26.5.2.3. Boundary Condition

This page can specify boundary conditions for the beam assembly.

../_images/image05115.png

Figure 26.35 Beam Assembly property page [Boundary Condition]

  • No: Shows the Index of sheet bodies.

  • Check button: If this button is checked, a specified BC is activated in the sheet body. Or not, the specified BC is deactivated.

  • Name: Defines the name of sheet bodies belongs to the Sheet Group.

  • BC: Determines the fixed DOF of each sheet body. (link to below apply the following BC)

    ../_images/image05217.png

    Figure 26.36 Boundary Condition dialog box

    • Translation & Rotational DOF: Degree of Freedom type.

    • X, Y, Z: The components of translational and rotational DOF. The components are determined in the sheet body reference frame.

  • Selection by Simple Rule: Accesses the Selection dialog box that supports a simple rule to select many sheet bodies at the same time. The sheet bodies can be selected by following simple rule.

    \(N_{selection}=N_{start}+\Delta*(i-1)\), \(i=1,.....,n\)

    • Initialize before Update: If this button is checked and click the Update, only the check boxes of sheet bodies selected by user-defined rule are activated. Or not, the check boxes of pre-selected sheet bodies and sheet bodies selected by user-defined rule are activated.

    • Start Index: Shows the starting index in the simple rule.

    • Increment in Index: Shows the increment of index in the simple rule.

    • Number of Selection: Shows the number of selected sheet bodies in the simple rule.

    • Apply the following Boundary Condition: Determines the fixed DOF of all selected sheet bodies.

      • Translation & Rotational DOF: Degree of Freedom type.

      • x, y, z: The components of translational and rotational DOF. The components are determined in the sheet body reference frame.

    • Check button: If this is checked, the specified component is fixed to the ground.

    • Update: Updates the list with the selected sheet bodies.

    • Close: Does not update the list.

  • All/Nothing: The check boxes of all sheet bodies in the list are activated or deactivated.

  • Add + Navigation: If the user selects the Add” option and clicks the navigation button, the user can select nodes from the screen and a boundary condition is applied on the nodes.

  • Remove + Navigation: If the user selects the Remove option and clicks the navigation button, the user can select nodes from the screen and a boundary condition is not applied on the nodes.

  • Add or Remove + Navigation: If the user selects the Add or Remove option and clicks the navigation button, the user can select nodes from the screen and a boundary condition is applied or not on the nodes.