星载环形天线非对称索网系统等刚度设计方法  

Symmetrical stiffness design for asymmetrical net system of space loop antenna

作　　者：王辉[1] 宋燕平[1] 马小飞[1] 

机构地区：[1]西安空间无线电技术研究所,陕西西安710100

出　　处：《空间结构》2016年第2期59-63,共5页Spatial Structures

基　　金：国家自然科学基金重大项目(11290154);国家自然科学基金项目(U1537213)

摘　　要：大口径环形天线反射器由于受到收拢高度及展开臂长度的限制,有时很难实现主、副索网构型上的完全对称设计,因而造成了反射器正、反向放置变形上的差异,为反射器型面调试带来了困难.提出一种非对称索网系统主、副网等刚度设计方法,通过该设计可以使得索网系统的正反向变形相等,实现反射器正反两种状态下的型面平均后等效在轨无重力型面的目的,为大口径环形天线地面调整和在轨型面预测提供了便利.The symmetry of front net and rear net of large loop antenna is difficult to be achieved due to restricted dimensions,such as stowed height and length of the deployed arm etc.Differences between the front net and the rear net bring much inconvenience in the procedure of surface adjustment.This paper provides a method to achieve a symmetrical stiffness design for an asymmetrical net system of loop antenna.Through this design,surface of the antenna measured in the state of cup-up and cup-down can be averaged to predict the shape of net system on orbit.The method proposed in this paper provides great convenience in the surface adjustment on ground and the on-orbit reflector shape prediction.

关 键 词：环形可展开天线 非对称索网系统 等刚度设计 

分 类 号：TN823.15[电子电信—信息与通信工程] TU351[建筑科学—结构工程]