Noise characteristics of propellers with different blade tips for electric aircraft

LIU Yuanqiang; WANG Yanbing; XIANG Song; WANG Mengqi

doi:10.7527/S1000-6893.2020.24567

ACTA AERONAUTICAET ASTRONAUTICA SINICA >

2021 , Vol. 42 >Issue 3: 624567 - 624567

DOI: https://doi.org/10.7527/S1000-6893.2020.24567

Special Topic of Electric Aircraft

Noise characteristics of propellers with different blade tips for electric aircraft

LIU Yuanqiang ,
WANG Yanbing ,
XIANG Song ,
WANG Mengqi

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1. College of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, China;
2. Liaoning General Aviation Academy, Shenyang 110136, China;
3. Liaoning Ruixiang General Aircraft Manufacturing Co., Ltd., Shenyang 110136, China;
4. School of Mechanical Engineering, Shenyang Aerospace University, Shenyang 110136, China

Received date: 2020-07-23

Revised date: 2020-08-18

Online published: 2020-09-14

Supported by

Natural Science Foundation Guidance Program of Liaoning Province (2019-ZD-0225); University Scientific Research Foundation for the Introduction of Talent Project (19YB08); Projects of Education Department of Liaoning Province (JTY2020161, JYT2020162, JYT19004)

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Abstract

To design and select the propeller and minimize the overall noise of electric aircraft, first-order frequency sound pressure values of three kinds of propellers in both the cruise state and climbing state are calculated and analyzed using the LES model. The results show that the noise of the flat tip propeller is the lowest and that of the sharp propeller is the highest. The calculation results are verified via a scale model made and tested in the FL-9 wind tunnel of AVIC Aerodynamics Research Institute. The test results show good agreement with the calculation results, illustrating good engineering application value of the large eddy simulation in propeller noise calculation. Both the calculation and the test results reveal that the flat tip is helpful in electric aircraft propeller noise control.

Key words： electric aircraft; propeller design; aerodynamic noise; large eddy simulation; wind tunnel test

Cite this article

LIU Yuanqiang , WANG Yanbing , XIANG Song , WANG Mengqi . Noise characteristics of propellers with different blade tips for electric aircraft[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021 , 42(3) : 624567 -624567 . DOI: 10.7527/S1000-6893.2020.24567

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