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Aircraft Simulation Paper

Decent Essays

This project is intended to give the student an improved understanding of aircraft dynamic behavior thought the use of a SIMULINK flight simulation. The student is to use knowledge of flying and handling qualities to appropriately grade a certain maneuver, of a certain aircraft, under a certain condition. The student is to modify the performance of an aircraft through the implementation of a control law.
For the purposed of this project, the aircraft in question will be a Convair 880 at an altitude of 35,000 ft. and Mach number of 0.8. The maneuvers performed will be predetermined pitch, roll and yaw maneuvers. These maneuvers will be completed by a “pilot” using a joystick to make control inputs with the aircraft utilizing a feedback control law, and with the aircraft in open loop configuration – no augmentation whatsoever. The student will also have a hard coded computer pilot perform these maneuvers to maintain consistency. The first step in creating the control law was placing the CL poles. The initial poles would then be placed in a K matrix; the pole values are listed in …show more content…

The figures for the flights were taken directly from the Simulink output plots. As can be noted the aircraft performed significantly better with the control law than without. No points were obtainable in the OL flights, while full points were awarded in the FB flights – both piloted and computer controlled.This project reiterated the understanding of how performance is changes with active control solutions as opposed to costly, and time intensive conventional solutions. The Convair 880 with no feedback control law could not achieve even adequate scores on the maneuvers, while with the control law, the aircraft had no troubles achieving desired results consistently, with human and computer

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