| Design and experiment of concentrated flexibility-based variable camber morphing wing |
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| 作者姓名： | Yuzhu LI Wenjie GE Jin ZHOU Yonghong ZHANG Donglai ZHAO Zhuo WANG Dianbiao DONG |
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| 作者单位： | 1. School of Mechanical Engineering, Northwestern Polytechnical University;2. School of Aeronautic Science and Engineering, Beihang University |
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| 基金项目： | supported by National Natural Science Foundation of China (No. 50975230)；;Natural Science Basic Research Plan in Shaanxi Province of China (No. 2017JM500)；;National Natural Science Foundation of China (No. 51375383)； |
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| 摘 要： | The morphing wing has a significant positive effect on the aerodynamic performance of the aircraft. This paper describes a leading-edge of variable camber wing with concentrated flexibility based on the geared five-bar mechanism. The driving points of morphing skin formed by the glass fibre composite sheet were optimized to make the skin deformation smooth. A geared fivebar kinematic mechanism rigidly connected to the skin was proposed to drive the leading-edge deformation. Besides, a new kind o...
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| 收稿时间： | 30 December 2020 |
Design and experiment of concentrated flexibility-based variable camber morphing wing |
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| Yuzhu LI,Wenjie GE,Jin ZHOU,Yonghong ZHANG,Donglai ZHAO,Zhuo WANG,Dianbiao DONG.Design and experiment of concentrated flexibility-based variable camber morphing wing[J].Chinese Journal of Aeronautics,2022,35(5):455-469. |
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| Institution: | 1. School of Mechanical Engineering, Northwestern Polytechnical University, Xi''an 710072, China;2. School of Aeronautic Science and Engineering, Beihang University, Beijing 100083, China |
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| Abstract: | The morphing wing has a significant positive effect on the aerodynamic performance of the aircraft. This paper describes a leading-edge of variable camber wing with concentrated flexibility based on the geared five-bar mechanism. The driving points of morphing skin formed by the glass fibre composite sheet were optimized to make the skin deformation smooth. A geared five-bar kinematic mechanism rigidly connected to the skin was proposed to drive the leading-edge deformation. Besides, a new kind of concentrated flexure hinge was designed using the pseudo-rigid-body method and applied to the joint between the rigid mechanism and the skin. Finally, the leading-edge prototypes with traditional hinges and flexure hinges were produced, respectively. The feasibility of the concentrated flexibility leading-edge was verified through the comparative experiments of ground deformation. Simultaneously, aerodynamic analysis was carried out to compare the concentrated flexure leading-edge wing with the original airfoil. |
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| Keywords: | Aircraft Concentrated flexure hinge Leading-edge Morphing wing Pseudo-rigid-body model |
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