Applied Rotational Velocities

A rotational velocity prescribes an angular velocity about a specified axis. To make use of this , the model must have at least one rotational degree of freedom.

You can create a rotational body force load to define loads resulting from rotation of the model. You can specify either angular velocity or rotary acceleration. Abaqus defines the load by using the square of the angular velocity or by using the acceleration directly. In either case, the load definition must include an axis of rotation, which is defined as follows:

  • If you are working in three-dimensional space, you define the location and direction of the axis by entering the global coordinates of two points.
  • If you are working in two-dimensional space, you specify the location of the axis by entering the coordinates of a point in the plane. The direction of the axis is always out of the plane.
  • If you are working in axisymmetric space, the axis is always in the location and direction of the positive global Z-axis.

You can define a rotary acceleration force only in two- or three-dimensional space.