×
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

Measuring Points in FEA

Measuring Points in FEA

Measuring Points in FEA

(OP)
Hello,

I am trying to measure points on the attached design. It is a medical check valve that I applied a hydrostatic load to, in order to determine how much the valve would open up. I am attempting to estimate the area of the opening, so that I can perform further calculations.

I would like to measure the inside corners of the opening in XYZ coordinates, so that I can establish a rough estimate of the area of the valve opening. What is the best, and what is the easiest way to get those coordinates? I am using NX 7.5

RE: Measuring Points in FEA

Might help if you can get a shot from end-on.  There are image processing programs like ImageJ that might be able to do something with that.

TTFN
FAQ731-376: Eng-Tips.com Forum Policies

RE: Measuring Points in FEA

What are the chances of a mesh that coarse giving you any reasonable predictions of its actual behaviour? I think you probably need to refine your mesh a bit before you start to believe any of the results of your analysis.

Once you have a reasonable working analysis, getting the area of opening from the deflected shape should be quite straightforward - just plot the deflected coordinates as a 2D plot, and integrate under the curve to get the area.

http://julianh72.blogspot.com  

RE: Measuring Points in FEA

you know how far the corners are translating ...
so you know the distance between the four corners,
and you should be able to calculate a pretty close approximation for the opening area of each of the four triangle-ish areas ...

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