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Parametrized Aeorelastic Reduced-Order Modeling of Fighters

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Stanford University Stanford United States

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Flight test campaigns benefit best from computational-based decision tools when these can operate in near real-time. This is because, for example, the actual flight test conditions often differ from the planned ones. For this reason, aeroelastic reduced-order models ROMs, which seek the simplest models that capture the dominant dynamics of an aeroelastic system, are often advocated for supporting flight test. However, aeroelastic ROMs can be exploited in near real-time only after they have been precomputed for specific aircraft configurations and flight conditions. Furthermore, constructing an aeroelastic ROM is typically as computationally intensive as a high-fidelity nonlinear aeroelastic simulation. Therefore, an unplanned flight configuration andor condition cannot be addressed in near real-time by the standard ROM technology. Updating aeroelastic ROMs to reflect flight test operations can solve this critical problem but is a significant challenge. Hence, the main objective of this research proposal is to develop reliable computational technologies for accelerating the computation of aeroelastic ROMs, and updating real-time computational points.

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Technical Report,01 Mar 2006,01 Aug 2009



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Approved For Public Release;

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