Considering the uncertainty of the flight dynamics model of the tilt-rotor aircraft in different flight modes, an
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adaptive controller for full flight modes control system of tilt-rotor aircraft is designed. Taking advantage of the separation of robustness and adaptive design of the
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adaptive controller, adaptive gain, and low-pass filter are designed to achieve the desired control performance and meet the requirements of flight quality. The simulations of XV-15 tilt-rotor aircraft in helicopter mode and airplane mode are carried out. Then, the simulation of conversion mode is further carried out. The results show that the tilt-rotor aircraft can track the reference signal well under the
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control system. In addition, the changes of states as well as controls in conversion mode flight are quite smooth which is very meaningful for engineering application.
The Investigation on
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Adaptive Control of the Tilt-Rotor Aircraft
