Amirkabir University of Technology AUT Journal of Modeling and Simulation 2588-2953 49 1 2017 06 01 Robust MRAC for a Wing Rock Phenomenon in Delta Wing Aircrafts 113 122 825 10.22060/miscj.2016.825 EN A. J. Humaidi Control and Systems Department, University of Technology, Baghdad, Iraq A. H. Hameed Control and Systems Department, University of Technology, Baghdad, Iraq Journal Article 2016 07 10 Wing rock phenomenon is an undesired motion appears in high angles of attack where a rolling in the aircraft in positive and negative roll angles with specified amplitude and frequency is occurred. In this paper two adaptive controllers suggested to control the rolling dynamics under wing rock phenomenon for a delta wing aircraft with presence of disturbance. Disturbance was considered as unmatched disturbance. Classical MRAC and σ-modified MRAC are the targeted controllers. Matlab/Simulink is used to simulate the wing rock phenomenon and to test the designed controllers. The simulated results show that the modified controller gives more robust characteristics than its counterpart; as it could confine different aircraft responses within bounded limits. Moreover, the modified controller shows lower control effort than classical one. https://miscj.aut.ac.ir/article_825_d554f7bb7be44a7267068a7df88ddd20.pdf