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  • Users: cdavidso
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  1. cdavidso

    ISO Std for FFT Spectra Vibration, and Bearing Fault Analysis

    Hello All, I am looking for an ISO Std for FFT Spectra Vibration, and Bearing Fault Analysis. I am familiar with the ISO Stds for overall vibration level measurement and acceptance levels. But am looking for one that covers FFT (frequency domain). I did some searches on the ISO site, and...
  2. cdavidso

    Resonant Frequencies in Pump Operating Range - How Far to Stay Away

    Hello All, I am interested in hearing resoning for the minimum range to stay away from resonant frequencies in a pump's operating range. For some context, the pumps I am interested in are vertically mounted centrifugal pumps on the order of 900 HP, used to pump water (in a wastewater...

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