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This can be done by first defining a parameterized curve and then sweeping the cross section of the wire along the curve.

Cheers Edgar

This can be done by first defining a parameterized curve and then sweeping the cross section of the wire along the curve.

Cheers Edgar

Many thanks for your answer.

Could you please explain more specificly on how to define such parameterized curve. For example, the core I am going to wind has a outer diameter of 57.2mm, inner diameter of 26.4mm and height of 15.2mm with 50 turns.

Thanks again!

I suggest you check this in the documentation and I guess there are examples in the application library. Good luck.

The topic made me a little curious and the parameterization is not overcomplicated but not trivial as well. Check there:

http://mathworld.wolfram.com/Torus.html http://demonstrations.wolfram.com/ToroidalHelices/

There is all you need. Wolfram is frequently an excellent source for things like this.

Cheers Edgar

The topic made me a little curious and the parameterization is not overcomplicated but not trivial as well. Check there:

http://mathworld.wolfram.com/Torus.html http://demonstrations.wolfram.com/ToroidalHelices/

There is all you need. Wolfram is frequently an excellent source for things like this.

Cheers Edgar

Thank you Edgar, your suggestions are really helpful. The equation of Toroidal Helices is exactly what I need!

However, I found it difficult to define the parameter of angle to fit in the equation. It always comes up with errors.

The equation is showns as following: cos(t)(R-rcos(pi+25t)) sin(t)(R-rcos(pi+25t)) rsin(pi+25t)

How to define 't' in these equations?

Thank you!

Aoi

Aoi,

t is the parameter, running 0 ... 2pi to build up the curve. In the Comsol parametric curve the default parameter is s, don't change it to t, because this will interfere with any time dependent study.

Cheers Edgar