×
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

ANSYS keypoints rotation.

ANSYS keypoints rotation.

ANSYS keypoints rotation.

(OP)
Hi, Im working on a truss analysis project where I am trying to model a basic crane arm truss structure similar to this one:
 http://www1.istockphoto.com/file_thumbview_approve/590654/2/istockphoto_590654_crane.jpg

I plan to setup the keypoints and links as if the crane arm were perfectly horizontal since this makes the keypoint coordinates much simpler, and then rotate the entire truss to the correct angle.

However I don't know how to rotate the truss by a specified angle about the origin. I would appreciate it if someone here could help me figure this out.

Thanks,
- Fuge.

RE: ANSYS keypoints rotation.

Fuge,
This isn't too difficult to do.  Try this:

csys, !specify coord sys

kgen  !use imove=1 to move existing kp's

Another command you may find useful is the ktran command for copying/moving a pattern into another coordinate system.

Hope this helps.

-Brian

RE: ANSYS keypoints rotation.

(OP)
Thanks Brian,

I found a way to work around my problem. I just modeled the truss as a sketch in Solidworks (which is really easy to do using simple constraints) and then exported the sketch to ANSYS ... and then asked ANSYS to give me the XYZ coords of all the keypoints that I was interested in.

Its a really crude way of doing it... but it's good enough for what I'm doing with ANSYS.

I'll try your way soon so that I can learn to do it the proper way.

Thanks for your help again,
- Fuge.

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