Semester

Spring

Date of Graduation

2012

Document Type

Thesis

Degree Type

MS

College

Statler College of Engineering and Mineral Resources

Department

Mechanical and Aerospace Engineering

Committee Chair

Mario Perhinschi

Committee Co-Chair

Peter Gall

Committee Member

Marcello Napolitano

Abstract

This thesis presents the development of a UAV simulation environment for the design, analysis, and comparison of autonomous flight control laws. The simulation environment was developed in MATLAB/Simulink, with custom map generation software and FlightGear 3-D visualization. Graphical user interface of the simulation environment is user-friendly and all available options are discussed in detail. Aircraft dynamic models are presented, with emphasis on newly designed UAV models. Five different aircraft models are available, with several path planning and trajectory tracking algorithms implemented. Emphasis is given to simulation of failures and other abnormal conditions, so that appropriate tools for failure detection, evaluation, and accommodation can be designed. The development of new path planning methodologies, such as optimized point of interest or automatic landing algorithms, is introduced. New developments in trajectory tracking algorithms, including adaptive controllers are discussed. An example simulation study is presented to investigate obstacle avoidance path planning algorithms, as well as the performance of trajectory tracking algorithms under both nominal and failure conditions. The results of this study are discussed with respect to optimum algorithm choice, as well as the user-friendliness of the UAV simulation environment as a whole. Finally, possible strategies for future improvements and expansion of the UAV simulation environment and its components are introduced.

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