Learning Forum

[Emiliano Maldonado]

Hi everyone,

I am trying to assign the COMBIN14 command to a volume's surface, but I cannot find the way to do that. What I am doing is the following:

1) I assign a named selection for the surface (the name is, for instance, "FORMATION_LEVEL")

2) After that, I try to find an ID/ET for the named selection in the *.dat input file. The only I can find is the following:

[Govindan Nagappan]

You can use the *GET command to find the maximum element type number used. Then use a number greater than that for the elements you are creating
Example:
*get,total_etyp,etyp,0,num,max !get maximum element type number
ET,total_etyp+1,14 !set combin14 element type number = total_etyp+1
Hope this helps

[mrife]

can I ask why you are doing this via a commands object when springs are supported natively in the UI?
Mike

[Emiliano Maldonado]

Thanks for your interest.
What I'm trying to do, is to include a command for a "ground-to-solid" spring. The purpose of the command is to include a table with values of stiffness and damping which are frequency dependent:
I do know I'm doing something wrong, the problem is that I do not know where's the error. Any help shall be much appreciated.
Best regards!

[Erik Kostson]

Please see the sample script below on how this is done via a command snippet under the spring object.

Everything is there so one needs only to modify/modify the table stiffness vs frq. table (called kfreq) - see the *dim command.


All the best

Erik