受吉村折纸启发的可展开管状结构的刚度建模和动力学分析

IF 6.6 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-09-09 DOI:10.1016/j.tws.2025.113966

Boyan Chang , Jiahao Cui , Shuai Mo , Dong Liang , Guoguang Jin , Yuhan Gao

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引用次数: 0

摘要

折纸已被用来建立可展开的结构，通过折叠和展开沿折痕。这些结构在部署过程中通常是灵活的，导致不稳定状态，无法在加载下保持其部署状态。本文提取了一种受吉村折纸启发的管状桁架，建立了刚度模型，揭示了载荷与变形之间的关系。分析预测结果与ANSYS仿真结果吻合较好，为设计可展开管状结构提供了一组最优几何参数，该结构可从支承状态沿两种不同路径塌陷。选择一条高刚度路径承载重物，选择另一条零刚度路径实现可展开运动功能。通过实验和基于拉格朗日方程的动态仿真，分析论证了该结构的可选择性展开性和可折叠性。理论和实验结果均表明，该结构在无专用锁紧装置的支撑状态下，不仅显著提高了承载能力，而且减小了展开所需的驱动力。这项工作的原理可以用来创建多功能的折纸式可展开结构，可以找到许多应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Stiffness modelling and dynamics analysis of a deployable tubular structure inspired by Yoshimura origami

Origami has been utilized to build deployable structures through folding and unfolding along the creases. These structures are usually flexible during the deploying process, leading to an unstable state that can not maintain its deployed state under loading. In this paper, a tubular truss inspired by Yoshimura origami is extracted and stiffness model is established to reveal the relationship between the load and the deformation. The analytical predictions show good agreement with ANSYS simulations and a set of optimal geometric parameters are obtained for designing the deployable tubular structure, which can be collapsed along two different paths from the supporting state. One path with high stiffness is selected to bear heavy load and another path with zero stiffness is chosen to achieve the function of deployable motion. The selective deployability and collapsibility are analyzed and demonstrated by experiments and dynamic simulations based on Lagrange equation. Both theoretical and experimental results demonstrate that the proposed structure not only significantly enhances the load-bearing capacity in the supporting state without dedicated locking devices but also reduces the driving force required for deployment. The principle in this work can be utilized to create versatile origami-inspired deployable structures that can find many applications.

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.