Origami-inspired sacrificial joints for folding compliant mechanisms

Nelson, Todd G.; Avila, Alex; Howell, Larry L.; Herder, Just L.; Machekposhti, Davood Farhadi

doi:10.1016/j.mechmachtheory.2019.05.023

Cited by 21 publications

(10 citation statements)

References 40 publications

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“…Some hybrid compliant mechanisms based on the straight beams were synthesized with this method. Nelson [16] employed folding techniques from origami to develop a hybrid compliant mechanism with multi degrees of freedom. The complex compliant mechanism is difficult to made.…”

Section: Introductionmentioning

confidence: 99%

Design and Modeling of a Curved Beam Compliant Mechanism with Six Degrees of Freedom

et al. 2022

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Compliant mechanisms are widely used in cutting-edge scientific and technological fields such as precision engineering, micro-/nano-manipulation, or microelectronics. Hence, the demand for multi-degree-of-freedom compliant mechanisms has increased sharply. The structure of compliant mechanisms becomes increasingly complex with the increase of degrees of freedom. Here, a compliant mechanism with six degrees of freedom is proposed based on curved beams. The compliant mechanism has the advantages of simple structure and multi-degree-of-freedom. Using the isogeometric analysis method, a model of the mechanism is constructed. Static analysis show that six degrees of freedom can be generated. The prototype of the mechanism is developed by 3D printing. A loading test in six degrees of freedom is carried out. The output and input have high linear relations and the structure has low inter-directional coupling. We trust that this study provides a pioneering step towards the design of compliant mechanisms based on curved beam elements.

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Section: Introductionmentioning

confidence: 99%

Design and Modeling of a Curved Beam Compliant Mechanism with Six Degrees of Freedom

et al. 2022

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“…Apart from this feature, other benefits of origami-inspired designs are low cost, monolithic, and spatial systems with accessible fabrication processes in comparison to the conventional mechanisms. [14][15][16] Finite element methods (FEM) have been widely used in the simulation of soft robotics to forecast the behavior of deformable parts. 17 In various soft robotics applications, FE analyses of joint parts are conducted by defining compliant materials as linear elastic.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Finite element modeling of an origami-inspired delta mechanism with flexible components and joints

Samankan

Fard

Berkkurt

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Delta mechanism is one of the well-known parallel mechanisms used in robotic applications. In this study, the trajectory behavior of a novel Delta mechanism, which was designed and fabricated using layer-by-layer origami method, is investigated utilizing the finite element method (FEM). The mechanism was modeled with the dimensions of the actual fabricated mechanism. The mechanism consists of four different materials where properties of two materials are extracted experimentally via the tensile testing process. The accuracy of our model was compared to the finite element simulations and the results indicated that the mechanism follows the given trajectory within 0.05 normalized root-mean-square (RMS) error with respect to the kinematic model. The impact of the fabrication and instrumentation errors on the trajectory was further analyzed using FEM simulations and the contribution of each factor on the error was categorized. This validated numerical model can be used in the future to accurately simulate the mechanics of origami-inspired mechanisms and to design new mechanisms.

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“…Origami, an ancient art inherited from the orient, has been re-purposed as modern engineering applied in aerospace [ 20 ], stents [ 21 , 22 ], solar panels [ 23 ], haptic devices [ 24 ], and robots [ 25 , 26 , 27 , 28 ]. The properties of one-fold hinge have been investigated [ 29 ], and well-designed multiple folds become joints with several degree-of-freedoms [ 30 ]. Origamizer [ 31 ] is an algorithm that allows every polyhedral complex to be folded from a sufficiently large paper.…”

Section: Introductionmentioning

confidence: 99%

Origami Inspired Laser Scanner

Hung²

2022

Micromachines

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Diverse origami techniques and various selections of paper open new possibilities to create micromachines. By folding paper, this article proposes an original approach to build laser scanners, which manipulate optical beams precisely and realize valuable applications, including laser marking, cutting, engraving, and displaying. A prototype has been designed, implemented, actuated, and controlled. The experimental results demonstrate that the angular stroke, repeatability, full scale settling time, and resonant frequency are 20°, 0.849 m°, 330 ms, 68 Hz, respectively. Its durability, more than 35 million cycles, shows the potential to carry out serious tasks.

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Origami-inspired sacrificial joints for folding compliant mechanisms

Cited by 21 publications

References 40 publications

Design and Modeling of a Curved Beam Compliant Mechanism with Six Degrees of Freedom

Design and Modeling of a Curved Beam Compliant Mechanism with Six Degrees of Freedom

Finite element modeling of an origami-inspired delta mechanism with flexible components and joints

Origami Inspired Laser Scanner

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