Volume 28 Issue 9
Sep.  2013
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XIA Qing-yuan, XU Jin-fa, JIN Kai-bao. Tilt-rotor aircraft modeling and its manipulation assignment strategy[J]. Journal of Aerospace Power, 2013, 28(9): 2016-2028.
Citation: XIA Qing-yuan, XU Jin-fa, JIN Kai-bao. Tilt-rotor aircraft modeling and its manipulation assignment strategy[J]. Journal of Aerospace Power, 2013, 28(9): 2016-2028.

Tilt-rotor aircraft modeling and its manipulation assignment strategy

  • Received Date: 2012-09-21
  • Publish Date: 2013-09-28
  • Nonlinear aerodynamic models and flight dynamic models of the flight test prototype with tilt-rotor were developed by calculating the airframe forces and moments of each component,including rotors,wings,nacelles,fuselage,horizontal tail and vertical tail.Its control characteristics on helicopter mode,the conversion mode and the airplane mode were researched.A manipulation assignment strategy of full-mode flight was presented based on the results of the trim value and the small perturbation linearized model.A difficult problem,involving aerodynamic structural components change and the manipulation redundancy with the change of flight mode in the process of flight control was overcome.A unified flight controller was designed with the help of the manipulation assignment strategy,without need to design a controller for different flight modes.The design difficulty of the flight controller was effectively reduced.Simulation results demonstrate the credibility of the tilt-rotor aircraft flight dynamics model and the effectiveness of the manipulation assignment strategy.

     

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