General Fault Factor Method for Health Monitoring of a Liquid Rocket Engine

What is it about?

The current note addresses the health monitoring of an open-cycle liquid rocket engine (LRE) in a transient state using a non-steady-state fault factor method. This approach employs two strategies to handle the non-zero time-derivative term in the dynamic equations. Both strategies utilize estimated state values obtained at each step through nonlinear model-based state estimation. We validate the efficiency of the proposed algorithms through numerical simulations of an open-cycle LRE operating during a transient state, considering faults in both internal components and sensors.

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