×
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

Difference between ANSYS-calculated amplitude and user-calculated amplitude in harmonic solution

Difference between ANSYS-calculated amplitude and user-calculated amplitude in harmonic solution

Difference between ANSYS-calculated amplitude and user-calculated amplitude in harmonic solution

(OP)
Hi all! I hope someone can help me with this weird problem:

I am running a harmonic analysis with piezoelectric elements. In the post-processor I am reading the electric flux z-component for a number of nodes (all of which are corner nodes). I am interested in the amplitude of the electric flux. I try two different ways of getting the amplitude:

1. I read it out directly using: set,1,j,,ampl

2. I read the real and imaginary parts using: set,1,j,,real and set,1,j,,imag and then combine them mathematically (squareroot of sum of squares).

In both cases the actual readout of the electric flux is done by: *get,elec_flux,node,nodenumber,d,z. The weird part is that both methods yield exactly the same value (as expected) for about two thirds of the nodes that I probe. But for the other one third of the nodes the two methods are off by a factor of 3 to 42.

Has anyone ever experienced anything like that? What am I doing wrong?

Any advice is highly appreciated! Thank you!

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