Menu

Discussion Forum

New Discussion
查找

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.

BUG in COMSOL 5.1 on parametric curve design

Posted 2020年2月16日 GMT-5 09:00 Geometry, Modeling Tools & Definitions Version 5.1 1 Reply

Miko Hakinnen
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hello forum

I think i found a bug in comsol 5.1 regarding the parametric curve functionality. Specifically, i wish to design a rounded triangle with expressions

x(t)=0.28(cos(t)+0.2cos(2t)) y(t) 0.28(sin(t)-0.2sin(2t))

with 0<t<360. The curve is sketched succesfully but when i try to converse it in solid it gives the message "Output Object is Empty". It is worth mentioning though that the parametric curve gives also the warning "Maximum relative error of parametric curve representation is "3.759914704775483E-4".

I think this is a bug. Miko

1 Reply Last Post 2020年2月16日 GMT-5 10:45
Edgar J. Kaiser Certified Consultant
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 5 years ago 2020年2月16日 GMT-5 10:45

Hi Miko,

in Comsol the trigonometric functions expect radians in the argument. So let the parameter run from 0 to 2*pi and it works.

Cheers Edgar

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Hi Miko, in Comsol the trigonometric functions expect radians in the argument. So let the parameter run from 0 to 2*pi and it works. Cheers Edgar

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