Origami-inspired design is an emerging field capable of producing compact and efficient designs. Compliant hinges are proposed as a way to replicate the folding motion of paper when using nonpaper materials. Compliant hinges function as surrogate folds and can be defined as localized reduction of stiffness. The purpose of this paper is to organize and evaluate selected surrogate folds for use in compliant mechanisms. These surrogate folds are characterized based on the desired motion as well as motions typically considered parasitic. Additionally, the surrogate folds' ability to rotate through large deflections and their stability of center of rotation are evaluated. Existing surrogate folds are reviewed and closed-form solutions presented. A diagram intended as a straightforward design guide is presented. Areas for potential development in the surrogate fold design space are noted.
Evaluating Compliant Hinge Geometries for Origami-Inspired Mechanisms
Manuscript received September 26, 2014; final manuscript received December 2, 2014; published online December 31, 2014. Assoc. Editor: Carl Nelson.
Delimont, I. L., Magleby, S. P., and Howell, L. L. (February 1, 2015). "Evaluating Compliant Hinge Geometries for Origami-Inspired Mechanisms." ASME. J. Mechanisms Robotics. February 2015; 7(1): 011009. https://doi.org/10.1115/1.4029325
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