Scholarlink

<p>Tilt-rotor aircraft represent a significant area of development for advanced military and civilian aerial vehicles. One of the critical challenges researchers face is improving the multimodal aerodynamic efficiency of these aircraft across various flight regimes, such as hovering and high-speed cruising. Research has shown that conventional fixed-twist blade designs do not achieve optimal aerodynamic performance for both hovering and cruising conditions. By designing blades that can adapt their twist distribution for each specific flight mode, significant improvements in payload capacity and aerodynamic efficiency can be achieved. This study focuses on modifying the blade torsion angles of a high-performance rotor propeller using aerodynamic design principles and a torsion actuation mechanism. After validating computational fluid dynamics (CFD) methodologies and conducting grid-independence studies, flow field simulations and aerodynamic performance predictions of the rotor propeller have been performed. The findings demonstrate that while maintaining the rotor propeller’s cruise efficiency above 83%, adjusting the blade torsion angles during hover through variable-twist regulation increases the average hovering efficiency from 68.05% to 73.22%. This study demonstrates that rotor propellers designed with flexible variable-torsion capabilities can maintain high cruise efficiency during high-speed flight while simultaneously enhancing aerodynamic performance during hovering through blade variable-torsion actuation.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Analyzing the Aerodynamic Performance of Variable Torsion Rotor Propellers

  • 期刊论文

  • 发表日期：

    2026年7月9日

查看全文
  • Wenhui Yan,
  • Qing Chen,
  • Kun Zhang,
  • Xiao Tian,
  • Zhenjun Zhao,
  • Zonghan Yu

摘要

Tilt-rotor aircraft represent a significant area of development for advanced military and civilian aerial vehicles. One of the critical challenges researchers face is improving the multimodal aerodynamic efficiency of these aircraft across various flight regimes, such as hovering and high-speed cruising. Research has shown that conventional fixed-twist blade designs do not achieve optimal aerodynamic performance for both hovering and cruising conditions. By designing blades that can adapt their twist distribution for each specific flight mode, significant improvements in payload capacity and aerodynamic efficiency can be achieved. This study focuses on modifying the blade torsion angles of a high-performance rotor propeller using aerodynamic design principles and a torsion actuation mechanism. After validating computational fluid dynamics (CFD) methodologies and conducting grid-independence studies, flow field simulations and aerodynamic performance predictions of the rotor propeller have been performed. The findings demonstrate that while maintaining the rotor propeller’s cruise efficiency above 83%, adjusting the blade torsion angles during hover through variable-twist regulation increases the average hovering efficiency from 68.05% to 73.22%. This study demonstrates that rotor propellers designed with flexible variable-torsion capabilities can maintain high cruise efficiency during high-speed flight while simultaneously enhancing aerodynamic performance during hovering through blade variable-torsion actuation.