0
votes
0answers
191 views

Torque required to rotate Drum [closed]

What Torque will require to rotate a Drum about horizontal axis XX. Drum is filled with industrial Oil. Weight of filled drum is $W=300 kg$. Length of Drum $(L)=900mm$ and Diameter of Drum is ...
0
votes
0answers
137 views

Torque required to rotate sand mixer [closed]

the given data is- Mixer having one impeller(rotor) rotating in horizontal plane about vertical axis. capacity of mixer to design $C = 250kg$ rotor dia. $D = 45" = 1143mm$ friction coefficient ...
0
votes
0answers
213 views

How to decide velocity profile for two stepper motor in robot driving

A robot has 2 parallel driving wheel. I don't know the friction of the ground surface. However, I can set the acceleration, starting velocity, ending velocity. The velocity profile has to be ...
4
votes
3answers
2k views

How do I calculate DC motor speed for a given load?

Suppose I have a robot of a given mass, and I'm choosing between 2 different wheels and 2 different motors to put on it. For each wheel I have the diameter, and for each motor I know the stall torque ...
1
vote
3answers
5k views

What is the difference between a moment and a couple?

In mechanical engineering, the torque due to a couple is given by $\tau = P\times d$, where $\tau$ is the resulting couple, $P~$ is one of the force vectors in the couple and $d$ is the arm of the ...