AIM Inputs

The following list outlines the Astros 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 = "astros_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.
• aimInputsAstros = 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.
• 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", "AeroelasticTrimOpt", "AeroelasticFlutter", "Optimization", "AeroelasticOptimization". For optimizations involving both steady and unsteady aerodynamic models, use "AeroelasticOptimization". 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 = "Free"
  Formatting type for the mesh file. Options: "Small", "Large", "Free".
• Design_Variable = NULL
  The design variable tuple 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 used to input design constraint information for the model optimization, see FEA Design Constraints 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 Astros manual).
• Optimization_Control = NULL
  Optimization case control (see Astros 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 user entries. This can be used to input things to ASTROS such as CONVERT or MFORM etc. The input is in Tuple form ("DATACARD", "DATAVALUE"). All inputs are strings. Example: ("CONVERT","MASS, 0.00254"). Note: Inputs assume a "," delimited entry. Notice the "," after MASS in the Example.
• Aero_Reference = NULL
  Parameter tuple to define aerodynamic reference parameters. see FEA Aerodynamic References for additional details
• Mesh_Morph = False
  Project previous surface mesh onto new geometry.
• Mesh = NULL
  A Mesh link.