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一、概述一个天线系统的动力特性是天线的重要指标之一,为保证天线的指向定位能力和抗外界干扰能力,必须对天线各部分进行结构的动力特性分析。目前,天线系统的振动分析主要采用“堆聚质量法”进行简化的分析计算,主要原因在于一方面天线系统结构复杂,各部分结构差异甚大,若用有限元法,单元数势必庞大。另一
I. Overview The dynamic characteristics of an antenna system is one of the important indicators of the antenna. In order to ensure the antenna’s pointing and anti-interference ability, the dynamic characteristics of each part of the antenna must be analyzed. At present, the vibration analysis of the antenna system mainly uses the “stacking mass method” for simplified analysis and calculation. The main reason is that on the one hand, the antenna system is complicated in structure and the structure of each part is very different. If the finite element method is used, the number of units is bound to be huge. another