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Slikatel

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- Hello all and thanks for viewing this, I am in need of some assistance to solve a problem to size an AC motor rotating this load (power transmission will be trough belt & pulley).

Hello all and thanks for viewing this, I am in need of some assistance to solve a problem to size an AC motor rotating this load (power transmission will be trough belt & pulley).

I have a hollow cylinder (pipe) that needs to spin 25 RPM:

- OD = 50 mm

- ID = 48 mm

- M = 200 kg

- Total length = 40m

The formula for inertia (Z-axis) i found when searching for a hollow cylinder = I = M * r^2 this gives me a solution of I = 0.1201 kg/m²

If i put this in the torque formula of T = I x angular acceleration = 0.1201 kg/m² x 2.618 rad/s2 (25RPM - 1 sec - ) = 0,3144218 Nm?

I'm stuck here :) would like to have some advice in where to search. Thanks so much for the advice.

I have a hollow cylinder (pipe) that needs to spin 25 RPM:

- OD = 50 mm

- ID = 48 mm

- M = 200 kg

- Total length = 40m

The formula for inertia (Z-axis) i found when searching for a hollow cylinder = I = M * r^2 this gives me a solution of I = 0.1201 kg/m²

If i put this in the torque formula of T = I x angular acceleration = 0.1201 kg/m² x 2.618 rad/s2 (25RPM - 1 sec - ) = 0,3144218 Nm?

I'm stuck here :) would like to have some advice in where to search. Thanks so much for the advice.