Addressing the Real-World Challenges in the Development of Propulsion IVHM Technology Experiment (PITEX)
Shared by EDWARD BALABAN, updated on Jun 07, 2011
Summary
- Author(s) :
- William Maul, Amy Chicatelli, Christopher Fulton, Edward Balaban, Adam Sweet, Sandra Hayden, Anupa Bajwa
- Abstract
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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