Title page for ETD etd-12052005-234041


Type of Document Master's Thesis
Author Ajami, Amir Farrokh
URN etd-12052005-234041
Title Adaptive Flight Control in the Presence of Input Constraints
Degree Master of Science
Department Aerospace and Ocean Engineering
Advisory Committee
Advisor Name Title
Hovakimyan, Naira Committee Chair
Schaub, Hanspeter Committee Member
Woolsey, Craig A. Committee Member
Keywords
  • Control Saturation
  • Adaptive Control
  • Flight Control
Date of Defense 2005-12-02
Availability unrestricted
Abstract
Aerospace systems such as aircraft or missiles are subject to environmental and dynamical ncertainties. These uncertainties can alter the performance and stability of these systems. Adaptive control offers a useful means for controlling systems in the presence of uncertainties. However, very often adaptive

controllers require more control effort than the actuator limits allow. In this thesis the original work of others on single input single output adaptive control in the presence of actuator amplitude limits is extended to multi-input systems. The Lyapunov based stability analysis is presented. Finally, the resultant technique is applied to aircraft and missile longitudinal motion.

Simulation results show satisfactory tracking of the states of modified reference system.

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