Keywords

lamina emergent torsion, LET joints, origami-based, mechanical engineering, load displacement

Abstract

Lamina emergent torsion (LET) joints for use in origami-based applications enables folding of panels. Placing LET joints in series and parallel (formulating LET arrays) opens the design space to provide for tunable stiffness characteristics in other directions while maintaining the ability to fold. Analytical equations characterizing the elastic load-displacement for general serial-parallel formulations of LET arrays for three degrees of freedom are presented: rotation about the desired axis, in-plane rotation, and extension/compression. These equations enable the design of LET arrays for a variety of applications, including origami-based mechanisms. These general equations are verified using finite element analysis and, to show variability of the LET array design space, several verification plots over a range of parameters are provided.

Original Publication Citation

Pehrson, N.A., Bilancia, P., Magleby, S.P., Howell, L.L, “Load-Displacement Characterization in Three Degrees of Freedom for General Lamina Emergent Torsion Arrays,” ASME Journal of Mechanical Design, Vol. 142, 093301-1 to 093301-11, doi:10.1115/1.4046072, 2020. Attached.

Document Type

Peer-Reviewed Article

Publication Date

2023-03-06

Publisher

ASME Journal of Mechanical Design

Language

English

College

Ira A. Fulton College of Engineering

Department

Mechanical Engineering

University Standing at Time of Publication

Full Professor

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