Integrated Vehicle Health Management for Solid Rocket Motors

摘要: Solid rocket motors (SRMs) are an integral part of human space flight providing a reliable means breaking away from the Earth's gravitational pull. The development and deployment integrated system health management (ISHM) approach for SRMs is therefore prerequisite safe exploration with next-generation Crew Heavy-Lift Launch Vehicles. This unique innovative technological effort essential novel safety strategy adopted by NASA. At core on-board ISHM real-time failure detection prognostics (FDP (iv) recovery many modes impossible, only available resource being limited thrust vector control authority (TVC); (iii) time window between detectable onset fault possible catastrophic very short (typically few seconds). overarching goal SRM FD&P to extract information data precise timing highest reliability no “misses” “false alarms”. In order achieve this in face sparse event horizons, we developing: (i) effective models nominal off-nominal operation, learned high-fidelity simulations firing tests (ii) Bayesian sensor-fusion framework estimating tracking state nonlinear stochastic dynamical system. We expect that combination these two capabilities will enable in-flight (real time) FD&P.