Controller design and simulation for a helicopter during target engagement

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Date

2011

Author

Avcıoğlu, Sevil

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The aim of this thesis is to design a controller for an unmanned helicopter to perform target engagement. This mission is briefly defined as; the helicopter flies to a firing point under the commands of a trajectory controller, and then it is aligned to the target with attitude control. After weapon firing, the helicopter initiates a return maneuver under again the commands of the trajectory controller. This mission where the continuous systems and discrete guidance decisions are to be executed in coherence can be studied as a hybrid control problem. One hybrid control approach which is used in this study is the representation based on two motion primitives: trim trajectories and maneuvers. To obtain the desired trim trajectories and the maneuvers, a dynamic inversion based controller is developed. The controller has two loops: the inner loop which controls the helicopter attitudes and the outer loop which controls the helicopter trajectory. A guidance algorithm is developed which enables the controller to switch from the inner loop to the outer loop or vice versa. Simulations are generated to test the controller performance.

Subject Keywords

Vehicles, Remotely piloted., Aerospace engineering., Helicopters

URI

http://etd.lib.metu.edu.tr/upload/12613868/index.pdf
https://hdl.handle.net/11511/20830

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

S. Avcıoğlu, “Controller design and simulation for a helicopter during target engagement,” M.S. - Master of Science, Middle East Technical University, 2011.