AIM Inputs

The following list outlines the Nastran inputs along with their default value available through the AIM interface. Unless noted these values will be not be linked to any parent AIMs with variables of the same name.

• Proj_Name = "nastran_CAPS"
  This corresponds to the project name used for file naming.
• Tess_Params = [0.025, 0.001, 15.0]
  Body tessellation parameters used when creating a boundary element model. Tess_Params[0] and Tess_Params[1] get scaled by the bounding box of the body. (From the EGADS manual) A set of 3 parameters that drive the EDGE discretization and the FACE triangulation. The first is the maximum length of an EDGE segment or triangle side (in physical space). A zero is flag that allows for any length. The second is a curvature-based value that looks locally at the deviation between the centroid of the discrete object and the underlying geometry. Any deviation larger than the input value will cause the tessellation to be enhanced in those regions. The third is the maximum interior dihedral angle (in degrees) between triangle facets (or Edge segment tangents for a WIREBODY tessellation), note that a zero ignores this phase
• Edge_Point_Min = 2
  Minimum number of points on an edge including end points to use when creating a surface mesh (min 2).
• Edge_Point_Max = 50
  Maximum number of points on an edge including end points to use when creating a surface mesh (min 2).
• Quad_Mesh = False
  Create a quadratic mesh on four edge faces when creating the boundary element model.
• Echo = "NONE"
  Sets the the Bulk Data ECHO statement.
  May be: "SORT", "UNSORT", "NONE"
• Nastran = NULL
  List of strings to specify NASTRAN statements
  The NASTRAN statement is used to specify values for certain Executive System operational parameters.
  These parameters are also called system cells. The NASTRAN statement is used for exceptional circumstances
  and is therefore not needed in most runs. The NASTRAN statement may also be specified in the
  runtime configuration (RC) files at the system, user, and job level as described in the .
• Property = NULL
  Property tuple used to input property information for the model, see FEA Property for additional details.
• Material = NULL
  Material tuple used to input material information for the model, see FEA Material for additional details.
• Constraint = NULL
  Constraint tuple used to input constraint information for the model, see FEA Constraint for additional details.
• Load = NULL
  Load tuple used to input load information for the model, see FEA Load for additional details.
• Analysis = NULL
  Analysis tuple used to input analysis/case information for the model, see FEA Analysis for additional details.
• Analysis_Type = "Modal"
  Type of analysis to generate files for, options include "Modal", "Static", "AeroelasticTrim", "AeroelasticFlutter", and "Optimization". Note: "Aeroelastic" and "StaticOpt" are still supported and refer to "AeroelasticTrim" and "Optimization".
• File_Format = "Small"
  Formatting type for the bulk file. Options: "Small", "Large", "Free".
• Mesh_File_Format = "Small"
  Formatting type for the mesh file. Options: "Small", "Large", "Free".
• Design_Variable = NULL
  The design variable tuple is used to input design variable information for the model optimization, see FEA Design Variables for additional details.
• Design_Variable_Relation = NULL
  The design variable relation tuple is used to input design variable relation information for the model optimization, see FEA DesignVariableRelation for additional details.
• Design_Constraint = NULL
  The design constraint tuple is used to input design constraint information for the model optimization, see FEA Design Constraints for additional details.
• Design_Equation = NULL
  The design equation tuple used to input information defining equations for use in design sensitivity, see FEA Design Equations for additional details.
• Design_Table = NULL
  The design table tuple used to input table of real constants used in equations, see FEA Table Constants for additional details.
• Design_Response = NULL
  The design response tuple used to input design sensitivity response information, see FEA Design Responses for additional details.
• Design_Equation_Response = NULL
  The design equation response tuple used to input design sensitivity equation response information, see FEA Design Equation Responses for additional details.
• Design_Opt_Param = NULL
  The design optimization parameter tuple used to input parameters used in design optimization, see FEA Design Optimization Parameters for additional details.
• Objective_Min_Max = "Max"
  Maximize or minimize the design objective during an optimization. Option: "Max" or "Min".
• Objective_Response_Type = "Weight"
  Object response type (see Nastran manual).
• Mass_Increment = NULL
  FEA Mass Increments (see Nastran manual).
• VLM_Surface = NULL
  Vortex lattice method tuple input, see Vortex Lattice Surface for additional details.
• VLM_Control = NULL
  Vortex lattice method control surface tuple input, see Vortex Lattice Control Surface for additional details.
• Support = NULL
  Support tuple used to input support information for the model, see FEA Support for additional details.
• Connect = NULL
  Connect tuple used to define connection to be made in the, see FEA Connection for additional details.
• Parameter = NULL
  Parameter tuple used to define PARAM entries. Note, entries are output exactly as inputed, that is, if the PARAM entry requires an integer entry the user must input an integer!
• Model_Parameter = NULL
  Model_Parameter tuple used to define MDLPRM entries. Note, entries are output exactly as inputed, that is, if the MDLPRM entry requires an integer entry the user must input an integer!
• Aero_Reference = NULL
  A JSON dictionary used to define aerodynamic reference parameters. see FEA Aerodynamic References for additional details
• VLM_Camber_Twist = True
  Apply camber & twist to VLM sections. Option: True or False.
• Visualize_Flutter = False
  Determines if flutter cards are written for visualization. Option: True or False.
• Mesh_Morph = False
  Project previous surface mesh onto new geometry.
• Mesh = NULL
  A Mesh link.