Print Email Facebook Twitter Multivariate spline-based adaptive control of high-performance aircraft with aerodynamic uncertainties Title Multivariate spline-based adaptive control of high-performance aircraft with aerodynamic uncertainties Author Tol, H.J. (TU Delft Control & Simulation) de Visser, C.C. (TU Delft Control & Simulation) Sun, LG (External organisation) van Kampen, E. (TU Delft Control & Simulation) Chu, Q. P. (TU Delft Control & Simulation) Date 2016 Abstract In this paper, a new modular adaptive control system is presented to compensate for aerodynamic uncertainties in high-performance flight control systems. This approach combines nonlinear dynamic inversion with multivariate spline-based adaptive control allocation. A new real-time identification routine for multivariate splines is presented to compensate for aerodynamic uncertainties in the control allocation system. This method, indicated as spline-based adaptive nonlinear dynamic inversion, is applied to control an F-16 aircraft subject to significant aerodynamics uncertainties. Simulation results indicate that the new controller can tune itself each time a model error is detected and has superior adaptability compared to an ordinary polynomial-based adaptive controller. Multivariate splines have sufficient flexibility and approximation power to accurately model nonlinear aerodynamics over the entire flight envelope. As a result, the global model remains intact. Although a part of the model is being reconfigured using incoming observations, the remainder of the model remains unchanged and can be used as an a priori source of information. This prevents the occurrence of sudden fundamental changes in the global model structure, which are experienced when using ordinary polynomials. To reference this document use: http://resolver.tudelft.nl/uuid:12ba0a88-1916-4a7b-a9f5-d7978984d195 DOI https://doi.org/10.2514/1.G001079 ISSN 0731-5090 Source Journal of Guidance, Control, and Dynamics: devoted to the technology of dynamics and control, 39 (4), 781-800 Bibliographical note harvest Part of collection Institutional Repository Document type journal article Rights © 2016 H.J. Tol, C.C. de Visser, LG Sun, E. van Kampen, Q. P. Chu Files PDF Control_of_fluid_flows_us ... s_2016.pdf 806.48 KB Close viewer /islandora/object/uuid:12ba0a88-1916-4a7b-a9f5-d7978984d195/datastream/OBJ/view