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: 1633952
• 负责人: Suyi Li
• 金额: $ 19.26万
• 依托单位: Clemson University
• 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 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1633952&HistoricalAwards=false
• 关键词: 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.

折纸是一种将纸折叠成装饰性形状和几何形状的古老艺术。 在过去的几十年里，它发展并成为许多工程和建筑应用的设计框架。 例子包括可展开的空间结构，动力建筑，自折叠机器人，手术设备和先进材料。 折纸到目前为止一直被认为是一个静态的过程。 人们通常关注它的设计和几何形状，或者使折叠自主的内部驱动机制。 该奖项支持一个合作项目，将调查折纸折叠的基本动态特性。 特别是，该研究将探索如何利用折纸的非凡特性，如低频振动隔离，可恢复的冲击吸收和脉冲驱动等应用。 此外，该研究将产生设计工具，可以生成复杂的折叠模式，并分配适合各种动态性能要求的材料属性。 该项目的成果将成为下一代空中、海上和陆地车辆、智能机器和机器人或智能基础设施的基石，增强其功能性、安全性和可持续性。因此，这些发现将推动航空航天，民用，机械，机器人和许多其他行业的发展。教育和扩大参与计划将侧重于各级学生学习和社区外联，并通过将科学和工程领域代表性不足的少数民族成员纳入研究活动来增强多样性。这项研究将首次严格调查折纸的动态特性，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、压力依赖的多稳定性和分段刚度跳跃。 这种令人惊讶的丰富的属性和相应的动态响应将详细分析的基础上的等效桁架框架模型，它转换成一个有限的自由度系统的连续折纸结构。 桁架模型还将成为综合合成工具的基础，该工具结合了折痕扰动和优化，以便可以根据规定的动态性能定制折纸。 这个合成工具将弥合目前分离的研究分支：折纸设计/折叠的数学理论和基于折纸的应用程序的工程。 总的来说，新的折纸动力学建模、分析和合成工具将创造一个重大的智力飞跃，并为未来的许多相关研究和开发工作奠定坚实的基础。

项目成果

Exploiting the Asymmetric Energy Barrier in Multi-Stable Origami to Enable Mechanical Diode Behavior in Compression

利用多稳态折纸中的不对称能量势垒来实现机械二极管的压缩行为

• DOI: 10.1115/detc2019-97420
• 发表时间: 2019
• 期刊: ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
• 作者: Baharisangari, Nasim;Li, Suyi
• 通讯作者: Li, Suyi

Harnessing the anisotropic multistability of stacked-origami mechanical metamaterials for effective modulus programming

• DOI: 10.1177/1045389x18781040
• 发表时间: 2018-06
• 期刊: Journal of Intelligent Material Systems and Structures
• 影响因子: 2.7
• 作者: Sattam Sengupta;Suyi Li

Fabrication and Testing of Kirigami-Inspired Multi-Stable Composites

受剪纸启发的多稳定复合材料的制造和测试

• DOI: 10.1115/smasis2018-7981
• 发表时间: 2018
• 期刊: Adaptive Structures and Intelligent Systems
• 作者: Lele, Aditya;Myers, Oliver J.;and Li, Suyi
• 通讯作者: and Li, Suyi

Analyzing the bi-directional dynamic morphing of a bi-stable water-bomb base origami

• DOI: 10.1117/12.2512301
• 发表时间: 2019-03
• 作者: Sahand Sadeghi;Suyi Li

The Effect of Nonlinear Springs in Jumping Mechanisms

非线性弹簧在跳跃机构中的作用

• DOI: 10.1115/dscc2018-8969
• 发表时间: 2018
• 期刊: USA
• 作者: Sadeghi, Sahand;Betsill, Blake D.;Tallapragada, Phanindra;and Li, Suyi
• 通讯作者: and Li, Suyi