Regenerative Braking for a Vehicle

[cahillep]

Hey, how do you calculate the driven load inertia that you need to calculate the total system inertia. I know the motor rotor inertia is 2.872 lb/ft^2 and the Gear Ratio is 52:1 but I can't seem to figure out how to get the driven load inertia for the equation:

WK2s = WK2m + (WK2L / GR2)

Where:
WK2s = total system inertia
WK2m = motor rotor inertia
WK2L = driven load inertia
GR2 = gear ratio (defined as motor revolutions/driven load
revolutions)

Can anyone shed some light on this for me? It would be greatly appreciated.

 

[jack action]

I'm not sure if this is what you mean, but does http://hpwizard.com/rotational-inertia.html" help?