全谱分析技术及其在故障诊断中的应用

介绍了全谱分析技术的思路 ,研究了全谱分析技术与旋转机械回转信号之间的理论关系 ,导出了全谱分析基于复合信号的理论计算公式及简洁数值算法 ,并将其应用于实际故障诊断系统中 .研究及应用表明 :全谱分析作为对转子涡动信号综合处理的分析方法 ,能够清晰处理转子轨迹和正反进动之间的关系 ,经过简单换算也可识别转子的回转强度 ,表明全谱分析对于旋转机械故障诊断是一种非常实用的分析工具 .

Full Spectrum Analysis Technology and Its Application in Fault Diagnosis

The clew of full spectrum is introduced, the theory relationship between the full spectrum and the signals of the rotary machinery are studied, and the theory calculation formula and simple numerical method of full spectrum based on complex signals are deduced, and they are applied to the actual fault diagnosis systems. It shows that as an analysis method of comprehensively processing whirl signals of rotors, the full spectrum can clearly deal with the relationship between the orbits and positive/negative eddy. Through the simple conversion, we can also identify the turning intention of the rotors, and it is a very practical analysis tool for fault diagnosis of rotary machinery.