A diagnostic software package is currently being developed at NASA LeRC that utilizes qualitative model-based reasoning techniques. These techniques can provide diagnostic information about the operational condition of the modeled rocket engine system or subsystem. The diagnostic package combines a qualitative model solver with a constraint suspension algorithm. The constraint suspension algorithm directs the solver's operation to provide valuable fault isolation information about the modeled system. A qualitative model of the Space Shuttle Main Engine's oxidizer supply components was generated. A diagnostic application based on this qualitative model was constructed to process four test cases: three numerical simulations and one actual test firing. The diagnostic tool's fault isolation output compared favorably with the input fault condition.


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    Titel :

    Qualitative model-based diagnostics for rocket systems


    Beteiligte:
    Maul, William (Autor:in) / Meyer, Claudia (Autor:in) / Jankovsky, Amy (Autor:in) / Fulton, Christopher (Autor:in)

    Kongress:

    AIAA, SAE, ASME, and ASEE, Joint Propulsion Conference and Exhibit ; 1993 ; Monterey, CA, United States


    Erscheinungsdatum :

    01.06.1993


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Qualitative model-based diagnostics for rocket systems

    MAUL, WILLIAM / MEYER, CLAUDIA / JANKOVSKY, AMY et al. | AIAA | 1993


    Qualitative model-based diagnostics for rocket systems

    Maul, William / Meyer, Claudia / Jankovsky, Amy et al. | NTRS | 1993


    Rocket engine diagnostics using qualitative modeling techniques

    Binder, Michael / Maul, William / Meyer, Claudia et al. | NTRS | 1992


    Rocket engine diagnostics using qualitative modeling techniques

    BINDER, MICHAEL / MAUL, WILLIAM / MEYER, CLAUDIA et al. | AIAA | 1992


    Rocket engine diagnostics using qualitative modeling techniques

    Binder, Michael / Maul, William / Meyer, Claudia et al. | NTRS | 1992