Learning Forum

[hakaera]

How can I draw an elliptical area in Ansys apdl with major axis 20mm and minor axis 10mm. i cannot find the right command about it

[Harshvardhan]

Hi,
Although there is no direct command to define an ellipse in APDL, there is a command that defines an area by connecting keypoints (that can be defined by user).
It might be helpful to check it out:
A (ansys.com)

I hope this helps.
Regards,
Harshvardhan

[mrife]

Hi hakaera

Please see the MAPDL Modeling and Meshing Guide, chapter 3.1 on global and local coordinate systems:

https://ansyshelp.ansys.com/public/account/secured?returnurl=/Views/Secured/corp/v242/en/ans_mod/Hlp_G_MOD3_2.html

You can create a local elliptical coordinate system.  Then circles created are really ellipses.  Alternatively you could create keypoints that follow a conic equation and then define a spline by the keypoints.  It's been quite a while since I wrote this but check out https://ansys-net.svsfem.cz/macros/para-2.mac  or go to ansys.net and search for 'rife' and you will find my few entries.  One is on creating hyperbolas, ellipses, or parabolas.

Mike