4.7 Article

Design optimization and wind tunnel investigation of a flapping system based on the flapping wing trajectories of a beetle's hindwings

期刊

COMPUTERS IN BIOLOGY AND MEDICINE
卷 140, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compbiomed.2021.105085

关键词

Beetle hindwing; Wing tip trajectory; Flapping system; Wind tunnel; Aerodynamic characteristics

资金

  1. National Natural Science Foundation of China [31970454]
  2. Aviation Science Foundation of China [2020Z0740R4001]
  3. 111 Project [B16020]
  4. China Scholarship Council (CSC)
  5. Graduate Innovation Fund of Jilin University [101832020CX157]

向作者/读者索取更多资源

The hovering flight action of a beetle species was studied to design a flapping-wing micro air vehicle (FWMAV). Various parameters were captured and a bioinspired wing and linkage mechanism flapping system were designed. Wind tunnel tests were conducted to optimize aerodynamic characteristics, paving the way for future development of beetle-mimicking FWMAVs.
To design a flapping-wing micro air vehicle (FWMAV), the hovering flight action of a beetle species (Protaetia brevitarsis) was captured, and various parameters, such as the hindwing flapping frequency, flapping amplitude, angle of attack, rotation angle, and stroke plane angle, were obtained. The wing tip trajectories of the hindwings were recorded and analyzed, and the flapping kinematics were assessed. Based on the wing tip trajectory functions, bioinspired wings and a linkage mechanism flapping system were designed. The critical parameters for the aerodynamic characteristics were investigated and optimized by means of wind tunnel tests, and the artificial flapping system with the best wing parameters was compared with the natural beetle. This work provides insight into how natural flyers execute flight by experimentally duplicating beetle hindwing kinematics and paves the way for the future development of beetle-mimicking FWMAVs.

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