光学精密工程2023，Vol.31Issue(22)：3305-3317,13.DOI:10.37188/OPE.20233122.3305
可展开固体反射面天线折展机构设计及分析
Design and analysis of deployment mechanism for solid surface deployment antenna
摘要
Abstract
This study designs a deployment mechanism based on the Bennett mechanism to address the synchronization and reliability issues of solid surface deployment antennas(SSDAs)caused by indepen-dent rotation around two axes.First,a position determination algorithm for the antenna petal based on a particle swarm optimization algorithm is proposed.Combined with the axis-angle theorem,the parameters of uniaxial deployment are obtained,and the deployment mechanism based on the Bennett mechanism is designed.Furthermore,the design scheme of the petal frame is proposed with topology optimization meth-ods based on the motion trajectories of adjacent petals.The analysis results show that the design frame can reduce the reflector deformation by 62.5%and enhance the fundamental frequency by four times,which fully proves the effectiveness of the frame design.Using a 10 m aperture SSDA as an example,the deploy-ment mechanism is established,whereas the kinematic and dynamic parameters during the deployment pro-cess are analyzed.The deployment mechanism is further derived into a non-overconstrained mechanism by introducing negative kinematic pairs.The results show that the deployment process of SSDA is stable and reliable;the package ratio reaches 0.384.The research methods and conclusions in this study provide technical references for the design of SSDA.关键词
固面可展开天线/单自由度折展/背架设计/消极运动副Key words
solid surface deployable antenna/uniaxial deployment/frame design/negative kinematic pair引用本文复制引用
李昊,马小飞,火统龙,李欢笑,吴迪..可展开固体反射面天线折展机构设计及分析[J].光学精密工程,2023,31(22):3305-3317,13.基金项目
国家自然科学基金面上项目资助(No.52175242) （No.52175242）
