平方解调分析在低速重载齿轮故障诊断中的应用  

Application of Square Demodulation Analysis in Fault Diagnosis of Low Speed and Heavy-duty Gear

作　　者：陈水生[1] 牛振华[1] 华伟[1] 

机构地区：[1]河南理工大学万方科技学院,河南焦作454000

出　　处：《煤矿机械》2008年第5期212-214,共3页Coal Mine Machinery

摘　　要：阐述了齿轮振动信号的调制原理,讨论了平方解调的定义及解调原理。应用平方解调分析技术对齿轮振动信号进行了幅值解调分析。工程应用研究结果表明,针对齿轮振动信号的调制现象,利用平方解调技术能从复杂的振动信号中解调出故障齿轮的调制信息,进而判断出故障齿轮的部位,是一种可靠的故障诊断方法。The modulation theory of gear vibration signal is described. The definition and demodulation principle of square demodulation analysis were discussed. Square demodulation analysis was used to demodulate the amplitude spectrum of gear vibration signal. To the modulate phenomena of gear vibration signal, the result of research shows that square demodulation analysis technique can demodulate the demodulation information of fault gear from complicated vibration signal, judging the position of fault gear. It is an effective fault diagnosis method.

关 键 词：平方解调 齿轮 故障诊断 低速重载 

分 类 号：TH165.3[机械工程—机械制造及自动化] TP306[自动化与计算机技术—计算机系统结构]