Model-based CAHM Software for Dynamic Self-Test of Propulsion Control System Actuators

Impact Technologies, in collaboration with our F-35 partners, proposes to develop an embedded health monitoring software package for prognostics and health management (PHM) of propulsion control system actuators using a model-based approach. This approach will feature a detailed dynamic model of the actuator and it's components to detect impending actuation system degradation and faults. The model will be coupled with failure mode diagnostics, advanced knowledge fusion, and failure mode progression (prognostic) algorithms in a probabilistic framework. These proven approaches, along with novel tracking methods, will be developed using available JSF actuator failure mode information and test stand data. In addition, data driven or analytical techniques will also be considered to complement the model-based approach. Model order reduction will be addressed to facilitate on-board implementation and design trade-offs will be evaluated with respect to technical accuracy, required processing, and effects on life-cycle costs. Phase II will strive to the validate the developed software package on available propulsion control actuator data and demonstrate the developed embedded technologies on a JSF test platform through existing contacts. The resulting software will allow dynamic self-test of the actuators to detect incipient degradation in dynamic response of the components.