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Rotor Cross-Tilt Optimization of Manned Multi-rotor eVTOL Aircraft for Yaw Control Efficiency

Xufei Yan, Jiandong Cai, Bin Lou, Yiren Hu, Anhuan Xie, Shiqiang Zhu, Libo Cheng, Xiaobo Wang, Zhejiang University

https://doi.org/10.4050/F-0079-2023-18052

Abstract:
This paper proposed a rotor cross-tilt optimization method of manned multi-rotor eVTOL aircraft for yaw control efficiency improvement. Firstly, the flight dynamics model of a 500kg low-altitude manned multi-rotor eVTOL aircraft is established, and the accuracy of the model is verified by single arm test platform and flight test data. Then, a rotor cross-tilt optimization method which simultaneously completes the trim and optimization calculation, is designed to maximize the overall control efficiency under different loads, forward flight speeds and rotor mounting angle errors. The manipulation derivative is applied to analyze the influence of the optimal rotor tilt angle on the control efficiency of each control channel. Finally, the feasibility of the optimization method is verified by comparing the ground(3DOF test platform) and flight test data of the prototype before and after optimization. Results show that the control efficiency of yaw channel is improved while the control efficiency of other control channels are basically maintained, so as to achieve the overall optimal control performance. In addition, the endurance time of the prototype is also improved, and the greater the load, the more obvious the improvement.


Rotor Cross-Tilt Optimization of Manned Multi-rotor eVTOL Aircraft for Yaw Control Efficiency

  • Presented at Forum 79
  • 11 pages
  • SKU # : F-0079-2023-18052
  • Electric VTOL

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Rotor Cross-Tilt Optimization of Manned Multi-rotor eVTOL Aircraft for Yaw Control Efficiency

Authors / Details:
Xufei Yan, Jiandong Cai, Bin Lou, Yiren Hu, Anhuan Xie, Shiqiang Zhu, Libo Cheng, Xiaobo Wang, Zhejiang University