NASTRAN Interface

Solver	Nastran
Type of mesh	unstructured mesh
Dimension	2D and 3D

(Return)

The translator creates the NASTRAN input file using an unstructured mesh file, its corresponding boundary conditions file and parameter file (.par) .  

Select solver

Select solver "Nastran" in the "Output" menu.

Setup NASTRAN parameters and options

To create the NASTRAN input file, select the solver "NASTRAN" in the "Output > Select solver" menu from the ICEM CFD Mesh Editor. Click on the "PAR" Icon,  which brings up the Solver parameter window. Within this menu solver parameters and options are specified, such as:

• Executive Control Statements (SOL, TIME, DIAG)
• Loads
• Buckling Analysis
• Eigenvalue Extraction Data
  
• Local Coordinate Systems
  
• Materials
• Output Options
• etc.
  

Boundary Conditions Menus

Analysis Data

• AD.01 Pin flag
• AD.05 Offset
• AD.07 Geometric property data: Bar element
• AD.10 Static load set combination
• AD.11 Single point constraint combinations
• AD.12 Load flag
• AD.13 Single point constraint
• AD.17 Beam Orientation Data
• AD.18 Additional Beam Data
  

Boundary Condition

• BC.01a Fixed degrees of freedom: Translation
• BC.01b Fixed degrees of freedom: Rotation
• BC.02a Imposed displacements: Translation
• BC.02b Imposed displacements: Rotation
• BC.03 Static Force at grid point
• BC.04a Pressure load on 2D elements (PLOAD) 
• BC.04b Applied loads for edges (PLOAD1)
• BC.04c Pressure load on 2D elements (PLOAD2)
• BC.05 Applied pressure for subfaces (PLOAD4)
• BC.06 Temperature
• BC.07 Displacement coordinate system
• BC.16 Static Moment at grid point
• BC.17 Scalar Points

Element Data

• EL.01 Scalar spring elements
• EL.02 Bar elements
• EL.03 Shell elements
• EL.04 CQUADR elements
• EL.05 CTRIAR elements
• EL.06 Volume elements
• EL.07 RBE2 Elements
• EL.08 RBE3 Elements
• EL.09 Shear Panel elements
• EL.10 Rod elements (CROD)
• EL.11 Rigid bar elements (RBAR)
• EL.12 Rigid pin-ended elements (RROD)
• EL.13 Rigid triangular plate elements (RTRPLT)
  

Property Data

• PD.01 Scalar Mass Property
• PD.02 Scalar Damp Property
• PD.03 Scalar Elastic Property
• PD.04 Viscous Damping Element Property
• PD.05 PBAR property data
• PD.06 IBEND1 curved beam property data
• PD.07 IBEND2 curved pipe property data
• PD.08 PHBDY properties
• PD.09 PTUBE properties
• PD.10 PBEAM properties
• PD.11 PCOMP Layered Composite Element Properties
  
  

Creating the Nastran input file

After clicking "Write input " you can specify the following options for the interface: A window opens to allow the specification of the files to be translated into the Nastran input file format.  An existing unstructured domain file must first be selected.   In addition, the output interface requires the boundary conditions file and parameter file (.par).  

The interface generates the Nastran input file in the current project directory.