CAREER: Large, Deployable and Adaptable Structures Through Origami Engineering

这项学院早期职业发展(Career)补助金将探索折纸工程，以使大型土木工程结构能够高效、可预测和安全地移动和重新配置。这项研究将使土木结构能够以最小的力进行运动和重新配置。折纸工程原理将用于生成传统的结构和建筑(如梁、柱、表面)，但具有重新配置和适应性的独特特性。这些大规模可展开和可适应的结构将从根本上改进施工方法、建筑操作、结构的再利用和基础设施的适应性。这些基本概念还将允许在空间结构、机器人、生物医学设备、超材料等方面进行创新。该计划的教育努力将建立自己动手(DIY)学习，教授技术内容，并通过吸引参与者制作和探索他们自己的折纸结构来鼓励工程兴趣。该项目将积极吸引底特律低收入社区的高中生、本科生研究人员、研究生和不同年龄段的儿童。该项目的目标是了解低到零刚度的折纸工程的力学，以及在土木工程结构中实现折纸工程原理所必需的基础研究。研究的目标是：(1)建立一个基于力学的分析框架，结合内应力、体力、弹性变形、动力学和其他行为来模拟新型折纸；(2)探索几何、预应力、平衡和期望的低/零刚度特性之间的关系，并制定一种优化方法来定制这些特性；(3)确定折纸几何在工程和建筑中的功能应用。通过与实践建筑师的合作，这些几何形状将被优化和系统地探索，以适应现实的加载场景；以及(4)制造、测量和实验测试新的折纸结构，并探索与大规模实施相关的实际问题。最主要的焦点将是利用低到零的刚度特性，以便能够对大型结构进行高效和稳定的驱动。该项目将推进以折纸为灵感的可部署和可重新配置系统的领域，并有助于使其适用于土木工程和建筑应用。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

This Faculty Early Career Development (CAREER) grant will explore origami engineering to enable large-scale civil engineering structures that move and reconfigure efficiently, predictably, and safely. This research will enable motion and reconfiguration of a civil structure with a minimal amount of force. The origami engineering principles will be used to generate traditional structures and architectures (e.g. beams, columns, surfaces), but with unique properties for reconfiguration and adaptability. These large-scale deployable and adaptable structures will result in fundamental improvements for construction methods, building operations, re-use of structures and adaptivity of infrastructure. The fundamental concepts will also allow innovations in space structures, robotics, biomedical devices, metamaterials, and more. The educational efforts of this program will establish Do-It-Yourself (DIY) learning to teach technical content and encourage engineering interest by engaging participants to make and explore their own origami structures. The project will actively engage high-school students in a low-income Detroit neighborhood, undergraduate researchers, graduate students, and children of different age groups. The goals of the project are to understand the mechanics of origami engineering with low to zero stiffness, and the fundamental research necessary to realize origami engineering principles in civil engineering structures. The research objectives are to: (1) establish a mechanics-based analytical framework that combines internal stress, body forces, elastic deformations, dynamics, and other behaviors to enable simulation of the novel origami; (2) explore the relationships between geometry, pre-stress, counter-balances and the desired low/zero stiffness characteristics, and formulate an optimization approach to tailor these properties; (3) identify origami geometries for functional applications in engineering and architecture. Through collaboration with practicing architects, these geometries will be optimized and systematically explored for realistic loading scenarios; and (4) fabricate, instrument, and experimentally test the new origami structures, and explore practical issues related to large-scale implementations. The overarching focus will be to harness low to zero stiffness characteristics in order to enable efficient and stable actuation for large structures. This project will advance the field of origami-inspired deployable and reconfigurable systems and contribute to making them feasible for civil engineering and architectural applications.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.