Collaborative Research: Uncovering the Dynamics and Functionality of Origami Structures and Materials

合作研究：揭示折纸结构和材料的动力学和功能

• 批准号: 1634545
• 负责人: Noel Perkins
• 金额: $ 36.02万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2020-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1634545&HistoricalAwards=false
• 关键词: Collaborative; Research; Uncovering; Dynamics; Functionality; Collaborative; Research; Uncovering; Dynamics; Functionality

Origami is the ancient art of folding paper into decorative shapes and geometries. Over the last several decades, it evolved and became a design framework for many engineering and architecture applications. Examples include deployable space structures, kinetic buildings, self-folding robots, surgery devices, and advanced materials. Origami folding so far has been considered as a static process. People typically focus on its design and geometry, or internal actuation mechanisms that makes the folding autonomous. This award supports a collaborative project that will investigate the fundamental dynamic characteristics of origami folding. In particular, the research will explore how to harness the extraordinary properties of origami for applications like vibration isolation at low frequency, recoverable impact absorption, and impulsive actuation. Furthermore, the research will produce design tools that can generate sophisticated folding patterns and assign material properties that are suitable for a wide variety of dynamic performance requirements. The results of this project will become the building blocks for the next generation of air, marine, and land vehicles, intelligent machines and robots, or smart infrastructures, enhancing their functionality, safety and sustainability. The findings will thus advance the aerospace, civil, mechanical, robotics and many other industries. Education and broadening participation plans will focus on student learning and community outreach at various levels and on the enhancement diversity through inclusion in the research activities of members of underrepresented minorities in science and engineering.This research will, for the first time, rigorously investigate the dynamic characteristics of origami folding and develop its corresponding engineering potentials. Preliminary studies have discovered that origami with generic crease patterns exhibits many attractive properties via folding, such as zero/negative stiffness, pressure dependent multi-stability, and piece-wise stiffness jump. Such surprisingly rich properties and the corresponding dynamic responses will be analyzed in detail based on an equivalent truss-frame model, which transforms the continuous origami structure into a finite degree of freedom system. The truss frame model would also become the basis of a comprehensive synthesis tool that incorporates crease perturbation and optimization, so that the origami can be customized for prescribed dynamic performances. This synthesis tool will bridge the currently separated branches of studies: the mathematical theories of origami design/folding and the engineering of origami based applications. Overall, the new modeling, analysis and synthesis tools for origami dynamics will create a significant intellectual leap and build a strong foundation for many future related research and development efforts.

折纸是将纸折叠成装饰形状和几何形状的古老艺术。 在过去的几十年中，它不断发展并成为许多工程和建筑应用程序的设计框架。 例子包括可部署的空间结构，动力学建筑物，自我折叠机器人，手术设备和高级材料。 到目前为止，折纸折叠已被视为静态过程。 人们通常专注于其设计和几何形状，或使折叠自主的内部驱动机制。 该奖项支持一个协作项目，该项目将调查折纸折叠的基本动态特征。 特别是，该研究将探讨如何利用折纸的非凡特性，用于在低频下振动隔离，可回收的撞击吸收和冲动性致动。 此外，该研究将生成设计工具，可以生成复杂的折叠模式，并为适合各种动态性能要求的材料属性分配材料属性。 该项目的结果将成为下一代空气，海洋和陆地车辆，智能机器和机器人或智能基础设施的基础，从而增强了它们的功能，安全性和可持续性。因此，这些发现将推进航空航天，民用，机械，机器人技术和许多其他行业。教育和扩大参与计划将集中在不同级别的学生学习和社区宣传上，以及通过纳入科学和工程领域的人为少数群体不足的研究活动，从而增强多样性。这项研究将首次严格研究野生折叠的动态特征，并开发其相应的工程潜力。 初步研究发现，具有通用折痕图案的折纸通过折叠表现出许多有吸引力的特性，例如零/负刚度，依赖压力的多稳定性和零件刚度跳跃。 这种令人惊讶的丰富特性和相应的动态响应将根据等效的桁架框模型进行详细分析，该模型将连续的折纸结构转换为有限的自由度系统。 桁架框架模型还将成为综合折痕扰动和优化的综合合成工具的基础，以便可以为规定的动态性能定制折纸。 该合成工具将桥接当前分离的研究分支：折纸设计/折叠的数学理论以及基于折纸的应用程序的工程。 总体而言，折纸动力学的新建模，分析和合成工具将为许多与未来相关的研究和开发工作创造重要的智力飞跃，并为许多相关的研究和开发工作奠定了坚实的基础。