Mapping prior to 3D Mesh Creation

TEJAS C C

So i started to map the part in order to do 3D Meshing. But i'm not able to do mapping properly, i don't know why. Its really a tricky part. It would really be helpfull if someone could guide me in this. I'll start from scratch neatly.

                                                                                                                                                                                           Thanking You,

Jason_Craanen

Hello,

I would refer to some of the resources we have 

youtube

https://www.youtube.com/@AltairHowTo/search?query=solid mapping

Help

https://help.altair.com/hwdesktop/hwx/topics/pre_processing/meshing/meshing_solid_map_unity_c.htm

thanks

 

TEJAS C C

Jason Craanen_20442 said:

Hello,

I would refer to some of the resources we have 

youtube

https://www.youtube.com/@AltairHowTo/search?query=solid mapping

Help

https://help.altair.com/hwdesktop/hwx/topics/pre_processing/meshing/meshing_solid_map_unity_c.htm

thanks

 

IM having a time constraint, if you could please give me an idea how to do mapping of my model.

Jason_Craanen

TEJAS C C said:

IM having a time constraint, if you could please give me an idea how to do mapping of my model.

Were you able to look into the resources I sent? These will provide you with guidance.

Is this the model you are trying to map? I am not clear on what part you are having trouble with/

TEJAS C C

Jason Craanen_20442 said:

Were you able to look into the resources I sent? These will provide you with guidance.

Is this the model you are trying to map? I am not clear on what part you are having trouble with/

Hey Jason,

I had a doubt. Is it necessary to do mapping. Means can i directly do 2D mesh using quad elements and then extrude it to get 3D mesh without needing to do mapping at all?

Jason_Craanen

TEJAS C C said:

Hey Jason,

I had a doubt. Is it necessary to do mapping. Means can i directly do 2D mesh using quad elements and then extrude it to get 3D mesh without needing to do mapping at all?

Hello Tejas,

No you do not have to do mapping. It is just one of the solid mesh tools that works very well for some geometry.

You can also you the Hex Solid Tool, which has a bit more user input but isn't as restrictive.

I would look at the Along Vector tool

https://help.altair.com/hwdesktop/hwx/topics/pre_processing/meshing/meshing_hex_c.htm#meshing_hex_c

I recommend you look into taking the training as well as this topic is covered.

https://learn.altair.com/local/altair_learning_plan/plan_overview.php?id=2

Thanks

jason

 

TEJAS C C

Jason Craanen_20442 said:

Hello Tejas,

No you do not have to do mapping. It is just one of the solid mesh tools that works very well for some geometry.

You can also you the Hex Solid Tool, which has a bit more user input but isn't as restrictive.

I would look at the Along Vector tool

https://help.altair.com/hwdesktop/hwx/topics/pre_processing/meshing/meshing_hex_c.htm#meshing_hex_c

I recommend you look into taking the training as well as this topic is covered.

https://learn.altair.com/local/altair_learning_plan/plan_overview.php?id=2

Thanks

jason

 

So you are telling there's a way i can mesh using hex solid tool which doesn't need mapping ?

sorry for asking like this again. I just wanted to be sure.

I had another doubt sorry again, as my model has a plate with hole is it possible to do 2d mesh over the surface using quad elements and extrude it to get 3d mesh. i have attached the image of 2D Mesh.

TEJAS C C

TEJAS C C said:

So you are telling there's a way i can mesh using hex solid tool which doesn't need mapping ?

sorry for asking like this again. I just wanted to be sure.

I had another doubt sorry again, as my model has a plate with hole is it possible to do 2d mesh over the surface using quad elements and extrude it to get 3d mesh. i have attached the image of 2D Mesh.

I really cant thank you enough for your help

Jason_Craanen

TEJAS C C said:

I really cant thank you enough for your help

Yes, you can use the General Hex Tool .

The video below shows the new gui (which I recommend you start using), but is using the older panel workflow. This will be similar to legacy

https://www.youtube.com/watch?v=isIWoKj0Mmg

TEJAS C C

Jason Craanen_20442 said:

Yes, you can use the General Hex Tool .

The video below shows the new gui (which I recommend you start using), but is using the older panel workflow. This will be similar to legacy

https://www.youtube.com/watch?v=isIWoKj0Mmg

So i can extrude from existing 2D mesh to get 3D mesh using General Hex Tool

without mapping. am i correct?

Jason_Craanen

TEJAS C C said:

So i can extrude from existing 2D mesh to get 3D mesh using General Hex Tool

without mapping. am i correct?

Yes, please refer to the material I have sent to you as this will answer your question.

TEJAS C C

Jason Craanen_20442 said:

Yes, please refer to the material I have sent to you as this will answer your question.

Hello,

It seems it will be really difficult to do 3D Mesh of the bolt and nut. So i'm thinking of using bolt connector tool of hypermesh instead to create using RBE3 elements. Its possible to do this after 3D Meshing of plates right?

and also i need to assign friction forces between obtained bolt and existing plate. Will it be possible?

Jason_Craanen

TEJAS C C said:

Hello,

It seems it will be really difficult to do 3D Mesh of the bolt and nut. So i'm thinking of using bolt connector tool of hypermesh instead to create using RBE3 elements. Its possible to do this after 3D Meshing of plates right?

and also i need to assign friction forces between obtained bolt and existing plate. Will it be possible?

You could defeature the threads to hex mesh the bolt.

Or use tetmesh.

Or connectors works as well.

Please explore the resources I sent earlier, as these have information on connectors as well.

https://www.youtube.com/@AltairHowTo/search?query=connector

I am not sure what you mean by assign friction forces?

Pretension? Contact?

There are a number of videos and tutorials on pretension as well.

https://www.youtube.com/@AltairHowTo/search?query=pretension

TEJAS C C

Jason Craanen_20442 said:

You could defeature the threads to hex mesh the bolt.

Or use tetmesh.

Or connectors works as well.

Please explore the resources I sent earlier, as these have information on connectors as well.

https://www.youtube.com/@AltairHowTo/search?query=connector

I am not sure what you mean by assign friction forces?

Pretension? Contact?

There are a number of videos and tutorials on pretension as well.

https://www.youtube.com/@AltairHowTo/search?query=pretension

the bolts which we get from connectors in hypermesh, will they have like a clearance between shank and hole ? Or is it a perfect fit?

Jason_Craanen

TEJAS C C said:

the bolts which we get from connectors in hypermesh, will they have like a clearance between shank and hole ? Or is it a perfect fit?

They would be 1d elements.

 

TEJAS C C

Jason Craanen_20442 said:

They would be 1d elements.

 

What do you mean by that

Jason_Craanen

TEJAS C C said:

What do you mean by that

Please spend a little time looking through the material I sent to you.

This video shows the difference between 1d/3d for pretension application.

https://www.youtube.com/watch?v=V7oIdVckE9w

TEJAS C C

Jason Craanen_20442 said:

Please spend a little time looking through the material I sent to you.

This video shows the difference between 1d/3d for pretension application.

https://www.youtube.com/watch?v=V7oIdVckE9w

By pretension u mean clamping force sir?

Yep IM seeing all the videos

TEJAS C C

Jason Craanen_20442 said:

Please spend a little time looking through the material I sent to you.

This video shows the difference between 1d/3d for pretension application.

https://www.youtube.com/watch?v=V7oIdVckE9w

IM confused

does pretension mean clamping force?

Jason_Craanen

TEJAS C C said:

IM confused

does pretension mean clamping force?

https://help.altair.com/hwsolvers/os/topics/solvers/os/analysis_pretensioned_bolt_r.htm#analysis_pretensioned_bolt_r

TEJAS C C

Jason Craanen_20442 said:

https://help.altair.com/hwsolvers/os/topics/solvers/os/analysis_pretensioned_bolt_r.htm#analysis_pretensioned_bolt_r

Hello Jason,

Hope you are doing well. I can't really thank you enough for the guidance. I had a doubt regarding connectors. I realize rbe2 is suited for the bolted joint, pls correct me if I'm wrong.

During creating the connection, using rbe2 for the bolt. Should I also create a beam element? or rbe2 is enough? Please help me with this.