×
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

Finite Element Transient Simulation

Finite Element Transient Simulation

Finite Element Transient Simulation

(OP)
I am currently performing some transient simulations in FLUX (a finite element package released by Cedrat) with an induction motor. I have run the motor up to speed under no-load condition and everything seems to work as expected.

Now, once loading the machine with a step torque (100 Nm) by using a Transient Startup feature of FLUX I have noticed some rather strange results. I have attached two curves for you to have a look at, these are speed and Axis Torque. As you can see, there is for some reason a steady state reached and then a transient after a second or two which is then repeated along the rest of the simulation.

I have run equivalent simulations in Simulink using the built-in Asynchronous motor model built into the Simulink SimpowerSystems library, with results also attached.

Your help in this regard would be greatly appreciated if you could explain to me exactly why this is happening.

Thank you.



 

RE: Finite Element Transient Simulation

Can't see any curves. Upload files by using the attachment feature at the bottom.

corus

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