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  1. aftabhanifee

    critical speed for vertical shaft

    Hello, I have a problem as shown in attachment,here a vertical shaft is powered by a motor. at the top of the shaft a circular disk is fixed weigh approximately 3 kg. the shaft runs at 3000rpm and motor power is 0.75 hp. Iam intrested to know the critical speeds within the working rpm range.(...
  2. aftabhanifee

    Critical sped for vertical shaft

    Hello, I have a problem as shown in attachment,here a vertical shaft is powered by a motor. at the top of the shaft a circular disk is fixed weigh approximately 3 kg. the shaft runs at 3000rpm and motor power is 0.75 hp. Iam intrested to know the critical speeds within the working rpm range.(...

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