Review of circular flexure hinge design equations and derivation of empirical formulations
Date
2008
Authors
Yong, Y.
Lu, T.
Handley, D.
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Journal article
Citation
Precision Engineering, 2008; 32(2):63-70
Statement of Responsibility
Yuen Kuan Yong, Tien-Fu Lu and Daniel C. Handley
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Abstract
This article presents the comparison of various compliance/stiffness equations of circular flexure hinges with FEA results. The limitation of these equations at different t/R (R is the radius and t is the neck thickness) ratios are revealed. Based on the limitations of these design equations, a guideline for selecting the most accurate equations for hinge design calculations are presented. In addition to the review and comparisons, general empirical stiffness equations in the x- and y-direction were formulated in this study (with errors less than 3% when compared to FEA results) for a wide range of t/R ratios (0.05≤t/R≤0.8).
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Crown copyright © 2007 Published by Elsevier Inc.