The Effect of Spanwise Folding on the Aerodynamic Performance of a Passively Deformed Flapping Wing
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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
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| Series: | Biomimetics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2313-7673/9/1/42 |
| _version_ | 1797344568045207552 |
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| author | Ming Qi Menglong Ding Wenguo Zhu Shu Li |
| author_facet | Ming Qi Menglong Ding Wenguo Zhu Shu Li |
| author_sort | Ming Qi |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-08T11:04:36Z |
| format | Article |
| id | doaj.art-a777c69547344353bcb2f83ffa69b5a4 |
| institution | Directory Open Access Journal |
| issn | 2313-7673 |
| language | English |
| last_indexed | 2024-03-08T11:04:36Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomimetics |
| spelling | doaj.art-a777c69547344353bcb2f83ffa69b5a42024-01-26T15:16:19ZengMDPI AGBiomimetics2313-76732024-01-01914210.3390/biomimetics9010042The Effect of Spanwise Folding on the Aerodynamic Performance of a Passively Deformed Flapping WingMing Qi0Menglong Ding1Wenguo Zhu2Shu Li3School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaTianmushan Laboratory, Hangzhou 310023, ChinaNorinco Group Institute of Navigation and Control Technology, Beijing 100191, ChinaSchool of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaThe 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.https://www.mdpi.com/2313-7673/9/1/42folding motionflapping wingfluid–structure couplingunsteady panel methodpropulsion efficiency |
| spellingShingle | Ming Qi Menglong Ding Wenguo Zhu Shu Li The Effect of Spanwise Folding on the Aerodynamic Performance of a Passively Deformed Flapping Wing Biomimetics folding motion flapping wing fluid–structure coupling unsteady panel method propulsion efficiency |
| title | The Effect of Spanwise Folding on the Aerodynamic Performance of a Passively Deformed Flapping Wing |
| title_full | The Effect of Spanwise Folding on the Aerodynamic Performance of a Passively Deformed Flapping Wing |
| title_fullStr | The Effect of Spanwise Folding on the Aerodynamic Performance of a Passively Deformed Flapping Wing |
| title_full_unstemmed | The Effect of Spanwise Folding on the Aerodynamic Performance of a Passively Deformed Flapping Wing |
| title_short | The Effect of Spanwise Folding on the Aerodynamic Performance of a Passively Deformed Flapping Wing |
| title_sort | effect of spanwise folding on the aerodynamic performance of a passively deformed flapping wing |
| topic | folding motion flapping wing fluid–structure coupling unsteady panel method propulsion efficiency |
| url | https://www.mdpi.com/2313-7673/9/1/42 |
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