Changing coordinate system from cylindrical to Spherical 1

[yaston4]

Hello all,

I have tried going through the manuals to find out how I can change the coordinate system from rectangular (cartesian) to spherical and tried a number of ways with no success can anyone please offer any help on this.

Thanks.

 

[yaston4]

Sorry the topic should say "Changing coordinate system from Rectangular to Spherical"

 

[yaston4]

Would really appreciate some help and advice on this, thanks.

 

[akabarten]

Hello,

how I can change the coordinate system from rectangular (cartesian) to spherical

If you would like define node coordinates in spherical coord. system type then use:

**
*NODE, SYSTEM=S
node_id, radial distance, polar angle (deg), azimuthal angle (deg)
**

If you want to define your bc or load in user coordinate system then:

**
*NSET, NSET=load-NSET
node_id
*TRANSFORM, TYPE=S, NSET=load-NSET
x_coord_a, y_coord_a, z_coord_a, x_coord_b, y_coord_b, z_coord_b
**

Regards,
Bartosz

 

[yaston4]

Thanks Bartosz for your helpful reply,

I wondered if there was a way of having abaqus convert the coordinates from cartesian to spherical/cylindrical without having to define all the nodes in the input file, i.e. maybe a feature in CAE to change from cartesian to spherical. Does anyone know if you can, I couldn't find anything in the manual.

Thanks

 

[akabarten]

Hi,

I don't know is it possible with Abaqus/CAE, however there is one more keyword which can be helpful
to make conversion between coordinates systems. Please check *NMAP keyword.

Regards,
Bartosz