摘要
将现代谱估计中的AR模型应用于包含广泛频率成分的典型的滚动轴承振动信号分析 ,采用Marple算法 ,FPE判阶准则 ,以样本长度的均方根作为定阶上界计算AR模型参数 ,求得AR谱。通过AR谱与经典谱的实际对比分析 ,验证了所建AR模型的正确性和对滚动轴承振动信号分析的适用性 。
AR model was used to process the typical vibration signals of rolling bearings by means of Marple algorithm and FPE order selection criteria and the best order can be reached between 1～ N . AR frequency spectra based on the given AR model was compared with that of the classical one and the results show some obvious advantages.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2004年第3期210-213,共4页
China Mechanical Engineering
关键词
AR模型
滚动轴承振动
功率谱估计
定阶准则
AR model
bearing vibration
power spectral estimation
order selection criteria
