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JRM Vol.30 No.3 pp. 337-343
doi: 10.20965/jrm.2018.p0337
(2018)

Paper:

Development of Bio-Inspired Low-Noise Propeller for a Drone

Ryusuke Noda*, Toshiyuki Nakata**, Teruaki Ikeda**, Di Chen**, Yuma Yoshinaga**, Kenta Ishibashi**, Chen Rao**, and Hao Liu**

*Department of Mechanical Engineering, Kanto Gakuin University
1-50-1 Mutsuura-Higashi, Kanazawa-ku, Yokohama-shi, Kanagawa 236-8501, Japan

**Graduate School of Engineering, Chiba University
1-33 Yayoi-cho, Inage-ku, Chiba-shi, Chiba 263-8522, Japan

Received:
November 30, 2017
Accepted:
May 13, 2018
Published:
June 20, 2018
Keywords:
drone, multicopter, noise suppression, bio-inspired technology, computational fluid dynamics
Abstract
Development of Bio-Inspired Low-Noise Propeller for a Drone

Z-weighted sound pressure levels of basic and plate attached propellers

Multicopter-type unmanned aerial vehicles, called drones, have been attracting wide attention because of their immense potential for use in various missions such as surveillance, reconnaissance, and delivery service. For the application of drones, however, their noise will be a serious issue especially when operating in urban areas, and to our knowledge, it has not been resolved yet. In this study, inspired by the unique wing structures of insects and birds, we have developed new low-noise-type propellers for drones. The various bio-inspired attachments of drones such as the serrations at the leading edge, velvet-like surface, and fringes at the trailing edge were tested, and their acoustic and aerodynamic performances were evaluated experimentally and numerically. Our results indicate that an attachment at the trailing edge can suppress the noise level while maintaining the aerodynamic efficiency of the proposed propeller close to that of the basic propeller.

Cite this article as:
R. Noda, T. Nakata, T. Ikeda, D. Chen, Y. Yoshinaga, K. Ishibashi, C. Rao, and H. Liu, “Development of Bio-Inspired Low-Noise Propeller for a Drone,” J. Robot. Mechatron., Vol.30, No.3, pp. 337-343, 2018.
Data files:
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Last updated on Nov. 16, 2018