多转子旋转机组振动频谱特征  

Spectrum analysis of vibrations on rotary machine sets with more rotors

作　　者：崔秀英[1] 杨大军[1] 

机构地区：[1]大连理工大学动力工程系

出　　处：《大连理工大学学报》1996年第2期208-211,共4页Journal of Dalian University of Technology

摘　　要：通过对大型机组振动监测及故障诊断的实践，总结出具有不同转速的多转子机组有关测点的振动频谱成分中，通常既含有该转子的转速频率成分，也含有相邻转子的频率成分．多数情况下，还含有它们各自的倍频．认识这一规律，在故障诊断中是有意义的．According to experiments of monitoring and diagnosing the large rotary machine sets with more rotors which have different speeds, the vibration spectra measured at a bearing of a rotor have the frequency component equal to the rotor speed and also have some frequency components equal to the adjacent rotor speeds. In most cases, the multiple basic frequency components also appear on the spectra. It is useful to know the regulations of the vibration spectrum characteristics for diagnosing work.

关 键 词：转子 监测 故障诊断 频谱 蒸汽透平 振动 

分 类 号：TK268.1[动力工程及工程热物理—动力机械及工程]