Designing Stipulated Gains of Aircraft Stability and Control Augmentation Systems for Semiglobal Trajectories Tracking. (30th January 2014)

• Record Type: Journal Article
• Authors: Elshabasy, Mohamed Mostafa Y. B.; Yoon, Yongki; Omran, Ashraf
• Other Names: Yao J. Academic Editor.; Yuan C. Academic Editor.
• Is Part Of: ISRN aerospace engineering. Volume 2014(2014)
• Publication Date: 2014-01-30
• Subjects: Aerospace engineering -- Periodicals; Aerospace engineering; Periodicals; 629.1
• DOI: 10.1155/2014/409408
• Languages: English
• ISSNs: 2314-6427

Abstract

Abstract : The main objective of the current investigation is to provide a simple procedure to select the controller gains for an aircraft with a largely wide complex flight envelope with different source of nonlinearities. The stability and control gains are optimally devised using genetic algorithm. Thus, the gains are tuned based on the information of a single designed mission. This mission is assigned to cover a wide range of the aircraft's flight envelope. For more validation, the resultant controller gains were tested for many off-designed missions and different operating conditions such as mass and aerodynamic variations. The results show the capability of the proposed procedure to design a semiglobal robust stability and control augmentation system for a highly maneuverable aircraft such as F-16. Unlike the gain scheduling and other control design methodologies, the proposed technique provides a semi-global single set of gains for both aircraft stability and control augmentation systems. This reduces the implementation efforts. The proposed methodology is superior to the classical control method which rigorously requires the linearization of the nonlinear aircraft model of the investigated highly maneuverable aircraft and eliminating the sources of nonlinearities mentioned above.