The Propulsion IVHM Technology Experiment (PITEX) has been an on-going research effort conducted over several years. PITEX has developed and applied a model-based diagnostic system for the main propulsion system of the X-34 reusable launch vehicle, a space-launch technology demonstrator. The application was simulation-based using detailed models of the propulsion subsystem to generate nominal and failure scenarios during captive carry, which is the most safety-critical portion of the X-34 flight. Since no system-level testing of the X-34 Main Propulsion System (MPS) was performed, these simulated data were used to verify and validate the software system. Advanced diagnostic and signal processing algorithms were developed and tested in real-time on flight-like hardware. In an attempt to expose potential performance problems, these PITEX algorithms were subject to numerous real-world effects in the simulated data including noise, sensor resolution, command/valve talkback information, and nominal build variations. The current research has demonstrated the potential benefits of model-based diagnostics, defined the performance metrics required to evaluate the diagnostic system, and studied the impact of real-world challenges encountered when monitoring propulsion subsystems.


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    Title :

    Addressing the Real-World Challenges in the Development of Propulsion IVHM Technology Experiment (PITEX)



    Conference:

    AIAA 1st Intelligent Systems Technical Conference ; 2004 ; Chicago, IL, United States


    Publication date :

    2005-01-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





    Addressing the Real-World Challenges in the Development of Propulsion IVHM Technology Experiment (PITEX)

    Maul, William / Chicatelli, Amy / Fulton, Christopher et al. | AIAA | 2004


    AIAA-2004-6361 Addressing the Real-World Challenges in the Development of Propulsion IVHM Technology Experiment (PITEX)

    Maul, W. / Balaban, E. / Fulton, C. et al. | British Library Conference Proceedings | 2004


    Propulsion IVHM Technology Experiment

    Chicatelli, Amy K. / Maul, William A. / Fulton, Christopher E. | NTRS | 2006


    Propulsion IVHM Technology Experiment

    A. K. Chicatelli / W. A. Maul / C. E. Fulton | NTIS | 2006