Adams Basic Package > Adams View > View Command Language > part > part create flexible_body initial_velocity

part create flexible_body initial_velocity

Allows you to create initial velocities on an existing part.
Translational velocities are specified by parameters VX, VY, and VZ.
Rotational velocities are specified by parameters WX, WY, and WZ.
Note that the initial translational velocities are with respect to the ground coordinate axes or vm if specified, while the initial rotational velocities are with respect to the BCS for the flex body or wm coordinate system if specified.

Format:

 
part create flexible_body initial_velocity
flexible_body_name =
existing flexible body
vm =
existing marker
wm =
existing marker
vx =
velocity
no_vx =
true_only
vy =
velocity
no_vy =
true_only
vz =
velocity
no_vz =
true_only
wx =
angular_vel
no_wx =
true_only
wy =
angular_vel
no_wy =
true_only
wz =
angular_vel
no_wz =
true_only

Example:

 
part create flexible_body initial_velocity &
flexible_body_name =
flex_body__2 &
vm =
int_node_12001 &
vx =
200 &
no_vy =
true &
no_vz =
true
This will apply a translational velocity of 200 at the center-of-mass marker along the x-axis of the ground reference frame.

Description:

 
Parameter
Value Type
Description
flexible_body_name
Existing flex body
Specifies the name of the flexible body.
vm
Existing marker
Specifies a marker about whose axes the translational velocity vector components will be specified.
wm
Existing marker
Specifies a marker about whose axes the angular velocity vector components will be specified.
vx
Velocity
Specifies the initial translational velocity of the center-of-mass marker along the x-axis of the ground reference frame.
no_vx
True_only
Unsets the vx velocity initial condition for the specified part (true) so it no longer has a velocity initial condition.
vy
Velocity
Specifies the initial translational velocity of the center-of-mass marker along the y-axis of the ground reference frame.
no_vy
True_only
Unsets the vy velocity initial condition for the specified part (true) so it no longer has an velocity initial condition.
vz
Velocity
Specifies the initial translational velocity of the center-of-mass marker along the z-axis of the ground reference frame.
no_vz
True_only
Unsets the vz velocity initial condition for the specified part (true) so it no longer has a velocity initial condition.
wx
Angular_velocity
Specifies the initial rotational velocity of the center-of-mass marker about its x-axis.
no_wx
True_only
Unsets the wx velocity initial condition for the specified part (true) so it no longer has a velocity initial condition.
wy
Angular_velocity
Specifies the initial rotational velocity of the center-of-mass marker about its y-axis.
no_wy
True_only
Unsets the wy velocity initial condition for the specified part (true) so it no longer has a velocity initial condition.
wz
Angular_velocity
Specifies the initial rotational velocity of the center-of-mass marker about its z-axis.
no_wz
True_only
Unsets the wz velocity initial condition for the specified part (true) so it no longer has an velocity initial condition.

Tips:

1. Remember, leaving a velocity unset lets Adams View calculate the velocity of the part during an initial conditions simulation, depending on the other forces and constraints acting on the part. It is not the same as setting the initial velocity to zero.
2. Note that the initial translational velocities are with respect to the ground coordinate axes, while the initial rotational velocities are with respect to the center-of-mass marker axes.