Flight dynamics and control modelling of damaged asymmetric aircraft

4th AEROTECH- Innovation in Aerospace Engineering and Technology

航空航天工程

Ogunwa, T.T.^1 ; Abdullah, E.J.^1

Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, Malaysia^1

关键词: Controllable systems;    Damage scenarios;    Direct adaptive control;    Dynamic stability analysis;    Dynamics and control;    Linear quadratic regulator controllers;    Loss of stability;    Stability derivatives;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/152/1/012022/pdf
DOI  :  10.1088/1757-899X/152/1/012022

学科分类：航空航天科学

来源: IOP

【 摘 要 】

This research investigates the use of a Linear Quadratic Regulator (LQR) controller to assist commercial Boeing 747-200 aircraft regains its stability in the event of damage. Damages cause an aircraft to become asymmetric and in the case of damage to a fraction (33%) of its left wing or complete loss of its vertical stabilizer, the loss of stability may lead to a fatal crash. In this study, aircraft models for the two damage scenarios previously mentioned are constructed using stability derivatives. LQR controller is used as a direct adaptive control design technique for the observable and controllable system. Dynamic stability analysis is conducted in the time domain for all systems in this study.