Bushings

Create bushings between the selected surfaces of the parts.

With bushings, you can create connections with multi-directional stiffness and mass properties between two set of surfaces of two parts. This helps capture the physics and more accurately correlate results within an assembly.​

Create Bushings

Bushings can be created between two set of surfaces of two parts or a single set of surfaces of a single part to ground. You need to define at least one linear or rotational stiffness. Mass is optional.

You can create a bushing with the default properties or create a bushing with the same properties as the previously selected bushing.
  1. On the Structures or Motion ribbon, select the Bushings tool.

    Tip: To find and open a tool, press Ctrl+F. For more information, see Find and Search for Tools.
  2. Choose the type of bushing to create:
    • Part to Part (default): Create a bushing between selected surfaces of a pair of parts.
    • Part to Ground: Create a bushing between selected surfaces of a single part to ground.
  3. Do one of the following:
    • To create a bushing with the default properties, select the surfaces of two parts between which you want to create a bushing.
    • To create a bushing with the same properties as the previously selected bushing, select a surface.
    Note: While holding down Ctrl, click to multi-select and deselect.
  4. On the Stiffness, Damping, and Preload tabs, you can do the following:
    Note: Damping, and Preload are only available if you opened Bushings from the Motion ribbon.
    1. Choose between orthotropic or isotropic stiffness:
      • To apply orthotropic stiffness to the bushing (use different stiffness, damping, or preload values for each direction,) in the guide panel, turn on Orthotropic.
      • To apply isotropic stiffness to the bushing, turn off this option.
    2. Enter at least one linear stiffness property or one rotational stiffness property.
      If you applied orthrotropic stiffness If you applied isotropic stiffness
      To define linear stiffness Enter TX, TY, TZ. Enter T(X, Y, Z).
      To define rotational stiffness Enter RX, RY, RZ. Enter R(X, Y, Z).
    3. Optional: Enter at least one linear damping property or one rotational damping property.
      If you applied orthrotropic damping If you applied isotropic damping Notes
      To define linear damping Enter TX, TY, TZ. Enter T(X, Y, Z). This option is only available for Motion.
      To define rotational damping Enter RX, RY, RZ. Enter R(X, Y, Z). This option is only available for Motion.
    4. Optional: Enter at least one linear or rotational preload property.
      If you applied orthrotropic preload If you applied isotropic preload Notes
      To define linear preload Enter TX, TY, TZ. Enter T(X, Y, Z). This option is only available for Motion.
      To define rotational preload Enter RX, RY, RZ. Enter R(X, Y, Z) This option is only available for Motion.
  5. On the Inertia tab, enter the following:
    Note: The Inertia tab is only available if you opened Bushings from the Structures ribbon.
    • Mass: Enter the bushing's mass.
    • Ixx: Enter the moment of inertia about the axis oriented as global x passing through the center of mass
    • Iyy: Enter the moment of inertia about the axis oriented as global y passing through the center of mass
    • Izz: Enter the moment of inertia about the axis oriented as global z passing through the center of mass
  6. Click Create the Bushing .

  7. In the microdialog, you have the following options:
    Option Description
    Align to Global Axes

    Align to the global axes.
    Move

    Translate or rotate using the Move tool.
    Add/Remove

    Add/remove faces from the selected bushings.
    Set Origin X Set the origin coordinate in the X direction.
    Set Origin Y Set the origin coordinate in the Y direction.
    Set Origin Z Set the origin coordinate in the Z direction.
  8. To create more bushings, repeat Steps 2–7.
  9. Right-click and mouse through the check mark to exit, or double-right-click.

Edit Bushings

Select one or more bushings to change their properties.

To review all bushings and edit their names and properties in one place, see Open the Bushings Table.

  1. On the Structures or Motion ribbon, select the Bushings tool.

    Tip: To find and open a tool, press Ctrl+F. For more information, see Find and Search for Tools.
  2. Select the bushings that you want to edit.
    Note: While holding down Ctrl, click to multi-select and deselect.
  3. In the guide panel, you can change or add new linear stiffness properties or rotational stiffness properties on the Stiffness, Damping, and Preload tabs:
    Note: Damping, and Preload are only available if you opened Bushings from the Motion ribbon.
    1. Choose between orthotropic or isotropic stiffness:
      • To apply orthotropic stiffness to the bushing (use different stiffness, damping, or preload values for each direction,) in the guide panel, turn on Orthotropic.
      • To apply isotropic stiffness to the bushing, turn off this option.
    2. Enter at least one linear stiffness property or one rotational stiffness property.
      If you applied orthrotropic stiffness If you applied isotropic stiffness
      To define linear stiffness Enter TX, TY, TZ. Enter T(X, Y, Z).
      To define rotational stiffness Enter RX, RY, RZ. Enter R(X, Y, Z).
      Note: If multiple bushings with different properties are selected, the fields will be blank.
    3. Optional: Enter at least one linear damping property or one rotational damping property.
      If you applied orthrotropic damping If you applied isotropic damping Notes
      To define linear damping Enter TX, TY, TZ. Enter T(X, Y, Z). This option is only available for Motion.
      To define rotational damping Enter RX, RY, RZ. Enter R(X, Y, Z). This option is only available for Motion.
    4. Optional: Enter at least one linear or rotational preload property.
      If you applied orthrotropic preload If you applied isotropic preload Notes
      To define linear preload Enter TX, TY, TZ. Enter T(X, Y, Z). This option is only available for Motion.
      To define rotational preload Enter RX, RY, RZ. Enter R(X, Y, Z) This option is only available for Motion.
  4. On the Inertia tab, you can change the following:
    • Mass: Enter the bushing's mass.
    • Ixx: Enter the moment of inertia about the axis oriented as global x passing through the center of mass
    • Iyy: Enter the moment of inertia about the axis oriented as global y passing through the center of mass
    • Izz: Enter the moment of inertia about the axis oriented as global z passing through the center of mass
  5. Click Create the Bushing .
    The changes will be applied.
  6. In the microdialog, you have the following options:
    Option Description
    Align to Global Axes

    Align to the global axes.
    Move

    Translate or rotate using the Move tool.
    Add/Remove

    Add/remove faces from the selected bushings.
    Set Origin X Set the origin coordinate in the X direction.
    Set Origin Y Set the origin coordinate in the Y direction.
    Set Origin Z Set the origin coordinate in the Z direction.
  7. Right-click and mouse through the check mark to exit, or double-right-click.

Open the Bushings Table

Review all bushings and edit their names and properties in one place.

  1. On the Structures or Motion ribbon, select Open Bushings Table.

    Tip: To find and open a tool, press Ctrl+F. For more information, see Find and Search for Tools.
    The Bushings table is displayed.

  2. You can edit the names and properties of all bushings here.
  3. Right-click and mouse through the check mark to exit, or double-right-click.