| Aerodynamic optimization design of general parameters for cycloidal propeller in hover based on surrogate model |
| |
| 作者姓名： | ZENG Jianan ZHU Qinghu WANG Kun ZHU Zhenhu SHEN Suiyuan |
| |
| 作者单位： | College of Aeronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China |
| |
| 摘 要： | A surrogate-model-based aerodynamic optimization design method for cycloidal propeller in hover was proposed, in order to improve its aerodynamic efficiency, and analyze the basic criteria for its aerodynamic optimization design. The reliability and applicability of overset mesh method were verified. An optimization method based on Kriging surrogate model was proposed to optimize the geometric parameters for cycloidal propeller in hover with the use of genetic algorithm. The optimization results showed that the thrust coefficient was increased by 3.56%, the torque coefficient reduced by 12.05%, and the figure of merit (FM) increased by 19.93%. The optimization results verified the feasibility of this design idea. Although the optimization was only carried out at a single rotation speed, the aerodynamic efficiency was also significantly improved over a wide range of rotation speeds. The optimal configuration characteristics for micro and small-sized cycloidal propeller were: solidity of 0.2-0.22, maximum pitch angle of 25°-35°, pitch axis locating at 35%-45% of the blade chord length.
|
| 关 键 词： | cycloidal propeller aerodynamic shape optimization key design parameters surrogate-based optimization dynamic overset mesh |
| 收稿时间： | 2018/12/25 0:00:00 |
Aerodynamic optimization design of general parameters for cycloidal propeller in hover based on surrogate model |
| |
| ZENG Jianan,ZHU Qinghu,WANG Kun,ZHU Zhenhu,SHEN Suiyuan.Aerodynamic optimization design of general parameters for cycloidal propeller in hover based on surrogate model[J].Journal of Aerospace Power,2019,34(8):1741-1750. |
| |
| Authors: | ZENG Jianan ZHU Qinghua WANG Kun ZHU Zhenhua SHEN Suiyuan |
| |
| Institution: | College of Aeronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China |
| |
| Abstract: | A surrogate-model-based aerodynamic optimization design method for cycloidal propeller in hover was proposed, in order to improve its aerodynamic efficiency, and analyze the basic criteria for its aerodynamic optimization design. The reliability and applicability of overset mesh method were verified. An optimization method based on Kriging surrogate model was proposed to optimize the geometric parameters for cycloidal propeller in hover with the use of genetic algorithm. The optimization results showed that the thrust coefficient was increased by 3.56%, the torque coefficient reduced by 12.05%, and the figure of merit (FM) increased by 19.93%. The optimization results verified the feasibility of this design idea. Although the optimization was only carried out at a single rotation speed, the aerodynamic efficiency was also significantly improved over a wide range of rotation speeds. The optimal configuration characteristics for micro and small-sized cycloidal propeller were: solidity of 0.2-0.22, maximum pitch angle of 25°-35°, pitch axis locating at 35%-45% of the blade chord length. |
| |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
