基于模态分析的太阳翼驱动机构振动试验规范研究  

Research of Vibration Test Specification for Solar Array Driving Mechanism Based on FEM

作　　者：朱兴高[1] 陈凤熹[1] 刘庭伟[1] 栾家辉[1] 

机构地区：[1]中国航天标准化研究所,北京100071

出　　处：《煤矿机械》2017年第5期171-173,共3页Coal Mine Machinery

基　　金：国防科工局技术基础项目(JSZL2015203B030)

摘　　要：模态分析为明确太阳翼驱动机构的动态特性,找到机构的振动薄弱环节提供了一种方法。利用计算机仿真软件建立了机构的有限元模型,介绍了机构模型的建模技巧、建模过程、建模单元特性以及有限元模型的创建技巧。根据模态分析的理论对机构的有限元模型进行了约束模态分析,通过计算得出了机构前18阶模态的固有振动频率和振型,找到了机构振动的薄弱环节。The modal analysis provides a method that can identify the dynamic characteristics of the solar array driving mechanism and find the weak vibration of the mechanism. The finite element model of the mechanism is established by using computer simulation software. The modeling techniques, modeling process, modeling unit characteristics and the modeling techniques of the finite element model are introduced. Based on the theoretical basis of the modal analysis, the finite element model of the mechanism is analyzed by the constraint modal, the natural frequencies and mode shapes of the first 18 modes of the mechanism are calculated, and the weak vibration of the mechanism are found.

关 键 词：模态分析 太阳翼驱动机构 振动特性 试验规范 

分 类 号：U262.11[机械工程—车辆工程]