Inflected wings in flight: Uniform flow of stresses makes strong and light wings for stable flight

JOURNAL OF THEORETICAL BIOLOGY

卷:508

Article

Mardanpour, Pezhman¹  Izadpanahi, Ehsan¹  Powell, Shanae¹  Rastkar, Siavash¹  Bejan, Adrian² 

[1] Florida Int Univ, Miami, FL 33174 USA

[2] Duke Univ, Durham, NC 27708 USA

关键词: Design;    Inflected wing;    Flow of stresses;    Flutter;   

DOI  :  10.1016/j.jtbi.2020.110452

来源: Elsevier

【 摘 要 】

Flying animals morph and flex their wings during their flight. Their wings morph with the turbulent flow created around them. The wings of modern airplanes do not have this ability. In this study we show that the ability to flex the wings leads to greater stability (higher flutter speed), and that this is due to the more uniform distribution of stresses in the flexing wing. This way the flexing wing becomes the lightest per unit of flapping force, or the strongest per unit of weight. (C) 2020 Elsevier Ltd. All rights reserved.

【 授权许可】

Free