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

这项NSERC联盟国际催化剂赠款提议卡尔加里大学和苏黎世联邦理工学院之间的合作，将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。这种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增材制造技术，ETH苏黎世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。拟议工作的新奇在于可以通过增材制造生产的新型轻质网格结构架构，并将为结构工程师打开前所未有的设计空间，基本上创建了一类新的轻质结构和相关的结构模型。 开发的数值模型将减少昂贵的实验工作量所需的优化结构的性能指标，包括刚度，强度，重量和包装体积。将使用实验测量来验证模型，并将根据计算模型得出的优化设计建造物理演示器。这项研究以加拿大在卫星技术方面的丰富历史为基础，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。 该项目预计将为新结构和增材制造方法提供数据和科学证据，这将有助于降低潜在工业合作伙伴采用该技术的风险。 该技术针对加拿大的卫星部门，该部门占加拿大55亿美元航天工业的主要份额，该项目将培训HQP材料工程，先进制造，结构力学的重要技术技能，并通过培养沟通，领导力和EDI方面的专业技能，为加拿大高科技劳动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.