Colloquium: Mingzhou Yin (C&O)

10 juli 2018 12:30 - Locatie: Lecture room F, Faculty of Aerospace Engineering, Kluyverweg 1, Delft.

Envelope Estimation and Protection of Innovative Control Effectors (ICE) Aircraft: a Probabilistic Approach

This research proposes a novel and practical framework for flight envelope estimation and protection, in order to reduce loss-of-control-related accidents. Conventional analytical envelope estimation methods fail to function efficiently for systems with high dimensionality and complex dynamics. In this way, a probabilistic envelope estimation method was developed based on Monte Carlo simulation with extreme control effectiveness. It is shown that this method can significantly reduce the computational load and guarantee feasible and conservative envelope estimation of no less than seven dimensions. This method was applied to an over-actuated tailless fighter aircraft with complex aerodynamic coupling. The estimated probabilistic flight envelope is used for online envelope protection by a database approach. Both conventional state-constraint-based and novel predictive flight envelope protection systems were implemented on a multi-loop nonlinear dynamic inversion controller. Real-time simulation results prove that the proposed framework can protect the aircraft within the estimated envelope and prevent loss of control.