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원형 노치를 갖는 원통형 플렉셔 힌지의 해석

Analysis of the Cylindrical Flexure Hinges with Circular Notches

Journal of the Korean Society for Precision Engineering 2022;39(2):151-157.
Published online: February 1, 2022

1 유한대학교 메카트로닉스공학과

1 Department of Mechatronics Engineering, Yuhan University

#E-mail: jhmoon@yuhan.ac.kr, TEL: +82-2-2610-0752
• Received: October 13, 2021   • Revised: December 12, 2021   • Accepted: December 29, 2021

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Citations

Citations to this article as recorded by  Crossref logo
  • Derivation and Verification of Novel Phenomenon-based Theoretical Formulas for the Axial Compliance of Circular Flexure Hinges
    Jun-Hee Moon, Hyun-Pyo Shin
    Journal of the Korean Society for Precision Engineering.2025; 42(1): 47.     CrossRef
  • Analysis on Elliptic and Parabolic 2-DOF Flexure Hinges for Spatial Positioning Stages
    Hyun-Pyo Shin, Jun-Hee Moon
    Journal of the Korean Society for Precision Engineering.2023; 40(3): 229.     CrossRef

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Analysis of the Cylindrical Flexure Hinges with Circular Notches
J. Korean Soc. Precis. Eng.. 2022;39(2):151-157.   Published online February 1, 2022
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Analysis of the Cylindrical Flexure Hinges with Circular Notches
J. Korean Soc. Precis. Eng.. 2022;39(2):151-157.   Published online February 1, 2022
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Analysis of the Cylindrical Flexure Hinges with Circular Notches
Image Image Image Image Image Image Image Image Image
Fig. 1 Uni-directional flexure hinge
Fig. 2 Cylindrical flexure hinge (Circularly notched)
Fig. 3 Cutaway view of the cylindrical flexure hinge
Fig. 4 Results of the finite element analysis
Fig. 5 Stiffness comparison between FEM and theoretical calculation
Fig. 6 Curve fitting for FEM and theoretical calculation
Fig. 7 Results of the finite element analysis with partially circular notch (e/R = 0.5)
Fig. 8 Stiffness comparison between FEM and theoretical calculation
Fig. 9 Results of the finite element analysis with partially circular notch (e/R = 0.1)
Analysis of the Cylindrical Flexure Hinges with Circular Notches

Stiffnesses resulted from theoretical calculation

R [mm] 1 2 5 10 20
Ka [N/um] 128.4 81.6 47.7 32.7 22.8
Kb [Nm/rad] 10.86 7.36 4.54 3.19 2.24

Stiffnesses resulted from the finite element analysis

R [mm] 1 2 5 10 20
Ka [N/um] 74.5 59.8 41.5 30.4 21.8
Kb [Nm/rad] 9.01 6.72 4.38 3.16 2.23

Coefficients of the curved-fitted Eqs. (10) and (11)

Paros-Weisbord
(Simplified)
Theoretical
(Curve-fitted)
FEM
(Curve-fitted)
α 1 0.5 0.636 0.376
β 1 0.5 0.602 0.392
α 2 0.05 0.054 0.046
β 2 0.5 0.535 0.456
Table 1 Stiffnesses resulted from theoretical calculation
Table 2 Stiffnesses resulted from the finite element analysis
Table 3 Coefficients of the curved-fitted Eqs. (10) and (11)