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A comprehensive design method to balance efficiency and noise for high-thrust electric UAV propellers

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  • Hu, Chaobin
  • Shao, Wenlong
  • Chen, Xiaomiao
  • Kong, Xiangguo

Abstract

The design of high-thrust propellers faces significant challenges in balancing efficiency and noise. Traditional design methods prioritize either efficiency or noise reduction, making it difficult to balance both, particularly for high-thrust applications. In this paper, we propose a comprehensive design method to address this issue. This method determines the chord length and pitch angle distribution under specific operating conditions based on the blade element theory. A sliding mesh method was used to evaluate the propeller's aerodynamic performance and noise, and its accuracy was validated. An orthogonal experimental method was used to optimize propeller thrust, efficiency, and noise under specific operating conditions, and the optimal combination of structural parameters of the propeller was determined. The results show that under the thrust requirement of 1500 N, the propeller achieves an efficiency of 69.6 %, with a noise level of 105.2 dB at the specified location. This work provides a technical approach to balance efficiency and noise, and offers practical value for the development of high-thrust propellers.

Suggested Citation

  • Hu, Chaobin & Shao, Wenlong & Chen, Xiaomiao & Kong, Xiangguo, 2025. "A comprehensive design method to balance efficiency and noise for high-thrust electric UAV propellers," Energy, Elsevier, vol. 327(C).
    • Handle: RePEc:eee:energy:v:327:y:2025:i:c:s0360544225020869
    DOI: 10.1016/j.energy.2025.136444
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