Freesize optimisation errors: element quality check & ERROR # 2148

KianTopOpt

Hi there, fairly new user of Hypermesh here. I am struggling to get the free size optimisation to work for the 2D cross-section of a float. This is being done after importing the .stl from a prior topology optimisation. I would greatly appreciate any help.

FSflost2D_try4.out

Uploaded May 14, 202514.43 KB

FSflost2D_try4.hm

Uploaded May 14, 2025249.58 KB

I am currently getting an error ​as follows: *** PROGRAM STOPPED: ERRORS DURING ELEMENT QUALITY CHECK.

When I auto fix the elements, I get a new error (as well as the geometry getting deformed): ​ A fatal error has occurred during computations:   *** ERROR # 2148 ***  Invalid design problem.  All the sensitivities of response 1 (objective) are zero.

Many thanks

Rajashri_Saha

Hi,

Can you try running with PARAM,CHECKEL,NO card?

Thanks…