Document Type : Research Article

Authors

1 Assistant Professor. Faculty of Mechanical Engineering, Malek Ashtar University of Technology, Iran, Shahin Shahr, Iran.

2 M.Sc. Faculty of Mechanical Engineering, Malek Ashtar University of Technology, Iran, , Shahin Shahr, Iran.

Abstract

The design of a controller for a thrust vector control system of UAV has been studied through the robust  H control method. In the first, the governing space-state equations of the system have been derived using the bond graph approach. Then, the critical performance parameters of the system were evaluated and identified according to the operational feasibility and the range of successful performance of the system. Next, the weight functions of the robust H,including the indeterminate weight function under the influence of specified uncertainties, were determined. Finally, the consistency of robust control in the presence of uncertainties was evaluated and the results of deflection of thrust vectoring nozzle were compared with the performance results of an optimized PID controller. The simulation results are determined using the MATLAB environment. The results of this study showed that the bond-graph method has good validity for modeling of this system and the designed robust controller can also meet its mission requirements

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Main Subjects

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