TPS) factors of safety and margins of safety borrowing from machine design approaches. The new factors of safety and margins of safety definitions are quite simple and easy to use, and should provide improved comparison of design safety and margins of past, present and future vehicles, These definitions are then applied to several entry vehicles, including Apollo, the Space Shuttle, the Mars Viking and Pathfinder vehicles, and the Pioneer Venus entry vehicle for example and clarity, and to aid in developing a database of previous TPS design experience. In addition to the factors and margins of safety, definitions of computed reliabilities incorporation the reliability index used in machine design are also developed and presented. Adoption and use of the reliability index will hopefully considerably aid the optimization of TPS design for future vehicles.


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    Titel :

    Assessing Factors of Safety, Margins of Safety, and Reliability of Thermal Protection Systems


    Beteiligte:
    Rasky, Daniel J. (Autor:in) / Arnold, Jim O. (Autor:in)

    Kongress:

    26th Annual Conference on Composites, Materials and Structures ; 2001 ; Cocoa Beach, FL, United States


    Erscheinungsdatum :

    01.01.2001


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




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