Automotive Motor Selection for Roller: Diameter 300mm, Length 1350mm, Inertia 3.95 KG.M

[Sathish 07]

i need to select the motor for a roller of Diameter 300mm , length 1350mm

having inertia 3.95 KG.M ,Which needs to accelerate from 0 to 600MPM at 20 sec . Assuming existing web tension acting on the roller 20 N/M.
THANK YOU

 

[phinds]

And what research have you done so far? What have you found out?

 

[Dr.D]

There are some problems with your units. For the tension, you give 20 N/m, but tension is a force and should simply be in N. For the MMOI, you give 3.95 kg-m, but the units should be kg-m^2.

Is it your intention to formulate this whole question on a a per unit length basis?

Also, what is the tension difference across the roller?

 

[Sathish 07]

Thank you for the response.
I am trying to find out the selection of motor .to rotate the roller .
Considering web tension, bearing drag , co efficient of traction and wrap angle .

Thank you .

 

[russ_watters]

Thank you for the response.
I am trying to find out the selection of motor .to rotate the roller .
Considering web tension, bearing drag , co efficient of traction and wrap angle .

Thank you .

You haven't even asked any questions, much less shown any effort to figure anything out. You need to do that.

 

[Dr.D]

Do you want the roller to provide the web tension, or do you want the web tension to drive the roller along with help from a motor? You show web tension on one side, but there is no indication of tension on the other side; what is your intention here?

 

[Sathish 07]

The roller I have is OD diameter 300mm and ID 264 mm .
From the calculations I got moment of inertia is
27.906 kg.m^2 , which has to rotate at 190 mpm

Both Upstream and down stream web tension is 20 N .

 

[russ_watters]

Thread locked for insufficient effort by the OP.