六棱柱单元可展抛物面天线结构设计

摘要

A deployable hexapod truss，driven by tension springs，is developed for space application in this paper．The most signficant feature is no mechanism to be locked during the deployment．It’s packaging ratio is shown to be good too．A large paraboloid truss antenna is designed by using the deployable hexapod truss and the details of the movable members are introduced．%本文提出了一个利用伸缩杆驱动的六棱柱展开单元，该单元可动机构数较少，展开可靠度高，结构刚度好，具有广泛的应用前景。利用伸缩杆六棱柱单元，文中设计了一大型构架式切割抛物面天线，并简要介绍了天线可展节点的细部设计。该天线的形面精度较高，质量轻，造价低。