本文介绍了利用表面振动信号进行柴油机内部故障诊断的基本方法。
This paper introduces the basic method for diagnosing interior faults of diesel engine by the use of surface vibration signals.
现场实测结果表明，利用柴油机表面振动信号来诊断柴油机主轴瓦异常磨损故障是可行的。
The real detecting result shows that it is feasible to use the engine surface vibration signal to diagnose main bearing shell abnormal wear trouble.
分析了应用共振解调原理，利用轴承外表面振动信号对机器进行不解体故障诊断是可行的。
Analysis the demodulated resonance technique (DRT), the result shows that it is effective and feasible to diagnosis faults of bearing un-disassembly using surface vibration signal.
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