Model-based CAHM Software for Dynamic Self-Test of Propulsion Control System Actuators Navy SBIR FY2005.2 Sol No.: Navy SBIR FY2005.2 Topic No.: N05-094 Topic Title: Model-based CAHM Software for Dynamic Self-Test of Propulsion Control System Actuators Proposal No.: N052-094-0006 Firm: Impact Technologies, LLC 200 Canal View Blvd, Ste 300 Rochester, New York 14623-2851 Contact: Carl Byington Phone: (814) 861-6273 Web Site: www.impact-tek.com Abstract: 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. Benefits: With the successful developments and implementation of this effort, it is strongly anticipated that the prototype algorithms and software module will be of significant benefit to the F-35. Ultimately, the software could be applied to hydraulic, hydro-electrical, and electrical actuator systems and implemented as an on-board, at-wing, or depot-level maintenance strategy. Availability improvements will be realized through the reduction of recurring and nonrecurring PHM actions on actuator systems. The realization of such an automated, prognostic reasoning package will significantly enhance the maintainer's ability to schedule maintenance activities, optimize operational life cycles, and reduce the overall logistics footprint. Better diagnosis of actuation systems and more accurate time-to-failure predictions will reduce the risk of safety-related system failures and decrease costly inspection routines as well as premature component replacements by using a risk-based, maintenance optimization technique. This development is applicable to civilian aviation applications (passenger aircraft, cargo transports, business jets, private aircraft, etc.). The developed approach and design products could be adapted for a variety of other commercial applications, including: land and marine propulsion systems, industrial actuation systems, fluid power transmission, robotic applications, weapon systems, and air vehicles operating in sustained supersonic cruise. Return