摘要
对转子的模态进行分析,基于有限元理论建立了多孔质气静压轴承-转子系统的动力学模型。运用Matlab软件仿真,得到了考虑陀螺与阻尼以及不考虑陀螺与阻尼两种情况的模态振型。在实验验证时,借助Data Physics 730动态信号分析仪进行数据采集,将采集的数据导入用ME’scopeVES软件建立的转子三维模型中进行分析。仿真和实验对比得出,弹性支撑下后置T型转子仿真分析与实验验证的数值相差在6%以内。
For the modal analysis of a rotor, a dynamic model of porous aerostatic bearing-rotor system is established based on the theory of finite element. The modal vibration models, in which the gyroscopic and damping influence is considered and is not considered, are gained respectively through simulation analysis by u- sing Matlab software. The data collected by Data Physics 730 dynamic signal analysis instrument are put in the three-dimensional model of the rotor established by ME＇scopeVES to analyze in experimental verification. Ac- cording to the results of simulation compared with experiment, numerical value of theoretical analysis and ex- perimental verification are similar within 6 ~ under elastic support with the rear rotor of T type.
出处
《中原工学院学报》
CAS
2016年第4期23-27,共5页
Journal of Zhongyuan University of Technology
基金
国家自然科学基金项目(51475485)
关键词
转子
模态分析
有限元
阻尼
rotor
modal analysis
finite element
damping
