Menu

Discussion Forum

New Discussion
Filtrer

Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

extract a x-value at y=0 from a cut line 2d

Posted 29 mai 2012, 04:20 UTC−4 Version 4.2a 3 Replies

Mathias Engholm
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hello everyone.

How can i extract a x-value at y=0 in a cut line 2d?

thanks
3 Replies Last Post 29 mai 2012, 14:59 UTC−4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 29 mai 2012, 09:44 UTC−4
Hi

I'm not sure I undertand what you mean, if you define a 2D cut line you must give the equation in x,y hence you can invert it.

You can also change the plot x-Axis expression, see the line graph node tabs

--
Good luck
Ivar
Hi I'm not sure I undertand what you mean, if you define a 2D cut line you must give the equation in x,y hence you can invert it. You can also change the plot x-Axis expression, see the line graph node tabs -- Good luck Ivar
Mathias Engholm
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 29 mai 2012, 12:41 UTC−4
I am looking at the bending of a beam in 2d. I made a cut line 2d through the beam and plotting the strain as a function of the arclength. I want to find the x-value where the strain is zero. How is that possible?

thanks
I am looking at the bending of a beam in 2d. I made a cut line 2d through the beam and plotting the strain as a function of the arclength. I want to find the x-value where the strain is zero. How is that possible? thanks
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 29 mai 2012, 14:59 UTC−4
Hi

I might be making a simple problem complicated, but if you are looking for a zero of a existing variable you can express that variable^2 (squared) along your cut line and ask for the minimum with a min() operator, then the
"min(varable^2,x)" and "min(variable^2,y)" etc will give you the coordinates of the minimum.
Check the doc, search for "min(" the way to get the coordinates is explained in a few places)

At least that works for a Domain and boundary, so why not for a Cut line ?


--
Good luck
Ivar
Hi I might be making a simple problem complicated, but if you are looking for a zero of a existing variable you can express that variable^2 (squared) along your cut line and ask for the minimum with a min() operator, then the "min(varable^2,x)" and "min(variable^2,y)" etc will give you the coordinates of the minimum. Check the doc, search for "min(" the way to get the coordinates is explained in a few places) At least that works for a Domain and boundary, so why not for a Cut line ? -- Good luck Ivar

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content