×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

ROBOT ARM Torque Calculation

ROBOT ARM Torque Calculation

ROBOT ARM Torque Calculation

(OP)
Hello All,
I am designing my first robot.

I have calculated the torque based on this formula T=Fxd +n....., But i have a doubt. can i select the gearbox based on this torque? I think this torque is required torque to rotate the arm from zero rpm. But my robot arm is moving in 15Rpm. How can i calculate the torque needed to stop the arm while moving in 15Rpm?

Many Thanks,
Justin.

RE: ROBOT ARM Torque Calculation

Gearbox forces for robots are controlled by the required accelerations. Speeds mean very little.

15 RPM is meaningless without knowing how fast you want to ramp to that speed, and how fast you want to ramp back to zero.

RE: ROBOT ARM Torque Calculation

Torque required is "peak torque" which is torque required to accelerate / decelerate to/from speeds, plus all the other torques needed for friction, gravity, etc.

It all starts with Torque = (mass moment of inertia) x (angular acceleration) [T = Jα]

Angular Acceleration = (Change in Angular Velocity) / (Change in Time) [α ≈ ΔV/ΔT]

TygerDawg
Blue Technik LLC
Virtuoso Robotics Engineering
www.bluetechnik.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources