~ Life Extension Analysis and Prognostics (LEAP) Architectures

This research defined the constituents of, and developed a generalized method for predicting remaining useful life of mechanical systems. Methods for analyzing system status and health and for predicting system life expectancy need to be more powerful, insightful. reliable, and robust for data collected onboard systems in real time. Dynamic structural models were constructed to model the steady state and in-spec performance of selected mechanical systems. Variations from steady state indicated the need for preventive maintenance or other diagnostic activities on the physical system. Simulations and field data were analyzed to evaluate the approach. The methods performed well for detecting changes in measured turbine engine performance.