XANSYS Message: 42876 [Go back to message list]
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Subject: Re: STRUC: Superelement and cyclically symmetric structure - possible?
Author: Michael Magin
Date: 2002-10-21 04:40:00

Thank you for your answer,
I should have been more precise in my previous post.
Although the Ansys manual (ch. 3.14) displays only one basic sector,
I found it possible to build a model as described in my previous
post. I should have added that the model consists of one driver and
three drivens, 120 ø apart (a planetary gear), so I modeled only a
120ø sector of the driver and one (complete) driven, entirely made
of Solid73. The results are fine, an EXPAND gives me a view of the
complete driver with 3 drivens.
Now I'd like to replace the drivens by Superelements (Matrix50), but
Ansys aborts the analysis with the mentioned error
message:"Superelement file nnn ... .sub is not available".

Michael Magin

TU Darmstadt
FB 16 - Maschinenbau
Petersenstraáe 30
Darmstadt
Germany

--- In xansys@y..., "marco_perucchi" wrote:

> A cyclically symmetric modal analysis is done with a basic sector
and
> there is nothing outside this basic sector. Your FE model is
> therefore not cyclically symmetric.
> I do not think that cyclically symmetric modal analysis is what you
> are really looking for. You will have to model both shafts
completely.

> Marco Perucchi
> Delta JS AG
> (www.delta-js.ch)
> Zurich, Switzerland
Posts possibly associated with message #42876AuthorDateScore
42866STRUC: Superelement and cyclically symmetric structure - possible?Michael Magin2002/10/19 
42874Re: STRUC: Superelement and cyclically symmetric structure - possible?Marco Perucchi2002/10/21 
42876Re: STRUC: Superelement and cyclically symmetric structure - possible?Michael Magin2002/10/21 
42879Re: STRUC: Superelement and cyclically symmetric structure - possible?Marco Perucchi2002/10/21