Origami-inspired sacrificial joints for folding compliant mechanisms

Journal Article (2019)
Authors

Todd G. Nelson (University of Southern Indiana)

Alex Avila (Brigham Young University)

Larry L. Howell (Brigham Young University)

JL Herder (TU Delft - Precision and Microsystems Engineering)

Davood Farhadi Machekposhti (TU Delft - Mechatronic Systems Design)

Department
Precision and Microsystems Engineering
More Info
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Publication Year
2019
Language
English
Department
Precision and Microsystems Engineering
Volume number
140
Pages (from-to)
194-210
DOI:
https://doi.org/10.1016/j.mechmachtheory.2019.05.023

Abstract

Folding is a manufacturing method which can create complex 3D geometries from flat materials and can be particularly useful in cost-sensitive or planar-limited fabrication applications. This paper introduces compliant mechanisms that employ folding techniques from origami to evolve from a flat material to deployed state. We present origami-inspired sacrificial joints, joints which have mobility during assembly of the mechanism but are rigid in their final position, to create regions of high and low stiffness and the proper alignment of compliant flexures in folded mechanisms. To demonstrate the method we fold steel sheet to create some well-known and complex compliant mechanisms.

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