Question on Meshing

[anmorgan]

I've been doing some FEA here recently in NX Nastran 5.0 and have been learning some things about meshing, but don't really have a huge grasp of dos and don'ts.

Therefore I am wondering if there are any tutorials or any threads about this?

Because I am having troubles with getting some models to mesh properly and faces are failing. These are pre-made models, that I really can't modify much.

Any info will help thanks.

 

[potrero]

what program are you using to do your meshing?

 

[anmorgan]

It's the Unigraphics NX 5.0 with Nastran 6.0 software (noticed I didn't state it right at first). I'm not sure if the meshing software has its own name, but it is "embedded" in the Advanced Simulation of Unigraphics. I've gotten a little better and had some help from a colleague, but further understanding would be good.

I was looking for a more general approach, like what type of meshing should be used for what type of objects. I understand now the smaller the meshing, the better the analysis, but slower the solving.

 

[BlasMolero]

Dear Anmorgan,
Actually we are at NX AdvSim 7.0 & NX Nastran 7.0, then since NX 5.0 release things have changed a lot, current version 7.0 is really powerful, and next one 7.5 -due for May,2010- will be another history ...
Well, to learn to use NX 5.0 Advanced Simulation FEA package my advise is to download & install from the SIEMENS FTP the program CAST 5.0: Computer Aided Selft Training, you have many tutorials & examples where you will learn how to mesh, how to apply loads & bcs, solve & interpret FEA results, good luck!.
Best regards,
Blas.