Corner-Filleted Flexure Hinges

[+] Author and Article Information
Nicolae Lobontiu, Jeffrey S. N. Paine

Dynamic Structures and Materials, LLC 205 Williamson Square, Franklin, TN 37064

Ephrahim Garcia, Michael Goldfarb

Center for Intelligent Mechatronics, Vanderbilt University, Nashville, TN 37235

J. Mech. Des 123(3), 346-352 (Oct 01, 2000) (7 pages) doi:10.1115/1.1372190 History: Received October 01, 2000
Copyright © 2001 by ASME
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Plot of non-dimensional stiffness ratio fk11=K11*/K11
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Finite element model for a corner-filleted flexure hinge
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Schematics of the experiment: (a) setup for evaluation of C12; (b) setup for evaluation of C22
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Plot of non-dimensional compliance ratios: (a) f11=C11/C11*; (b) f22=C22/C22*; (c) f33=C33/C33*
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Plot of non-dimensional compliance ratio f22=C22/C22*′
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Representative flexure hinges with main geometric parameters
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Geometry and reference axes of a generic constant-width flexure hinge
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Quarter-model of a 2D amplification mechanism; hinge #1 is subject to bending (from input and loading), tension (from input) and shearing (from loading)
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Schematic showing deformations at the free end and displacement of the theoretical rotation center
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Geometry of a corner-filleted flexure hinge



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