The Effect of Spanwise Folding on the Aerodynamic Performance of a Passively Deformed Flapping Wing-Reference-Cited by-同舟云学术

The Effect of Spanwise Folding on the Aerodynamic Performance of a Passively Deformed Flapping Wing

Published:2024-01-10 Issue:1 Volume:9 Page:42
ISSN:2313-7673
Container-title:Biomimetics
language:en
Short-container-title:Biomimetics

Author:

Qi Ming¹,Ding Menglong²,Zhu Wenguo³^ORCID,Li Shu¹

Affiliation:

1. School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China

2. Tianmushan Laboratory, Hangzhou 310023, China

3. Norinco Group Institute of Navigation and Control Technology, Beijing 100191, China

Abstract

The wings of birds exhibit multi-degree-of-freedom motions during flight. Among them, the flapping folding motion and chordwise passive deformation of the wings are prominent features of large birds in flight, contributing to their exceptional flight capabilities. This article presents a method for the fast and accurate calculation of folding passive torsional flapping wings in the early design stage. The method utilizes the unsteady three-dimensional panel method to solve the aerodynamic force and the linear beam element model to analyze the fluid–structure coupling problem. Performance comparisons of folding flapping wings with different kinematics are conducted, and the effects of various kinematic parameters on folding flapping wings are analyzed. The results indicate that kinematic parameters significantly influence the lift coefficient, thrust coefficient, and propulsion efficiency. Selecting the appropriate kinematic and geometric parameters is crucial for enhancing the efficiency of the folding flapping wing.

Publisher

MDPI AG

Link

https://www.mdpi.com/2313-7673/9/1/42/pdf

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