Rotation parts by means changing coordinates into input file

[Ingife]

Hi everybody,

I'm making a model that consists of three parts, two solids and one shell. I created the parts and then the assembly by using .cae interface but without move o rotate parts, in order to avoid relative coordinates in the input file.
For this reason I continued to edit my model by means the input file but a problem comes when I manipulate the coordinates of the nodes. If I exchange y column coordinates with z column of a solid part, in order to rotate the body, and If I import this in .cae interface to check contingent errors this part becomes translucent and you know that translucent body means that there is some mistakes.

I 'd like to know what I'm doing wrong in these steps, because if I do the same with a shell body no problems occurs.

Thank you for your time

Jack

 

[Mustaine3]

I think the nodal connectivity gives a negative volume for your solid elements, when you switch the nodal coordinates like that.

Why are you doing such strange things? Rotating a part can be done in the assembly module.
If you don't want part coordinates of nodes in your input file, you can write it out flat (= without part- and assembly structure). So the nodal coordinates are the same as the location in the assembly module.

 

[DrBwts]

You cant just swap y co-ordinates for z co-ordinates the way you have.

You would need to multiply the full set of nodal co-ordinates for the part with the rotation matrix for 180 degrees,

-1 0 0
0 1 0
0 0 1

Besides that why not do it in CAE as Mustaine3 suggested?

 

[Ingife]

Thank you for your suggestions!

Dr Bwts your reply is clear but I don't know how can I write in out flat as Mustaine3 suggested me.

Could you please explain me!

 

[Mustaine3]

Model > Edit Attributes > Do not use parts and assemblies in input files

CAE Manual 9.10.4 Writing input files without parts and assemblies

 

[Ingife]

Ok, now I understand, I knew that option and I'm using it. If I make the assembly and I don't change the position of the parts relative coordinates not appear in the input file, but in my case I need to rotate the parts and doing this with abaqus.cae relative coordinates appear in the input file.

Anyway thank you very much for your suggestions, my problem is solved by using rotation matrix.

Greetings