Deployable structures have received much attention in the building of large structural systems in space due to the limitations in the packaging capabilities of satellites and launch vehicles. Among various categories of deployable structures, deployable truss structures are most commonly used because of their high stiffness and strength. However, deployable truss structures typically have low packaging efficiency. To improve the packaging efficiency of deployable truss structures, this paper proposes a deployable truss structure that can be stored in a flat form. The proposed structure has a high packaging efficiency while preserving the major advantage of conventional deployable truss structures. The deployment motion is analyzed through a kinematic model, and the packaging efficiency is calculated and compared to a conventional deployable truss structure. The dynamic model of the proposed structure is derived and the deployment characteristics are investigated considering the driving force for deployment and gravity. Finally, the feasibility of the proposed structure is demonstrated with a deployment test of the prototype.

由于卫星和运载火箭的包装能力的局限性，可展开结构在太空中大型结构系统的构建中受到了广泛的关注。在各种类型的可展开结构中，可展开桁架结构由于其高刚度和强度而最常用。但是，可展开的桁架结构通常具有低包装效率。为了提高可展开式桁架结构的包装效率，本文提出了一种可展开式桁架结构，该结构可以以平面形式存储。所提出的结构具有高包装效率，同时保留了传统可展开桁架结构的主要优点。通过运动学模型分析部署运动，计算包装效率，并将其与传统的可展开桁架结构进行比较。推导了所提出结构的动力学模型，并考虑了展开的驱动力和重力，研究了展开特性。最后，通过原型的部署测试证明了所提出结构的可行性。