Significant erosion of preburner faceplates was observed during recent Space Shuttle Main Engine (SSME) test firings at the NASA Technology Test Bed (TTB), Marshall Space Flight Center (MSFC), Al. The OPAD instrumentation acquired exhaust plume spectral data during each test which indicate the occurrence of metallic species consistent with faceplate component composition. A qualitative analysis of the spectral data was conducted to evaluate the state of the engine versus time for each test according to the nominal conditions of TTB firing #17 and #18. In general the analyses indicate abnormal erosion levels at or near startup. Subsequent to the initial erosion event, signal levels tend to decrease towards nominal baseline values. These findings, in conjunction with post-test engine inspections, suggest that in cases under study, the erosion may not have been catastrophic to the immediate operation of the engine.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    OPAD Status Report: Investigation of SSME Component Erosion


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Cooper, A.E. (Autor:in) / Wallace, T.L. (Autor:in) / Powers, W.T. (Autor:in)

    Kongress:

    Aerospace Atlantic Conference & Exposition ; 1992



    Erscheinungsdatum :

    01.04.1992




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    OPAD data analysis

    Buntine, Wray L. / Kraft, Richard / Whitaker, Kevin et al. | NTRS | 1993


    SSME Component Processing Review

    Price, M. / George C. Marshall Space Flight Center / United States; Office of Space Flight | British Library Conference Proceedings | 1997


    OPAD: An Innovative Rocket Engine Health Monitoring System

    Hopkins, R. C. / Benzing, D. A. / Whitaker, K. W. et al. | British Library Conference Proceedings | 1997


    Applying robust neural networks to the OPAD system

    Swaminathan, R. / Ravikrishna, R. / Whitaker, Kevin et al. | AIAA | 1994


    Applying Robust Neural Networks to the OPAD System

    Swaminathan, R. / Ravikrishna, R. V. / Whitaker, K. W. et al. | British Library Conference Proceedings | 1994