哈尔滨商业大学学报（自然科学版）2012，Vol.28Issue(3)：365-368,378,5.
POD方法在转子系统降维中的应用
Application of POD method to reduce dimensions of rotor system
于海 1陈予恕1
作者信息
- 1. 哈尔滨工业大学航天学院,哈尔滨150001
- 折叠
摘要
Abstract
The POD (Proper Orthogonal Decomposition) method was applied in a rotorbeating system.For a simple rotor - bearing system with pedestal looseness at one support,considering that a chaotic orbit visits many unstable periodic orbits and hence should contain more information about the system than a single periodic orbit,after applying the POD method,the POMs( Proper Orthogonal Modes)were obtained from the chaotic signals.Then four -degree- of- freedom reduction model was obtained by projecting the system on these POMs.The reduced model was validated using qualitative mean ( including comparisons of the phase portraits and the orbits of shaft center and the occurrence of the bifurcations).The results confirm the validity of the POD method.关键词
转子/POD方法/降维Key words
rotor/ POD method/ dimension reduction分类
数理科学引用本文复制引用
于海,陈予恕..POD方法在转子系统降维中的应用[J].哈尔滨商业大学学报（自然科学版）,2012,28(3):365-368,378,5.
