机械故障诊断是一门起源很早的技术。有经验的维修人员凭借直接观察运行情况,倾听机械噪声,触摸机械的振动和温升,判断机械的运动状态和故障所在。但这种技巧不大容易掌握。对大型复杂设备更不能适应。目前机械故障的原因,大多数是由于对机器的动态特性考虑不周。现代的机械故障诊断技术运用各个学科的先进技术成果,研制了各种测试仪器和 Mechanical troubleshooting is a very early technology. Experienced maintenance personnel by virtue of direct observation of operating conditions, listening to mechanical noise, touch the vibration and temperature of machinery, to determine the status of machinery and fault location. But this technique is not easy to grasp. More complex to large-scale equipment can not adapt. The reason for the current mechanical failure is mostly due to poor consideration of the dynamic characteristics of the machine. Modern mechanical fault diagnosis technology using the various disciplines of advanced technological achievements, developed a variety of test equipment and