Adams Basic Package > Adams View > View Command Language > part > part modify fe_part nodal_ics

part modify fe_part nodal_ics

Allows you to prescribe nodal initial velocities on an existing FE Part.
Translational velocities are specified by parameters VX, VY, and VZ.
Rotational velocities are specified by parameters WX, WY, and WZ.
 
Note:  
The initial translational and rotational velocities are specified with respect to the fe part body coordinate axes, unless vm or wm are defined at the fe part level.

Format:

 
part modify fe_part nodal_ics
fe_node_name =
existing fe_node on fe part
vx =
velocity
vy =
velocity
vz =
velocity
wx =
angular_vel
wy =
angular_vel
wz =
angular_vel

Example:

 
part modify fe_part nodal_ics &
fe_node_name =
FE_Part_2.FE_Node_4 &
vx =
13 &
wz =
34
This will apply a translational velocity of 13 and rotational velocity of 34 in modeling units to node FE_Node_4 on FE_Part_2.

Description:

 
Parameter
Value Type
Description
fe_node_name
Existing fe node
Specifies the name ID of the fe node for the fe part (required)
vx
Velocity
Specifies the initial translational velocity for the fe node along the x-axis of the FE Part’s LPRF or vm if specified.
vy
Velocity
Specifies the initial translational velocity for the fe node along the y-axis of the FE Part’s LPRF or vm if specified.
vz
Velocity
Specifies the initial translational velocity for the fe node along the z-axis of the FE Part’s LPRF or vm if specified.
wx
Angular_velocity
Specifies the initial rotational velocity for the fe node about the x-axis of the FE Part’s LPRF or wm if specified.
wy
Angular_velocity
Specifies the initial rotational velocity for the fe node about the y-axis of the FE Part’s LPRF or wm if specified.
wz
Angular_velocity
Specifies the initial rotational velocity for the fe node about the z-axis of the FE Part’s LPRF or wm if specified.
 
Tip:  
1. Adams Solver requires all nodal initial velocities be specified in the same reference frame, so any reference frame specification other than the FE Part's LPRF must be done on the overall FE Part level using part modify fe_part initial_velocity vm=<marker> wm=<marker>
2. Adams Solver requires all six components of nodal velocities to be prescribed if one or more are defined, so Adams View will set all undefined nodal velocity components to zero.