nastran o hyperworks

[Nastran994]

Hello everyone!! I'm a student and I'm finishing the master's degree program in aerospace engineer to the torino polytechnic. I am doing the skf thesis to study the plastic deformation of an element on a bearing!! to do this study (nonlinear analysis, contact analysis, plastic deformations) do you recommend using nastran or hyperworks? I practically have no experience with either of the software. what do you learn first? where do I find more material around the web?
thanks to all

 

[diesel701]

hi, I have no experience with nastran, but being open and used by different software you should tell us which of these you intend to use.

for hyperworks, I used for a short time the hypermesh module, which manages the pre and post processing phase. is not immediate as it can be a cad program like solidworks or as ansys mechanical if we talk about fem, but once understood how to use commands, it is very practical and fast, especially for the construction of the mesh. then once we created we used abaqus for calculation, so I can't tell you anything else about Altair software.

 

[Nastran994]

I would use the package nastran-patran

the model anyway I do it with creo, and on that I have no problem. abaqus I can find it free and is it easy to use? ?

 

[Onda]

abacus is paid, as much as nastran . I would say that the choice of software depends perhaps more on what it is best to learn, according to current work and future expectations.
natran / patran is most used in aerospace
hyperworks (hypermesh / optistruct) perhaps in the automotive field.
hypermesh is a really strong meshatore, much better than patran, but maybe for your application you don't need it.

 

[Nastran994]

with stronger meshatore what do you mean? What differences are there with nastran/patran?

 

[Onda]

nastran is a solutor, can be used with a mesh made by patran or hypermesh

hypermesh is faster, makes a better mesh. another world. comparable with msc apex,. Not with Patran. Patran is a great post. and very strong to put on the setup of the analysis: constraints, loads, etc.

 

[Nastran994]

so could I meshare with hypermesh then bring the model on patran put loads and constraints and then do the post with nastran?? ? ?

 

[Onda]

Let's say you can meshare in hypermesh, then bring the model to patran, put loads constraints. analyze in nastran and read the results again in patran.
I work like that, apart from using apex instead of hypermesh

 

[Nastran994]

Unfortunately I only have patran/nastran and hypermesh available, I was informing myself about abaqus but I don't know how to get it, so I'd rather leave it alone. then perfect thank you so much, I try to use this method

 

[Onda]

I don't think you've got at your disposal!
you need to set hypermesh with nastran preferences. then export mesh as bdf, taking care to give different properties to different parts. then from patran amounts the bdf.
but it is not said that you cannot work directly in patran, it depends a little on the model. if it's solid, shell. etc. also patran is a good meshatore, especially for solids. for hupermesh shells is stronger.

 

[Nastran994]

I'm just working with a solid, not even large. how should I set hypermesh with nastran preferences? ?

 

[Onda]

If it's just a solid, don't even go through hypermesh.
Patran mesha very well.
in any case, at the opening of hypermesh asks you with what settings to work. if for nastran, optistruct, or other.

 

[volaff]

I wanted to know how msc apex is.
I found various videos on youtube though u advice / opinion is always better!

 

[Onda]

I use it to make mesh and I feel good. a little acerbo. Sometimes you want to do things that you think are basic, and you don't find the way. has a nice composite module to define laminates. in general seems a young program that promises very well. But I use it in pairs with patran. without this, I don't know. depends very much on the type of analysis you have to do.For certain things it reduces the time compared to the very many patran alone. depends then if you have the tokens of msc one. or you have to buy it and then keep it in maintenance. In the first case it is certainly to use, in the second, depends a lot on how much you use it and the type of analysis you do. If you have big models to simplify, shell, it is very strong.

 

[volaff]

I assume that practicality is linked to constant use.
youtube aside ok material to learn you found it on the msc site?

sent by my sm-a750fn using tapatalk

 

[Onda]

the program is quite intuitive, it has itself small video of explanation of commands, and with a little practice you learn. Then sure, you can always go deeper.

 

[volaff]

I'll take this post.
Is there a guide for this software?
I wanted to try to do a simple static analysis of a beam to understand how it worked but I can't,

 

[Onda]

the software has its guide, but if you open a thread and places what does not work I can try to help you