摘要
本文结合雷达机械结构复杂的特点,用一种改进的自由子结构模态综合法,对某雷达的机械结构进行了动力分析,得出了一些结论。最后,用ARMA时序模型及FFT谱分析对此雷达进行了实验分析。实验分析结果与理论计算吻合较好,为复杂天线系统的结构动力性能设计提供了理论和设计依据。
The dynamic behaviour of complex radar structural system is analysed. An improved free-interface modal synthesis method is used and the special characteristic of radar mechanical structure fully considered. The modal analysis and parametric identification are carried out. The ARMA mode and FFT spectrum analysis are used for these objects. The experimental results are in good agreement with the theoretical ones. Some conclusions are drawn which are useful to the analysis and design of complex radar structure.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
1989年第4期32-38,共7页
Journal of Xidian University
关键词
雷达
结构动力分析
模态综合法
radar
dynamic structural analysis
modal synthesis method
