Cylindrical coordinates in NX12

[Itxusta]

Hi,

I am modelling a bearing in NX12, which I have done using RBE2 elements to connect the inner (red colour) and outter (blue colour) faces of the bearing with points in the center and then applying a CBUSH to connect the points (the green spring in the center connecting the blue and red dots). I want to apply the axial and radial stiffnesses to the CBUSH but I don't know which coordinates are the radial and axial ones.

Thank you for your help!

Regards

 

[SWComposites]

you need to define a cylindrical coordinate systems, and then assign that system to the nodes.

 

[Itxusta]

I understand that, but which coordinate (x, Y or Z) of the PBUSH property table refers to the axial and radial coordinates of the new cylindrical coordinate system?

Thanks!

 

[SWComposites]

(r, theta, z):
x = radial
y = tangential
z = axial

 

[BlasMolero]

Dear Itxusta,
As told by SWCOMSITES you need to assign a cylindrical coordenate system (either local or global) to the properties of the CBUSH element.
This is the form we have in FEMAP with NASTRAN software bundle to define the properties of the CBUSH element, search for similar fields in NX CAE: once activated the cylindrical system in the PBUSH property the stiffness defined in X is radial.

Best regards,
Blas.

~~~~~~~~~~~~~~~~~~~~~~
Blas Molero Hidalgo
Ingeniero Industrial
Director

IBERISA
48004 BILBAO (SPAIN)
WEB:

http://www.iberisa.com

Blog de FEMAP & NX Nastran:

http://iberisa.wordpress.com/

 

[Itxusta]

Thank you both for you quick responses, it works now!

Regards