| タイトル | Addressing the Real-World Challenges in the Development of Propulsion IVHM Technology Experiment (PITEX) |
| 本文（外部サイト） | http://hdl.handle.net/2060/20050080711 |
| 著者（英） | Fulton, Christopher E.; Chicatelli, Amy; Balaban, Edward; Bajwa, Anupa; Sweet, Adam; Hayden, Sandra Claire; Maul, William A. |
| 著者所属（英） | Analex Corp. |
| 発行日 | 2005-01-01 |
| 言語 | eng |
| 内容記述 | 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. |
| NASA分類 | Spacecraft Propulsion and Power |
| レポートNO | NASA/CR-2005-213422
AIAA Paper 2004-6361
E-14948 |
| 権利 | No Copyright |
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