tempCompSurfSegment

Omer Faruk GUMUS_21691

Hello,

Once any radioss model is exported to solve the model in Radioss solver,  then reimport the model back, I can see that  the .rad input deck file created a new component named '^tempCompSurfSegment' . Why exactly that kind of component is added into the input deck?  In additionally, if this component is removed from input deck, radioss solver would give an interface error ?

I would be appreciated if I knew more about this component created in each time. 

Thanks in advance.

Simon Križnik

Hi,

 

this '^tempCompSurfSegment' could be a renamed '^faces' component (created by tool>faces panel) from the original file. 

If Radioss solver gives an interface error upon removal of such component then probably some of the elements in such component were directly (by element) or indirectly (by contact surface) referenced in some interface.

 

The same applies to '^tempCompLineSegment' renamed from '^edges' component (created by tool>edges panel).

Altair Forum User

HI,

The temp collector is created as a base and since it will not be exported to the input file, this will not affect the solver or results. 

 

The reason why you are getting this ^comp is because of the order in which the nodes of the *set_segment are listed.

Not sure if you are familiar with this set segment thing basically it is just a list of nodes defining the face of the elements.
You have a quad element with node 1 2 3 4. to identify the face of this set segment you may have a set segment with nodes 1 2 3 4 or 2 3 4 1 or 3 4 1 2 or finally 4 1 2 3. all of them pointing in the same direction (right-hand rule). To speed us the import of Dyna\radioss file we check only the first combination of node ordering 1 2 3 4 if HM does not find any element with that order we create a temp component that will not be exported but just used for 'base' to create the segment. Similarly.. for solid elements.

In this case, you had a solid element with a segment not oriented the way HM was expecting

Omer Faruk GUMUS_21691

Thank your kindly answers @Ivan and @Prakash Pagadala.

However I see your explanation above, I would just to know why I'm in trouble with the model when I import a radioss model inside and delete the ^temp comp from the model. I guess the ^temp component's surfaces connect directly to contact surfaces. So, deleting the ^temp comp from model effect the contact surfaces , then solving it after export is not possible.
Do you have any suggestion to get rid of this issue? 

Altair Forum User

Maybe the ^temp is linked to any sets of contact elements/nodes?

 

If you don't have any problem, retain the component.