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SOL 101 NX Nastran Topology Optimization

Experimenter
Experimenter

I'm trying a simple topology optimization using NX Nastran Topology Optimization feature. The geometry is a simple one: A block with a fixed boundary condition on one side and a normal force on another side (See attached file).

I'm following the topology optimization guidline profided by Siemens (See attached file). 

However, The solution never converge and I always get a Fatal Error:

 

 ^^^TOPOLOGY OPTIMIZATION LOOP BOTTOM            1        10
 ^^^TOPOLOGY OPTIMIZATION LOOP TOP           2        10
 *** USER WARNING MESSAGE 3042 (GPWG)
     INCONSISTENT SCALAR MASSES HAVE BEEN USED. EPSILON/DELTA =             NaN
 *** SYSTEM FATAL MESSAGE 3007 (GPWG)
     ILLEGAL INPUT TO SUBROUTINE GPWG1S
0FATAL ERROR
1                                        * * * END OF JOB * * *
 
 
 *** SYSTEM INFORMATION MESSAGE 1156 (XCLNUP)
     GINO FILE  201 WAS LEFT OPEN AT PROGRAM TERMINATION.

 

I attached the F06 file in this document. Please let me know if you have suggestion on how to move forward from here.

 

Best Regards,

 

Martinus Arie