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What are some of the most common techniques that should be used every day in a vibration analysis program?

  1. Spectrum Analysis

    Spectrum Analysis is used to help identify the normal operating frequencies of a machine. Additionally,  the defect frequencies and their characteristics can be routinely identified.

  2. Waveform Analysis

    Waveforms are one of the most overlook analysis tools. Waveforms can be used to identify fault patterns of equipment defects and help determine the severity of the defect.

  3. Trend Analysis

    Trend Analysis is a critical part of any vibration analysis or condition monitoring program. Trend analysis will help identify fault trends in equipment that may have gone unnoticed otherwise. Also, trend analysis can be used to help identify the severity and rate of progression of identified fault conditions.

  4. Band Alarming

    Carving up the entire spectral range into significant bands and setting alarms to indicate when a problem might be beginning is a good way to optimize the time of analysts and the efficiency of a vibration analysis program. This method can prevent fault conditions from being overlooked.

  5. Shock Pulse

    Shock Pulse is a way of harnessing the resonant properties of sensors to gain valuable defect information. This method can be used for early warning of bearing defects and to identify lubrication-related issues.

  6. Envelope Demodulation

    Enveloping is a generally valuable early detection method for anti-friction bearing defects and specifically very valuable for detecting such flaws in low and very low-speed equipment.

  7. Phase Analysis

    Phase analysis can be incorporated into everyday route data collection. This data can be used to distinguish between different faults that may have similar characteristics.

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, by Trent Phillips