Recent content by SALMAN22

Can you derive it?

Can anyone explain why the moment of inertia for a tubular column in that textbook is like so? (take a look at the attachments). It should be (I = MR^2), as far as I know.

If I was required to select a water pump for either domestic use or industrial, what are the consideration that I should take care of while choosing? How can I select a suitable pump according to height? What power should be implemented? Anyway, a general question would be "What is a reference...

@Baluncore I think this is a great analysis This can be solved by supporting the horizontal shaft by equally-distant vertical pillars- using journal bearings, of course. Should this be done also with the horizontal shaft, because i think this will be a bit complex in our case. And if it is...

Here is the application to be implemented. It is a solar tracker, and i need to choose the proper motors for it, and still confused how the vertical load will affect motor's torque- I'm talking about the vertical-shaft motor. And as our friend @Baluncore here said, Is it better done with a...

Can you please explain why the weight does not affect the whole operation of rotation. Are you saying it is a matter of bearing drag? How to calculate it in this case? and what is its significance. Thank you.

It is the right-hand rule. I remember now. Thank you

The motor is to rotate in constant speed- no need for acceleration-.

Can you please give more explanation, using the current example. I mean where is the horizontal force contribution here ?

Cylinder

I don't need to directly choose a motor, i need the formulas to calculate it. The issue is that I'm confused between the vertical and horizontal load- i.e. in this case the load is vertical (weight) and the torque to rotate the gear is horizontal. How to combine these two forces in one...

If I'm to choose a motor to suit a vertical load (torque)-see the attached picture for more illustration-. What is the criteria should i follow? After i have done the math for the weight of the object to be rotated, the torque to rotate the load is to be horizontal, and i only have the weight...