catia v5r19- analysis of knots

[boris\]

Bye to all,

with the analysis module I made a static calculation to determine the behavior of an object.
I have seen that there is the possibility through the "information" command to highlight the behavior of the selected node (motorments, reactions, general caratts). I wondered if, as with aansys or similar, I could have the characteristics given the number of the node. in this way I could compare the old analyses using the same knot. For example, if I know the old behavior of Node 3745, how does this behave in the new analysis? ? ?

I hope I've been quite clear. . .
thanks in advance.

 

[stef_design]

I have seen that there is the possibility through the "information" command to highlight the behavior of the selected node (motorments, reactions, general caratts). I wondered if, as with aansys or similar, I could have the characteristics given the number of the node.

hi, as I'm a little inexperienced in this field, I wanted to ask why you analyze the behavior of a single knot and not of an area of the component?
I guess you're analyzing a component, let's say this is a cube. Why are you interested in a cube edge and not in the area close to the edge?
Thank you:

 

[boris\]

Hi.

Of course, I care about the total behavior of the structure. but for what I am studying I have to compare knots, to see their behavior after some changes made on the new model.

 

[stef_design]

Hi.
Of course, I care about the total behavior of the structure. but for what I am studying I have to compare knots, to see their behavior after some changes made on the new model.

Okay, I just wanted to figure out when the need to see the behavior of knots arises. that is, for what types of analysis?
Hi.

 

[boris\]

Hi.

Specifically, I have to compare the behavior of an object to varying loads. In particular I already have an analysis previously done and I have to compare it with this new one that I am compiling. as I said if various load conditions, you will have a different model resound.

 

[stef_design]

Hi.

Specifically, I have to compare the behavior of an object to varying loads. In particular I already have an analysis previously done and I have to compare it with this new one that I am compiling. as I said if various load conditions, you will have a different model resound.

ok, but the load is applied on a knot?...for this you look at behavior in a certain knot?

 

[Matteo]

with infusion (neinastran) you can do (actually I think it is possible with all h-elements)

 

[boris\]

thank you matteo, I don't know well infusion (neinastran), my problem emerged in the first post, it was solved by ansys analysis, but for the project I was working on, they asked me to perform the analysis with the chain package.
stef_design, it is not a question of the application of the load on the node, in order to make it short and clear, I expressly ask myself to evaluate the behavior of the node in question regarding the one already rated. definitely also the whole structure, obvious. I wonder about the first post, how do I say "what happened to the x node after the analysis?", is there a command? That's my problem, not the type of analysis or boundary conditions.

 

[MacGG]

Hello boris,

To do this, you must first have a point in the location that interests you. or if the knot you are interested in is at the top, you already have it. If you don't. you probably have to put a point on a edge or on a surface. so when you run the mesh, you have to pass the mesg on that point (there is the option somewhere, I don't remember, to do this).

so when you have a point (both it also a vertex), you can create a sensor on that point, which gives you all the outputs you want. id does not manage them directly but through geometry (points in this case).

other story is to use eventually simdesigner, which is md nastran in catia.

Hi.

♪