Video Link: https://www.youtube.com/watch?v=ZPvYu5OfxB8

Increasing Stability and Maneuverability of NASA #39;s Airplane Through Derivative-Free Adaptive Control
A recently developed "derivative-free adaptive control architecture" increases overall airplane safety of NASA AirSTAR flight test vehicle through dramatic improvements in stability, maneuverability, and probability of safe landing under adverse conditions, including aircraft damage. AirSTAR is a scaled transport airplane development by NASA Langley Research Center. This video illustrates that the proposed adaptive controller improves this airplane #39;s performance by at least a factor of two, which is evaluated against surface failures and degraded damping experiments. Dr. David Cox from NASA Langley Research Center talked about this method as "... one that I #39;ll front note, this controller wins in the least iteration category. It is the only controller that didn #39;t get tuned up based on pilot feedback or the initial flight data ... I don #39;t know how to quantify it, but when it just works out-of-the-box that #39;s the level of robustness I think everyone is seeking in adaptive controllers". The derivative-free adaptive controller provides faster adaptation and smoother error transients, particularly for situations where airplane dynamics undergo a sudden change in dynamics, either due to reconfiguration, deployment of a payload, or structural damage, and hence, it is beneficial for safety critical aerospace systems. For more information about this adaptive controller, check the paper by Tansel Yucelen and Anthony J. Calise: tanselyucelen.comFrom:Tansel YucelenViews:2 0ratingsTime:02:20More inScience Technology

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Increasing Stability and Maneuverability of NASA's Airplane Through Derivative-Free Adaptive Control - Video