Fleet-Wide Variability for an Integrated Flight and Propulsion System Navy SBIR FY2005.2 Sol No.: Navy SBIR FY2005.2 Topic No.: N05-117 Topic Title: Fleet-Wide Variability for an Integrated Flight and Propulsion System Proposal No.: N052-117-0007 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, LLC, in collaboration with Pratt & Whitney and Pennsylvania State University proposes the development and validation of a software tool for the analysis of robustness and performance of integrated flight and propulsion control systems. This tool will enable automated analysis of the system along with its parametric and non-parametric variability to quantify system stability margins, as well as time and frequency domain performance. During the analysis, it will quantify and incorporate variability and uncertainty in dynamic performance and control. This uncertainty characterization process will account for variability in the target platform during its useful life and across an entire fleet. This tool will draw upon techniques from multivariable robust controls, nonlinear system analysis, probability and nonlinear programming. It will also characterize the effect of variability on service life and fault progression. It will represent a significant improvement in computational, time and cost saving over more cumbersome and less robust state-of-the-art techniques like Monte Carlo simulation. The primary target platform of this tool is the Joint Strike Fighter (JSF) propulsion system. During Phase I, Impact will work with Pratt & Whitney to develop and demonstrate this tool on a PC in Matlab/Simulink, using a generic engine and engine control model. Impact will also characterize the performance of this tool against state-of-the-art techniques. Phase II will expand this tool to enable analysis on the JSF integrated flight and propulsion control system. Phase III will enable migration to other engines, land based turbines, aeronautic and astronautic platforms. Benefits: The proposed software tool will be directly applicable to aero propulsion and power systems, unmanned air vehicles, spacecraft and satellites. Its attractiveness is primarily due to the cost and time saving achieved through the low-cost automated analysis it can accomplish on PC platforms. The primary application platform is the JSF, its propulsion system and controls. The total estimated production of JSF over the next 20 years exceeds 2500 units. This tool will greatly reduce the development cost of the JSF while ensuring its performance. This technology lends itself very well to the design of UAVs, where the absence of human-in-the-loop makes stability and performance analysis critical. While there are a number of UAVs currently in operation, their development is growing exponentially and the worldwide UAV market is expected to grow from $2.1 billion in 1998 to $42.2 billion by 2008. With its adaptable nature, this tool can also be used for ground, space and sea vehicles used in variety of other DoD applications. Outside the DoD examples of key industrial platforms include: commercial aircraft, turboprop and turbojet engines, satellites, land based gas turbines, land and marine propulsion systems. Return