Structural, Deployable Folds — Design and Simulation of Biological Inspired Folded Structures

Baerlecken, Daniel; Gentry, Russell; Swarts, Matthew; Wonoto, Nixon

doi:10.1260/1478-0771.12.3.243

Cited by 3 publications

(2 citation statements)

References 10 publications

(10 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To attain this, keeping the system lightweight would be advantageous. Even though stiffness scales up exponentially with an increase in material thickness, experiments translating origami paper models to PETG have proved to be successful 60 ; and advances in material science, especially in polymers and thermoplastic carbon fiber composites, offer potential in producing large, light, and durable origami-based elements. 61 The laminated method used in the fabrication of Crease could be translated into the design of kinetic architectural components.…”

Section: Methods and Resultsmentioning

confidence: 99%

CREASE: Synchronous gait by minimizing actuation through folded geometry

Mesa

Mhatre

Aukes

2020

International Journal of Architectural Computing

View full text Add to dashboard Cite

The Age of the Fourth Industrial Revolution promises the integration and synergy of disciplines to arrive at meaningful and comprehensive solutions. As computation and fabrication methods become pervasive, they present platforms for communication. Value exists in diverse disciplines bringing their approach to a common conversation, proposing demands, and potentials in response to entrenched challenges. Robotics has expanded recently as computational analysis, and digital fabrication methods are more accurate and reliable. Advances in functional microelectromechanical components have resulted in the design of new robots presenting alternatives to traditional ambulatory robots. However, most examples are the result of intense computational analysis necessitating engineering expertise and specialized manufacturing. Accessible fabrication methods like laminate techniques propose alternatives to new robot morphologies. However, most examples remain overly actuated without harnessing the full potential of folds for locomotion. Our research explores the connection between origami structures and kinematics for the generation of an ambulatory robot presenting efficient, controlled, and graceful gait with minimal use of components. Our robot ‘Crease’ achieves complex gait by harnessing kinematic origami chains rather than relying on motors. Minimal actuation activates the folds to produce variations in walk and direction. Integrating a physical iterative process with computational analysis, several prototypes were generated at different scales, including untethered ones with sensing and steering that could map their environment. Furthering the dialogue between disciplines, this research contributes not only to the field of robotics but also architectural design, where efficiency, adjustability, and ease of fabrication are critical in designing kinetic elements.

show abstract

Section: Methods and Resultsmentioning

confidence: 99%

CREASE: Synchronous gait by minimizing actuation through folded geometry

Mesa

Mhatre

Aukes

2020

International Journal of Architectural Computing

View full text Add to dashboard Cite

show abstract

“…Self-folding is an extensive phenomenon generated in various natural systems, including opening and closing of flowers (Mao et al, 2016), insect’s wings that is, earwigs (Baerlecken et al, 2014), hornbeam leaves, and maple leaves (Baerlecken et al, 2014). Perceiving the mechanisms folding initiates the fascinating opportunities in both biological view and applications view.…”

Section: Introductionmentioning

confidence: 99%

Programmable self-folding of trilayer and bilayer-hinge structures by time-dependent swelling of tough hydrogels

Shojaeifard

Niroumandi

Baghani

2022

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

Inspired by nature, active materials are used to developed complex 3D configurations considering their specific characteristics. One of the shape-shifting methods in smart structures is utilizing programmable materials in self-folding structures. Hydrogels due to their biocompatibility, controllable functionalities, large reversible deformations, and their sensitivity to environmental stimuli are vital candidates to be used in self-folding structures. To avoid the mechanical weakness of conventional hydrogels, in this paper polyampholyte tough hydrogel is inspected considering a transient electro-chemo-mechanical constitutive model combining a visco-hyperelastic model with Nernst-Planck and Poisson’s equations. After calibrating the material parameters and verifying the accuracy of the model and its implementation, we present two approaches in order to generate self-folding hydrogel-based structures: polymer structure with bilayer hinges and trilayer structure composed of a hydrogel film sandwiched between two elastomer layers. Next, diverse factors are examined in the self-folding of smart structures which conforms with experimental test data, including hydrogel swelling, structure thickness and stiffness, bilayer configuration and composition, the width of the bilayer as well as opening width in trilayer and layers thickness. Finally, several transient self-folding of 2D flat patterns which turn into 3D complex configurations are scrutinized such as the closure of box, pyramids, and flower-shaper gripper.

show abstract

Folding creases through bending

Al-Mulla

Buehler

2015

Nature Mater

View full text Add to dashboard Cite

Structural, Deployable Folds — Design and Simulation of Biological Inspired Folded Structures

Cited by 3 publications

References 10 publications

CREASE: Synchronous gait by minimizing actuation through folded geometry

CREASE: Synchronous gait by minimizing actuation through folded geometry

Programmable self-folding of trilayer and bilayer-hinge structures by time-dependent swelling of tough hydrogels

Folding creases through bending

Contact Info

Product

Resources

About