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  1. khader316

    How to calculate time for a vertical rotor to coast down - for mechanical enggs

    Skogsgurra, What do you recommend to calculate the coastdown time?
  2. khader316

    How to calculate time for a vertical rotor to coast down - for mechanical enggs

    Thank you Skogsgurra. The purpose is to know how long the battery should last to operate the DC motors that supplies the cooling oil to the bearings.
  3. khader316

    How to calculate time for a vertical rotor to coast down - for mechanical enggs

    Dear Friends, This is my first time posting something on eng-tips website. I need to know how to calculate time for a electric generator rotor to coast down from full speed to zero. I was trying to us (Torque = inertia x acceleration) correlation but this would give me an incorrect result as...

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