Register to reply

Torque required

by vengeful
Tags: required, torque
Share this thread:
Jul1-10, 12:30 PM
P: 3
Here's my problem, I want to choose a motor to drive my load but I'm not sure about those choices as motor characteristics are given in torque. I want to know what is the MINIMUM Torque required to be able to rotate my load. I thought about T=rFsin(theta), but not sure how it would apply to my system. The gear configuration should also provide me with some extra torque, so all I want to know what would the minimum be??
Attached Thumbnails
Phys.Org News Partner Science news on
Physical constant is constant even in strong gravitational fields
Montreal VR headset team turns to crowdfunding for Totem
Researchers study vital 'on/off switches' that control when bacteria turn deadly
Jul1-10, 09:29 PM
P: 88
You have not given enough information to calculate torque or any other parameter necessary for motor selection.
Jul2-10, 12:14 AM
P: 147
What is your arrangement? This figure shows that you are only going to rotate a shaft. Aren't there pulley's and other stuff? Because more the mass is distributed along the axis more will be the starting torque required. So you should be a little specific.

Jul2-10, 02:56 AM
P: 3
Torque required

I admit reading it again, maybe I was a little vague. The extra parameters you would be talking about would be the speed that I would wan to move at? If so, that would be hard to say as I would be sending a variable PWM signal, the actual term is called Microstepping- where I simulate as close as possible to a sine wave curve, this would give me a smoother operation so the theory says. Anyway if there are other parameters, please point me in the direction, so I could get them and do any necessary calculations.

I don't think that there will be any pulleys or anything else, the vertical shaft is what will be holding my satellite receiver, and to me it seems the simplest solution to just attach the receiver dish via a bracket of some sort to the shaft that rotates.

Register to reply

Related Discussions
Torque required Mechanical Engineering 3
Torque required to power a car Mechanical Engineering 7
Torque required Classical Physics 1
Torque required to push an EV Electrical Engineering 10
Determining torque required General Engineering 1