双反射面天线装配过程中同轴度误差分析  

Analysis on Coaxiality Error of Dual Reflector Antenna in Assembling Process

作　　者：孙瑞峰 朱士琦 刘兰波 苏永胜 陈敏豪 Sun Ruifeng;Zhu Shiqi;Liu Lanbo;Su Yongsheng;Chen Minhao(Shanghai Aerospace Electronic Technology Institute,Shanghai 201109)

机构地区：[1]上海航天电子技术研究所,上海201109

出　　处：《航天制造技术》2020年第5期53-56,共4页Aerospace Manufacturing Technology

摘　　要：分析双反射面天线在装配过程中主、副反射面的同轴度,利用位姿矩阵表示主、副反射面的同轴度,得到同轴度与转角的关系方程。通过Mathcad软件根据关系方程生成转角与同轴度的等值线图,确定不同位置的转角对同轴度的影响,提高了主、副反射面装配的同轴度精度,缩短了装配的周期。Analysis on the coaxiality of the primary and secondary reflective surfaces of the dual reflector antenna during the assemble process,and the coaxiality of the primary and secondary reflective surfaces is expressed by the D-H matrix,and the relationship equation between the coaxiality and the rotation angle is obtained.Mathcad software is used to generate contour maps of rotation angle and coaxiality according to the relationship equation to determine the influence of rotation angles at different positions on coaxiality,which improves the coaxiality accuracy of the main and auxiliary reflecting surface assembly and shortens the cycle of assembly.

关 键 词：双反射面天线 同轴度 尺寸链 位姿矩阵 

分 类 号：TN823.27[电子电信—信息与通信工程]