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- W2626737080 abstract "New methodologies have been developed to optimize the integration, testing and certification of flight control systems, an expensive process in the aerospace industry. This thesis investigates the stability of the Cessna Citation X aircraft without control, and then optimizes two different flight controllers from design to validation. The aircraft’s model was obtained from the data provided by the Research Aircraft Flight Simulator (RAFS) of the Cessna Citation business aircraft.To increase the stability and control of aircraft systems, optimizations of two different flight control designs were performed: 1) the Linear Quadratic Regulation and the Proportional Integral controllers were optimized using the Differential Evolution algorithm and the level 1 handling qualities as the objective function. The results were validated for the linear and nonlinear aircraft models, and some of the clearance criteria were investigated; and 2) the Hinfinity control method was applied on the stability and control augmentation systems. To minimize the time required for flight control design and its validation, an optimization of the controllers design was performed using the Differential Evolution (DE), and the Genetic algorithms (GA). The DE algorithm proved to be more efficient than the GA. New tools for visualization of the linear validation process were also developed to reduce the time required for the flight controller assessment.Matlab® software was used to validate the different optimization algorithms’ results. Research platforms of the aircraft’s linear and nonlinear models were developed, and compared with the results of flight tests performed on the Research Aircraft Flight Simulator.Some of the clearance criteria of the optimized H-infinity flight controller were evaluated, including its linear stability, eigenvalues, and handling qualities criteria. Nonlinear simulations of the maneuvers criteria were also investigated during this research to assess the Cessna Citation X’s flight controller clearance, and therefore, for its anticipated certification." @default.
- W2626737080 created "2017-06-23" @default.
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- W2626737080 date "2017-01-24" @default.
- W2626737080 modified "2023-09-23" @default.
- W2626737080 title "Flight control optimization from design to assessment application on the Cessna Citation X business aircraft" @default.
- W2626737080 hasPublicationYear "2017" @default.
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