A case study is presented for using models in eddy current NDE design for crack detection in Shuttle Reaction Control System thruster components. Simulations using the volume integral method with some model approximations were found to show good agreement with experimental results. Sensitivity studies were performed to explore the ideal probe orientations for varying crack lengths. However, it was found that to properly compare competing NDE technique designs, a full model-assisted POD evaluation that incorporates an assessment of the signal and noise distributions as a function of varying flaw size (crack length) is really necessary. Although performing a full model-assisted POD evaluation is not a trivial task, assumptions can be made in the evaluation process that can lead to a reasonable answer without excessive computational expense. Future work is proposed to perform a more complete MAPOD study, explore hybrid models to efficiently solve for multiscale geometries, and investigate optimum designs for improving detection of deep cracks.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Models in the design and validation of eddy current inspection for cracking in the Shuttle Reaction Control System thruster


    Weitere Titelangaben:

    Modelle zum Design und zur Bewertung der Wirbelstromprüfung bei der Rissprüfung im Shuttle Reaktionskontrollsystem zur Schuberzeugung


    Beteiligte:


    Erscheinungsdatum :

    2008


    Format / Umfang :

    8 Seiten, 8 Bilder, 10 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




    Space Shuttle reaction control thruster

    STECHMAN, R. / LYNCH, R. | AIAA | 1974


    Shuttle Reaction Control Thruster Plume Diagnostics

    Kurtz, J. J. / Starritt, L. / Nam, M. K. et al. | British Library Conference Proceedings | 1995


    Automatic Eddy Current Inspection for Space Shuttle Wheels

    Skow, Pat | Emerald Group Publishing | 1990


    Design and fabrication of Space Shuttle reaction control thruster insulated scarf nozzles

    DRENNING, C. / PHILLIPS, R. / LOUSTAU, R. et al. | AIAA | 1978


    Automated eddy current inspection of space shuttle APU turbine wheel blades

    Fisher, J.L. / Rowland, S.N. / Stolte, J.S. et al. | Tema Archiv | 1991