Origami-like creases in sheet materials for compliant mechanism design

Origami-like creases in sheet materials for compliant mechanism design
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片材上的折纸式折痕,用于合规机构设计

DOI:
10.5194/ms-4-371-2013
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发表时间:
2013
影响因子:
1.4
通讯作者:
L. Howell
L. Howell
中科院分区:
工程技术4区
文献类型:
--
作者:
K. C. Francis;J. Blanch;S. Magleby;L. Howell

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抽象的。本研究的目的是评估非纸张材料,如塑料和金属的折痕,以促进折纸为基础的顺应性机构的设计。虽然预计大多数基于折纸的设计将由替代折叠(替代折痕的间接方法)产生,但提供可能有助于在纸以外的材料中进行基于折纸的设计的更直接方法的信息是有价值的。均匀材料的平面片被认为是因为它们保持了折纸的基本原理(平坦的初始状态,低成本,容易获得)。沿着折痕的轴线沿着减小的刚度是折纸的一个使能特性。因此,基于与面板的变形相比的折痕的变形的度量使得能够基于工程材料实现在折叠纸中观察到的“铰链状”行为的能力来评估工程材料。给出了该度量的高值和低值的优点。测试结果(铰链指数,残余角,局部铰链行为和循环折痕失效)的各种金属和聚合物。这种方法和随后的调查结果提供,使折纸为基础的设计的顺应机制。
Abstract. The purpose of this research is to evaluate the creasing of non-paper sheet materials, such as plastics and metals, to facilitate origami-based compliant mechanism design. Although it is anticipated that most origami-based design will result from surrogate folds (indirect methods of replacing the crease), it is valuable to provide information that may help in more direct approaches for origami-based design in materials other than paper. Planar sheets of homogeneous material are considered as they maintain the principles fundamental to origami (flat initial state, low cost, readily available). The reduced stiffness along the axis of the crease is an enabling characteristic of origami. Hence a metric based on the deformation of the crease compared to the deformation of the panels enables engineering materials to be evaluated based on their ability to achieve the "hinge-like" behavior observed in folded paper. Advantages of both high and low values of this metric are given. Testing results (hinge indexes, residual angles, localized hinge behavior and cyclic creasing to failure) are presented for various metals and polymers. This methodology and subsequent findings are provided to enable origami-based design of compliant mechanisms.
DOI: 10.1063/1.3212896
发表时间: 2009-08-31
影响因子: 4
作者:
Bassik, Noy;Stern, George M.;Gracias, David H.
通讯作者: Gracias, David H.