/INIV/AXIS/Keyword3

/INIV/AXIS - Initialize Velocity with respect to an Axis by Range

Description

Initialize rotational velocity about an axis and translational velocity.

Format

/INIV/AXIS/Keyword3

Frame_ID

VXt VYt VZt Vr

N1 N2 …, NN

Data	Description	SI Unit Example
Keyword3	Direction X, Y, and Z of the frame defining the rotation axis.o
Frame_ID	Frame identifier. (Integer)
VXt , VYt , VZt , Vr	Translational velocity components in the local frame and rotational velocity about the axis. (Real)	or
N1 N2 …, NN	List of nodes.

1.	If frame_ID is not zero, the initial velocities are applied with respect to this local frame.

2.	Once Vt is expressed in the global system, the velocities are initialized with respect to:

Where, U is the vector defining the rotation axis and O represents a point on the axis and is set as the origin of the frame.