Reduced Order Nonlinear Dynamic Aeroservoelasticity

M4 Engineering proposes to develop methods and software to generate reduced order nonlinear models of dynamic aeroserovelastic systems. The reduced order models will be based on a hybrid NARMAX-Wavelet model, in which the basic linear behavior and gentle nonlinearities in the dynamics are captured by a Nonlinear AutoRegressive, Moving Average with eXogenous inputs (NARMAX) model with polynomial behavior, and harsh nonlinearities that result localized discontinuities or transitions are captured with a Wavelet network. This approach will allow the system to capture the range of nonlinear dynamics encountered in complex DASE systems with very efficient models suitable for use early in the design cycle.

Potential NASA applications will include the use of the developed technology for design of any new generation aircraft or RLV system including complex nonlinear DASE behavior, including HALE vehicles, transonic vehicles, truss-braced wing configurations, low-boom supersonic configurations, etc.

This technology is expected to have commercial applications to aircraft design of subsonic transports, supersonic vehicles, bombers, fighters, UAV's, and general aviation airplanes. As such, it is expected to have significant commercial applications in airplane structural design, primarily with DoD, NASA, and the prime contractors.

This is early/mid-stage (TRL 3) — the most realistic path in is NASA SBIR/STTR, which funds small businesses and research institutions to develop technology aligned with NASA's needs (equity-free, phased funding). Check whether a current SBIR/STTR solicitation topic overlaps with this project's technology area, or contact the project directly (above) to ask.

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