XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX''"> Attach Results Data
The first step in browsing loads is to select the data source. If the data resides external to the MSC.Patran database, it must first be "accessed". External data sources include Aerodynamic/Aeroelastic Databases and aeroelastic analysis results files (in XDB format).
Loads Data, Model Data or both Loads and Model Data can be accessed from an external file. It is recommended that Model Data be accessed from an empty MSC.Patran database. Loads data refers to all results data, not merely the loads. Existing MSC.Patran results tools can be used for all results following the attachment in MSC.FlightLoads. Model data brings in a grid-element representation of both the structural and aerodynamic models. Neither are “complete” in the sense of direct creation, but are complete in regards to visual action of results. To bring “complete” models, use the Import function.
Accessing Aero data causes the automatic creation of an XDB file and subsequent attachment. This is transparent to the user.
If the Loads Data to be processed already resides in the MSC.Patran database as LBCs or results, it does not have to be accessed.
Overview
When Attach Results Data is selected, the first form displayed is Attach XDB/Both. Shown adjacent to this form are all the different possible Actions and Objects.
Attach Results Data
The following is a list of the Results Browser Forms and subforms related to Attach Results Data.
• Attach XDB
• Translation Parameters Subform
• Attach Aero
• Detach XDB
Attach XDB
This form illustrates the selection of an XDB results file for attachment. Typically, the default Translation Parameters are adequate and can be ignored. Note that the Element Results Position is by default set to Nodal. This should be set to Both for FlightLoads because aerodynamic forces are computed at the centroid of aerodynamic elements and the structural forces are computed at the nodes.
Translation Parameters Subform
Attach Aero
This form illustrates the selection of an Aero results file for attachment. The XDB attachment in MSC.FlightLoads has the “Rotational Nodal Results” selected by default to ensure that nodal rotations are present for spline verification and that moments are present for load summations.
Detach XDB
This form detaches the previously attached Loads Data files.
