Microb Technology/2007/Mecanic motors

De Wikidroids.

This small page has for goal to explain how to choose a motor with motor's datasheet.

Calculating Maximum Velocity

What you need :

* reduction ratio. (ex : r = 14:1 in our case)
* Wheels diameter. (D = 7.5 cm in our case)
* considere you are at max voltage (v = 12 V in our case. Is maximum voltage for our motor)
* Motor 0perating speed max (Ne_max = 8100 rpm) In rotation per minute without reduction.

The maximum velocity with reductor is :

* MaxVel = r / Ne_max

And in Rotation per Second (more adapted scale for us) :

* MaxVel = r /(Ne_max * 60)
* MaxVel = 8100 / (14 * 60) = 9.64 rps 

So we have :

* MaxV = MaxVel * PI * D 

Next :

* MaxV = 9.64 * PI * 0.075
* MaxV = 2.27 m.s-1

Calculating Max Load

To be done . . .