基于能量守恒的周边桁架式可展开天线展开驱动索力分析  

Analysis of Driving Force for AstroMesh Antenna Based on the Principal of Conservation of Energy

作　　者：李娜[1] Li Na(No.39 Research Institute of CETC,Xi'an 710065,China)

机构地区：[1]中国电子科技集团公司第39研究所,西安710065

出　　处：《测控与通信》2021年第1期57-62,共6页

摘　　要：本文针对周边桁架式可展开天线,考虑了索网、摩擦等非线性因素对天线展开过程的影响,依据能量守恒原理推导了天线展开过程中驱动索力关于展开角度的表达式。本文以2 m周边桁架式天线为例,计算得到天线展开过程中的驱动索力变化曲线,结果表明,驱动索力随天线的展开呈现“先增大后减小”的趋势,可为天线展开过程控制设计提供依据,驱动索力的峰值则可为电机选型提供参考。Considering the effects of cable-net,friction and other nonlinear factors,the expression of driving force for deployment is deduced according to energy conservation for AstroMesh antenna which takes the deployment angle as the independent variable.Then the curve of the driving force for 2 m-diameter antenna is calculated.Results present a first increase and then decrease trend with the deployment of antenna.The conclusions provide reference for control design of deployment.And the peak value of the drive force could provide parameters for selection of motor.

关 键 词：周边桁架式可展开天线 能量守恒 展开角度 驱动索力 

分 类 号：TN8[电子电信—信息与通信工程]