Pyramid with rounded corners

Topics: Geometry, 4.3

Thread index  |  Previous thread  |  Next thread  |  Start a new discussion

RSS FeedRSS feed   |   Email notificationsTurn on email notifications   |   2 Replies   Last post: November 27, 2012 3:10pm UTC
Maximilian Hoerantner

Maximilian Hoerantner

November 27, 2012 2:55pm UTC

Pyramid with rounded corners

Hey all!

I am very new to COMSOL and for a research project I am now trying to model plasmonic effects on the tip of small pyramids.
The problem I have encountered is that I don't want any divergence of the effects in my model so I would like to simulate it with rounded corners of a radius I define in the parameters.
I know it is not easy to approach this as COMSOL unfortunately offers no fillet tool in 3D. Therefore I tried to do it the hard way by using spheres and cylinders but that takes for ever and needs a lot of trigonometry calculations. For that reason I wanted to ask if anyone of you has ever done that before and if you had any tipps to do it differently or if not provide a recipe to do it step by step?
That would safe me a lot of work.

Thanks for your comments,
Max

Reply  |  Reply with Quote  |  Send private message  |  Report Abuse

Jeff Hiller

Jeff Hiller
COMSOL Employee
USA
Moderator

November 27, 2012 3:02pm UTC in response to Maximilian Hoerantner

Re: Pyramid with rounded corners

Hello,
Indeed, except for special cases where 3D filleting can be mimicked with spheres and cylinders, COMSOL does not currently offer 3D filleting. In the meantime, a work-around is to use a CAD package to generate the geometry and then import it via the CAD Import Module or one of the LiveLinks.
Jeff

Reply  |  Reply with Quote  |  Send private message  |  Report Abuse

Maximilian Hoerantner

Maximilian Hoerantner

November 27, 2012 3:10pm UTC in response to Jeff Hiller

Re: Pyramid with rounded corners

Thank you, I already thought about this too. the only problem would be that I could not just change the paramters and get different pyramids for that which is a nice feature of COMSOL. But I might be patient enough to build it with spheres and cylinders!

Reply  |  Reply with Quote  |  Send private message  |  Report Abuse


Rules and guidelines