Journal ArticleDOI
Folding of thick origami through regionally sandwiched compliant sheets
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In this article, a regional sandwiching of compliant sheets is used to create mountain-valley assignments for each fold about a vertex, constraining motion to a single branch of folding.Abstract:
\n The regional sandwiching of compliant sheets (ReCS) technique presented in this work creates flat-foldable, rigid-foldable, and self-deploying thick origami-based mechanisms. Regional sandwiching of the compliant sheet is used to create mountain-valley assignments for each fold about a vertex, constraining motion to a single branch of folding. Strain energy in deflected flexible members is used to enable self-deployment. This work presents the methods to design origami-based mechanisms using the ReCS technique, including volume trimming at the vertex of the compliant sheet and of the panels used in the sandwich. Three physical models, a simple single fold mechanism, a degree-four vertex mechanism, and a full tessellation, are presented to demonstrate the ReCS technique using acrylic panels with spring and low-carbon steels. Consideration is given to the risk of yielding of the compliant sheet due to parasitic motion with possible mitigation of yielding by decreasing the thickness of the sheet.read more
Citations
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Journal ArticleDOI
Origami Antennas
Stavros V. Georgakopoulos,Constantinos L. Zekios,Abdul Sattar-Kaddour,Muhammad Hamza,Akash Biswas,Brooklyn Clark,Collin Ynchausti,Larry L. Howell,Spencer P. Magleby,Robert J. Lang +9 more
TL;DR: Foldable and physically reconfigurable antennas, particularly origami-based antennas, can provide new capabilities for the aforementioned applications, including satellite communications, UAVs, CubeSats as well as airborne and spaceborne communication systems as discussed by the authors.
Journal ArticleDOI
A Review On Origami Simulations: From Kinematics, to Mechanics, Towards Multi-Physics
TL;DR: In this article , the authors present the formulations of different origami simulations, analyzes their strengths and weaknesses, and discusses the potential application scenarios of different simulation techniques, including kinematics-based simulations, mechanics-based simulation, and multi-physics based simulations.
Journal ArticleDOI
Geometry-Based Thick Origami Simulation
TL;DR: In this article, a geometric simulation for thick origami is presented, where actuation, constraints, and assignment of mountain and valley folds in origami are also incorporated into the geometric formulation.
Journal ArticleDOI
Thickness-utilizing deployable hard stops for origami-based design applications
TL;DR: This work outlines how a ThUDS can maintain foldability while improving stability and utilizing thickness, and presents design concepts and models of thickness-utilizing deployable hard stops which can be incorporated into origami-based design applications to provide stability in specific fold states.
Journal ArticleDOI
Optimizing geometry for EM performance to design volume-efficient Miura-Ori for reflectarray antennas
Hunter T. Pruett,Abdul-Sattar Kaddour,Stavros V. Georgakopoulos,Larry L. Howell,Spencer P. Magleby +4 more
TL;DR: In this paper , the authors developed metrics and relationships that enable an optimization problem seeking to maximize surface area subject to the constraints of an allotted cuboid volume and a deployed aspect ratio of one.
References
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Journal ArticleDOI
A method for building self-folding machines
TL;DR: This origami-inspired robot can fold itself in 4 minutes and walk away without human intervention, demonstrating the potential both for complex self-folding machines and autonomous, self-controlled assembly.
Journal ArticleDOI
Programmable matter by folding
Elliot W. Hawkes,Byoungkwon An,Nadia M. Benbernou,Hiroto Tanaka,Sangbae Kim,Erik D. Demaine,Daniela Rus,Robert J. Wood +7 more
TL;DR: This paper considers achieving programmable sheets that can form themselves in different shapes autonomously by folding, and has developed a scalable end-to-end planning and fabrication process.
Journal ArticleDOI
Accommodating Thickness in Origami-Based Deployable Arrays
Shannon A. Zirbel,Robert J. Lang,Mark Thomson,Deborah A. Sigel,Phillip Walkemeyer,Brian P. Trease,Spencer P. Magleby,Larry L. Howell +7 more
TL;DR: In this paper, the authors describe a mathematical model for modifying the pattern to accommodate material thickness in the context of the design, modeling, and testing of a deployable system inspired by an origami six-sided flasher model.
Journal ArticleDOI
Programming Reversibly Self‐Folding Origami with Micropatterned Photo‐Crosslinkable Polymer Trilayers
Jun-Hee Na,Arthur A. Evans,Jinhye Bae,Maria C. Chiappelli,Christian D. Santangelo,Robert J. Lang,Thomas C. Hull,Ryan C. Hayward +7 more
TL;DR: Self-folding microscale origami patterns are demonstrated in polymer films with control over mountain/valley assignments and fold angles using trilayers of photo-crosslinkable copolymers with a temperature-sensitive hydrogel as the middle layer.
Journal ArticleDOI
Origami multistability: from single vertices to metasheets.
TL;DR: It is shown how to program the stability features of a single vertex into a periodic fold tessellation, and the resulting metasheets provide a previously unanticipated functionality-tunable and switchable shape and size via multistability.