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Any 1 can show the formula or equation of the polar moment of inertia, J of a motor? View All

6 years ago - 8 months left to answer. - 1 response - Report Abuse
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The polar moment of inertia [1] is a integral function of the Volume, radius for the rotational section, and the density of the object.

Since a Motor rotor typically made out of multiple materials with different densities you must calculated the determine the sum of the individual PMI's

Niel Leon

6 years ago

Source: [1]

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