CAREER: Large, Deployable and Adaptable Structures Through Origami Engineering

这个教师早期职业发展（CAREER）补助金将探索折纸工程，使大规模的土木工程结构，移动和重新配置有效，可预测，安全。这项研究将使运动和重新配置的土木结构与最小量的力量。折纸工程原理将用于生成传统的结构和架构（例如梁，柱，表面），但具有独特的重新配置和适应性。这些大规模的可部署和可适应的结构将从根本上改善建筑方法，建筑运营，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。该计划的教育工作将建立自己动手（DIY）学习，教授技术内容，并通过参与者制作和探索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刚度到零刚度的折纸工程力学，以及在土木工程结构中实现折纸工程原理所需的基础研究。本研究的主要目的为：（1）建立一个以力学为基础的分析框架，结合内部应力、体力、弹性变形、动力学和其他行为来模拟这种新型折纸;（2）探索几何形状、预应力、平衡力和所需的低/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）识别折纸几何形状，用于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现实的加载场景;（4）制造，仪器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。首要的重点将是利用低到零的刚度特性，以使大型结构的有效和稳定的驱动。该项目将推进折纸启发的可部署和可重构系统领域，并有助于使其在土木工程和建筑应用中可行。该奖项反映了NSF的法定使命，并通过使用基金会的智力价值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.