挠性枢轴式天线定向机构是一种结构新颖、性能优良的卫星天线定向机构。本文用有限元法对其关键元件——挠性枢轴做了静态结构分析,讨论了矩形薄板单元在枢轴有限元分析中应用的方法,并给出了计算结果。本文提供的方法和程序可用于挠性轴的结构设计。 Flexible pivot antenna orientation mechanism is a novel structure, excellent performance satellite antenna orientation mechanism. In this paper, the static structure of its pivotal element, the flexible pivot, is analyzed by the finite element method. The application of the rectangular thin plate element in the pivotal finite element analysis is discussed and the calculation results are given. The methods and procedures provided herein can be used for the structural design of flexible shafts.