How to export the mass matrix from superelements (substructure file *.sub)?

- June 21, 2018 at 10:26 am
  konne89
  Subscriber
```
How can I get the mass matrix from a superelement? For the stiffness
matrix that works without problems, but I try it in the same way for 
the mass matrix and it doesn't work.

I work wtih Ansys Workbench and add some Commands.
```
- June 21, 2018 at 2:24 pm
  
  Sandeep Medikonda
  Ansys Employee
  
  Hi,
  
  Yes it is possible to retrieve the mass matrix from the .sub file using the HBMAT command. Please look up this command in the manual.
  
  Just note that this particular command only works in the /aux2 module.
  
  Regards,
  
  Sandeep
- June 21, 2018 at 4:15 pm
  
  konne89
  Subscriber
  
  Solved it! You've to implement a command in the Solution in Workbench. Below is my source code:
  
  fini
  /filname,myse        ! name of the super element
  /solu
  antype,substr       ! analysis type: substructure
  seopt,myse,2        ! saves mass and stiffness matrix
  m,all,all               ! creates master nodes
  solve
  fini
  
  /AUX2
  FILE,myse,sub
  HBMAT,aux2_stiffmatrix, txt,,ASCII,STIFF,YES,YES
  FINISH
  
  /AUX2
  FILE,myse,sub
  HBMAT,aux2_massmatrix, txt,,ASCII,MASS,YES,YES
  FINISH

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