How to use surface meshing on CATiA V5 R21 (advanced meshing tools)

Simulation Generality
1

Hello, I'm new to Catia in general, and to surface in particular, and after building a structure in this module, I would have liked to have been able to carry out an analysis.

This tutorial available on linkoa http://www.lynkoa.com/sites/default/files/questions/answer/03/03/2015/analyse_catia_v5.pdf seems to explain the procedures to follow well, but I have trouble understanding several aspects of it:

- Is it necessary to create a mesh for the analysis of a surface object?

- In the call of the mesh function, which parameters are mandatory (local specifications?, simplification of the mesh, ?, ...)

- In the global parameters, how do I know what type of mesh (frontal triangle or frontal quadrangle method) and what type of elements (linear or parabolic) I am oriented?

- Does directional mesh depend on the type of materials that are used or is it another parameter that should influence this choice?

- As the meshing seems to be done on a surface, there is no consideration of the choice of material when carrying out the analysis?

 

Thank you in advance for the answers and advice you could give me, I attach to you at the end of this post different screenshots of the structure, it is a support post that should be made by welding steel tube.

Ps: I built the structure using the surface module, then I thickened the different tubes in order to obtain a new part body.

Ps2: This file is a part and not an assembly, although it has assembled surfaces.

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I think the tutorial is complete enough to understand the why and how

you have in it all the definitions of mesh and the methods to apply

55 pages to understand the CATIA mesh

Happy reading

@+ ;-)

 

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Hello, gt22, and thank you for your participation.

Yes, the tutorial is quite complete regarding the how, it explains the procedures to follow to carry out analyses, but it lacks some prerequisites concerning the part to be analysed.

For example, I don't know if the analyses take into account the connection leave?

In addition, having gaps in surface on Catia, I am not sure that the surface (pillar) that I am analyzing is correctly realized, which has a direct impact on the results of the analysis.

Ps: On the last try the analysis tells me that my abutment is good everywhere except at the connection leave where it's a disaster

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look to change the density of the  mesh in these places

Make a fine mesh at the connection area .page 12 of the tutorial

and take a good look at the mesh connections. pages 46

@+

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Hello, I had to start from scratch the structure posted previously, because it was a real hassle to do an analysis on the first version, here is the second:


So even before I start the analysis, I have doubts about the part to analyze, I don't know if I should do a global analysis of the structure, or rather go for an analysis by small parts defined beforehand?