Zhen Wang , Qi Yuan , Yi Zhu , Wenbin Gu , Xingbo Xie
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引用次数: 0
Abstract
The rational design of three-dimensional (3D) rotors plays a crucial role in enhancing the flight efficiency of coaxial dual-rotor unmanned aerial vehicles (UAVs). Currently, the overall design methodology from the generation of two-dimensional (2D) airfoils to the design of 3D rotors is not clearly defined. In light of this, this paper puts forward a comprehensive whole-process design approach that integrates airfoil generation, 3D rotor construction, and performance testing of physical blades. This approach is founded on rigorous simulation performance analysis and comparative experiments. Specifically, a mathematical model of 3D rotor dynamics has been established. Systematically optimizing the aerodynamic performance of the 3D rotor is achieved by taking into account key parameters such as the lift-to-drag ratio, twist angle, and length. The strength of the composite material layered rotor is verified through fluid-structure coupling calculations using the rotor composite material layering technology, and the safe elastic deformation range of the rotor is determined. The performance of the designed blades is experimentally compared with that of conventional blades of the same size. Under the same dimensional constraints, the mass of the designed blades is reduced by 19.29%, the average rotational noise drops by 2.3%, and the total current consumption decreases by 18.53%. The experimental results conclusively demonstrate that the proposed 3D composite rotor design approach, predicated on 2D optimized airfoils, significantly enhances the overall flight efficiency of the coaxial dual-rotor UAV. This innovative method not only furnishes a dependable and efficient means for designing the rotors of such vehicles but also offers valuable insights and a significant reference framework for the rapid and high-performance design of coaxial dual-rotor UAV rotors.
期刊介绍:
Aerospace Science and Technology publishes articles of outstanding scientific quality. Each article is reviewed by two referees. The journal welcomes papers from a wide range of countries. This journal publishes original papers, review articles and short communications related to all fields of aerospace research, fundamental and applied, potential applications of which are clearly related to:
• The design and the manufacture of aircraft, helicopters, missiles, launchers and satellites
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Authors are invited to submit papers on new advances in the following topics to aerospace applications:
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• Data fusion
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• Complex system engineering.
Etc.