Apply an initial angular velocity

The Initial Angular Velocity is used to apply rotational motion to a body at the start of the analysis, to replicate a real-life scenario where the body is already in motion.

These instructions assume you are in the Simulation workspace, and have created an Event Simulation study.

1. Click (Simulation workspace > Setup tab > Loads panel > Initial Angular Velocity) to open the Initial Angular Velocity dialog.

2. Select the body that is to be in motion, from within the canvas.

3. Set the Direction Type.

   • Normal enables you to specify the direction of rotation of a body, normal to a direction reference face.

     1. Optionally, click Select associated with Location Reference, and select a reference object. Three manipulators appear, which you can drag to direct the location.

     2. Click Select associated with Direction Reference, and select a planar face as reference object. A rotation glyph appears to show you the direction of the motion. Click another face if the direction is incorrect.

     3. Enter the Magnitude for the velocity.

        Note: Check the units and change them as appropriate.

     4. If you specified a location reference, enter a distance on each of the X, Y, and Z location components to define a direction, if you haven't already done so using the manipulators.

   • Axis enables you to specify the direction and location of rotation of a body, relative to a single cylindrical face or linear edge.

     1. Click Select associated with Location Reference, and select a cylindrical face, or linear edge, as the reference location. Three manipulators appear, which you can drag to direct the location. A rotation glyph appears to show you the direction of the motion. Click another face if the direction is incorrect.

     2. Enter the Magnitude for the velocity.

        Note: Check the units and change them as appropriate.

     3. Enter a distance on each of the X, Y, and Z location components to define a direction, if you haven't already done so using the three manipulators.

   • Vectors (x,y,z) enables you to specify the direction of rotation by typing a value into the x, y, and z direction components.

     1. Click Select associated with Location Reference, and select a planar face, edge, or vertex, as the reference location. Three manipulators appear, which you can drag to direct the location.

     2. Enter the Magnitude for the velocity.

        Note: Check the units and change them as appropriate.

     3. Enter a distance on each of the X, Y, and Z location components to define a direction, if you haven't already done so using the three manipulators.

     4. Enter a value into the X, Y, or Z direction components to specify the axis of rotation. A rotation glyph appears to show you the direction of the motion. Change the values and the axes if the direction is incorrect.

4. Click OK to accept the changes and close the dialog.