FBD Solver Interfacing

The Free Body Diagram utility will behave differently depending on the solver that you interface with in HyperView.
Ansys
  • Currently only supported for Win32 and Win64 platforms.
  • Results are supported through the .rst output file.
  • Grid Point Forces (GPF) results are requested with the following .rst file output requests:
    • OUTRES,ALL,ALL

      OR

    • OUTRES,NSOL,ALL
    • OUTRES,RSOL,ALL
  • Displacement results are requested with the following .rst file output requests:
    • OUTRES,ALL,ALL

      OR

    • OUTRES,NSOL,ALL
    • OUTRES,RSOL,ALL
Nastran
  • Results are supported through the .op2 output file.
  • Grid Point Forces (GPF) results are requested with the GPFORCE .op2 output request.
  • Displacement results are requested with the DISPLACEMENT .op2 output request.
  • It is recommended practice to output data for only the node set(s) of interest. This procedure reduces the size of the solver results file and helps speed up the FBD extractions. Consider using STRESS=NONE and STRAIN=NONE to further reduce the size of the results file.
  • MPC forces and moments are properly extracted for the following MPC constraint types:
    • RBE2
    • RBE3
    • RigidLink
    • RJOINT
    • RROD
    • RBAR
OptiStruct
  • Results are supported through the .op2 output file.
  • Grid Point Forces (GPF) results are requested with the GPFORCE .op2 output request.
  • Displacement results are requested with the DISPLACEMENT .op2 output request.
  • It is recommended practice to output data for only the node set(s) of interest. This procedure reduces the size of the solver results file and helps speed up the FBD extractions. Consider using STRESS=NONE and STRAIN=NONE to further reduce the size of the results file. You may consider using the NOMODEL option on the OUTPUT,OP2 output format request.
  • MPC forces and moments are properly extracted for the following MPC constraint types:
    • RBE2
    • RBE3
    • RigidLink
    • RJOINT
    • RROD
    • RBAR
H3D
  • H3D files created using Hvtrans from Nastran/OptiStruct Op2 output files will be supported provided the OP2 contains the appropriate result types.
  • H3D allows you to combine several Op2 results files (each file representing a particular loadcase on the same model) into a single file and perform FBD extractions on all loadcases.
  • For details on the outputs the Op2 file should contain, please refer to the Nastran and OptiStruct sections above.