Non Linear CBUSH Element
Altair EmployeeHello,
for my master thesis I have to work with non-linear CBUSH Elements. I have created a TABLED1 with the forces/deflection. In the PBUSH Property I selected the KN_Line assigned the TABLED1 to the dofs. For the non-linear simulation, I have created a NLPARM card with default settings. At the end, I have created a non-linear quasi-static Loadstep. But when I try to run the simulation, I get the followin error message:
'PBUSH 2'
*** ERROR # 1000 *** in the input data:
Incorrect data in field # 3.
Could you tell me, where my mistake is?
With regards,
Metin
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Altair Employee
thanks for your quick reply. I didn´t activate the K_Line. Which sitfness factors does Hypermesh use, if I activate the K_Line. The factors I enter in the K_Line or the table I enter in the KN_Line?
Altair EmployeeAltair Employee
I have activated the K_Line now and used the default settings for the K_Line (all K-factors have a value of 0). My KN_Line is not blank. Does Hypermesh now use the KN_Line factors?
Altair Employee
That will work, but if you have not defined any table for all Dofs then this will be a problem.
Here is a example image. KN in X is defined using table and rest of the Dof were given some stiffness.
<?xml version="1.0" encoding="UTF-8"?>
Altair Employee
Thanks for the screenshot. Now I understood the system. I have one last question: I have defined a table (Moment vs. angle in radians) for each rotational DOF. Is that right, or do I have to define a Force vs. deflection Table for these DOFs, too?
Altair EmployeeAltair EmployeeOk. Thank you very much for your help.
Hi
does this method applicable for Direct Transient analysis ?
Hi @Meting92
Can you share entire .out file, please?
Looks like you didn't activate K_LINE on PBUSH.