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Volume 10
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10.3390/aerospace10070636
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Article

Theoretical Stiffness Modeling and Application Research of a Novel Stacked Flexure Hinge

by
Yonghong Zhang
1,
Chengmin Wang
1,
Shuangquan Tang
2,
You Jiang
1,
Hong Chen
1 and
Wenjie Ge
1,*
1
School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
2
First Aircraft Design Institute of AVIC, Xi’an 710089, China
*
Author to whom correspondence should be addressed.
Aerospace 2023, 10(7), 636; https://doi.org/10.3390/aerospace10070636
Submission received: 5 June 2023 / Revised: 5 July 2023 / Accepted: 7 July 2023 / Published: 14 July 2023
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Abstract

This study investigates and designs a novel stacked hinge with low stiffness, large rotation angle, high strength, and length-adaptive functionality. Firstly, based on the large deformation theory of cantilever beams and relevant theories of leaf springs, a stiffness theoretical model for stacked flexure hinges is established. Subsequently, the stiffness theoretical model is further modified by considering the frictional force, aiming to reduce errors. Secondly, a stiffness-testing experimental platform for this flexure hinge is designed to verify the correctness of the theoretical model. Finally, the stacked flexure hinge is applied to the trailing-edge mechanism of a variable camber wing, achieving a deformation target of 15° downward bending of the wing and demonstrating good shape retention, thereby proving the feasibility of the application.
Keywords: stacked flexure hinge; large rotation angle; length-adaptive functionality; stiffness theoretical model; variable camber wing stacked flexure hinge; large rotation angle; length-adaptive functionality; stiffness theoretical model; variable camber wing

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MDPI and ACS Style

Zhang, Y.; Wang, C.; Tang, S.; Jiang, Y.; Chen, H.; Ge, W. Theoretical Stiffness Modeling and Application Research of a Novel Stacked Flexure Hinge. Aerospace 2023, 10, 636. https://doi.org/10.3390/aerospace10070636

AMA Style

Zhang Y, Wang C, Tang S, Jiang Y, Chen H, Ge W. Theoretical Stiffness Modeling and Application Research of a Novel Stacked Flexure Hinge. Aerospace. 2023; 10(7):636. https://doi.org/10.3390/aerospace10070636

Chicago/Turabian Style

Zhang, Yonghong, Chengmin Wang, Shuangquan Tang, You Jiang, Hong Chen, and Wenjie Ge. 2023. "Theoretical Stiffness Modeling and Application Research of a Novel Stacked Flexure Hinge" Aerospace 10, no. 7: 636. https://doi.org/10.3390/aerospace10070636

APA Style

Zhang, Y., Wang, C., Tang, S., Jiang, Y., Chen, H., & Ge, W. (2023). Theoretical Stiffness Modeling and Application Research of a Novel Stacked Flexure Hinge. Aerospace, 10(7), 636. https://doi.org/10.3390/aerospace10070636

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