Bearing Load:

Applies a variable distribution of force to one complete right cylinder in a 3-D simulation, or to a circular edge in a 2-D simulation.

Notes:

• If your CAD system split the cylinder into two or more faces, select all of the faces when defining the bearing load.
• Use one bearing load per cylinder.
  Do not use multiple select to apply a bearing load to different cylinders.
  If you do, the load is divided among the multiple cylindrical faces by area ratio.
• Element type: SURF154 creates the distribution of load

• Impeller should NOT turn, but constraints are not adequate to prevent it.

• Observed: turning/not turning of impeller was affected by mesh refinement

• Theory: Mesh size variations and loading with SURF154 may have some imbalance which drives impeller to turn. 
  (Test – use FSUM command to verify ?)

• To prevent impeller turning – change ”no-separation” contact between pulley hub face and housing into a “bonded” contact.

P:\ Drive Problems

• Large scratch files are created during solution. 
• For example, if your project name was “HW-7A” 
• These files are in a folder “Static Structural” in another folder named “HW-7A Simulation Files” under the folder where you last saved your project work (the dsdb file)

The minimum files you need to keep are:

• HW-7A.wbdb

• HW-7A.agdb (only if DesignModeler was used)

• HW-7A.eddb

• HW-7A.dsdb

• HW-7A.params

             Operate ALWAYS on the temporary local drive ?

Contact/Target element behavior options [KEYOPT(12)]

• This is the default configuration for contact regions.

• If contact regions are bonded, then no sliding or separation between faces or edges is allowed.

• Think of the region as glued. This type of contact allows for a linear solution since the contact length/area will not change during the application of the load.

• If contact is detected on the model, any gaps will be closed and any initial penetration will be ignored.

 No Separation:

• This contact setting is similar to the bonded case.

• It only applies to regions of faces.

• Separation of faces in contact is not allowed, but small amounts of frictionless sliding can occur along contact faces.

Workbench – Automatic Contact Detection

• In ANSYS, we used the “Contact Wizard” and manually picked edges/surface for contact/target pairs. 
• Workbench automatically makes “Contact Regions” where it detects bodies or faces near each other. We can control whether WB checks edges, vertices, or faces.
• The user can delete Contact Regions, have WB automatically detect on demand, insert Manual Contact Regions, change settings for contact behavior on each region.

Simulation allows you to execute custom functionality that is not included in a standard Simulation menu entry via its Run Macro feature. The functionality is defined in a macro - a script that accesses the Simulation application programming interface (API).

Macros can be written in Microsoft's JScript or VBScript programming languages. Several macro files are provided with the ANSYS Workbench installation under \ANSYS Inc\v110\AISOL\DesignSpace\DSPages\macros.

Macros cannot currently be recorded from Simulation.