AIM Inputs

The following list outlines the Masstran inputs along with their default value available through the AIM interface.

• 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.
• 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.
• Mesh_Morph = False
  Project previous surface mesh onto new geometry.
• Surface_Mesh = NULL
  A Surface_Mesh link.
• 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.