Noise Reduction of UAV Using Biomimetic Propellers with Varied Morphologies Leading-edge Serration
文献类型：期刊论文
| 作者 | Wei, Yuliang1,2; Xu, Feng1,2; Bian, Shiyuan1,2; Kong, Deyi1
|
| 刊名 | JOURNAL OF BIONIC ENGINEERING
 |
| 出版日期 | 2020-06-24 |
| 关键词 | unmanned-aerial vehicle biomimetic noise reduction LE serration rotor propeller |
| ISSN号 | 1672-6529 |
| DOI | 10.1007/s42235-020-0054-z |
| 通讯作者 | Kong, Deyi(kongdy@iim.ac.cn) |
| 英文摘要 | The Leading-Edge (LE) serrations on owls' wings are known to be responsible for silent flight. However, this design has rarely been applied to reduce the noise of rotational rotor propellers and the morphologies of the existing serration designs are diverse. Here, we present a comparative study of LE serrations with different morphologies in terms of the effectiveness in suppressing noise and promoting thrust forces. The performances of biomimetic propellers are investigated by Computational Fluid Dynamics (CFD) simulations and rotation experiments. The simulation results reveal that LE serrations could reduce velocity fluctuations and change the lamina-turbulent transition and turbulence distribution on the suction surface of propeller, but the morphology of the serrations influences its effectiveness. Rotation testing results indicate that the sawtooth propeller has the best performance on noise reduction (on average 2.43 dB and in maximum 4.18 dB) and simultaneously enhancing the thrust forces (3.53%). The largest practical noise reductions (4.73 dB and 3.79 dB) using the sawtooth propeller are observed when the quad-rotor Unmanned-Aerial Vehicle (UAV) is hovering at heights of 5 m and 8 m, respectively. Our results indicate the robustness and usefulness of owl-inspired biomimetic serration devices for aero-acoustic control and aerodynamic performance promotion on propeller designs. This finding is expected to contribute to suppressing the sound of propeller and the rotor-based aircraft. |
| WOS关键词 | AERODYNAMICS ; MODEL |
| 资助项目 | National Natural Science Foundation of China[11774355] |
| WOS研究方向 | Engineering ; Materials Science ; Robotics |
| 语种 | 英语 |
| WOS记录号 | WOS:000543609300001 |
| 出版者 | SPRINGER SINGAPORE PTE LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/43160]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Kong, Deyi |
| 作者单位 | 1.Chinese Acad Sci, Inst Intelligent Machines, State Key Lab Transducer Technol, Key Lab Biomimet Sensing & Adv Robot Technol Anhu, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230009, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Yuliang,Xu, Feng,Bian, Shiyuan,et al. Noise Reduction of UAV Using Biomimetic Propellers with Varied Morphologies Leading-edge Serration[J]. JOURNAL OF BIONIC ENGINEERING,2020. |
| APA | Wei, Yuliang,Xu, Feng,Bian, Shiyuan,&Kong, Deyi.(2020).Noise Reduction of UAV Using Biomimetic Propellers with Varied Morphologies Leading-edge Serration.JOURNAL OF BIONIC ENGINEERING. |
| MLA | Wei, Yuliang,et al."Noise Reduction of UAV Using Biomimetic Propellers with Varied Morphologies Leading-edge Serration".JOURNAL OF BIONIC ENGINEERING (2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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