Structural modelling and optimization of multistable grid structures for the development of deployable composite booms

NSERC联盟国际催化剂赠款计划与卡尔加里大学和苏黎世理工大学合作，开发一种新型的轻质多稳定纤维增强聚合物复合材料结构，用于可展开的吊杆应用。这一合作关系将利用两个机构的互补专业知识，卡尔加里大学提供新颖的专利添加剂制造技术，苏黎世理工大学利用其在分析和数值模型开发方面的专业知识探索潜在的设计空间。拟议工作的新颖性在于新的轻质格子结构体系结构，可以通过添加制造来生产，并将为结构工程师打开前所未有的设计空间，本质上创造了一种新的轻质结构和相关结构模型。开发的数值模型将减少优化结构所需的昂贵实验工作量，性能指标包括刚度、强度、重量和填料体积。将使用实验测量来验证模型，并将基于计算模型的优化设计建造物理演示器。这项研究建立在加拿大丰富的卫星技术历史基础上，旨在通过创新和国际合作保持该国作为全球领导者的地位。该项目预计将为新的结构和添加剂制造方法产生数据和科学证据，这将有助于降低潜在工业合作伙伴将这项技术投入应用的风险。这项技术的目标是加拿大的卫星部门，该部门占加拿大55亿美元航天产业的主要份额，该项目将培训HQP材料工程、先进制造、结构力学等重要技术技能，并通过培养通信、领导力和EDI方面的专业技能，为他们在加拿大高科技劳动力中的有影响力的职业生涯做好准备。

This NSERC Alliance International Catalyst Grant proposes a collaboration between the University of Calgary and ETH Zurich in which a new class of lightweight multi-stable fibre-reinforced polymer composite structures will be developed for deployable boom applications. This partnership will utilize the complimentary expertise of the two institutions, with the University of Calgary providing novel and patented additive manufacturing technology and ETH Zurich exploring the potential design space using their expertise in analytical and numerical model development. The novelty of the proposed work lies in the new lightweight latticed structural architectures that can be produced via additive manufacturing and will open never-before achievable design spaces to structural engineers, essentially creating a new class of lightweight structures and associated structural models. The developed numerical models will reduce the amount of costly experimental work required to optimize a structure for performance indicators including stiffness, strength, weight, and packing volume. Experimental measurements will be used to validate the models, and a physical demonstrator will be built based on an optimized design resulting from the computational models. This research builds upon Canada's rich history in satellite technologies and is designed to maintain the country's position as a global leader through innovation and international collaboration. The project is expected to generate data and scientific evidence for the new structures and additive manufacturing approach that will help de-risk the adoption of this technology by potential industrial partners into application. This technology targets Canada's satellite sector, which comprises the major share of Canada's $5.5 billion space industry and the project will train HQP in important technical skills of materials engineering, advanced manufacturing, structural mechanics, and prepare them for impactful careers in Canada's high technology workforce by fostering both professional skills in communication, leadership, and EDI.