Joint Initial Velocity: Translational

Model ElementThe JointInitialvel_Trans element defines the initial translational velocity for a translational joint element.

Format

<JointInitialVel_Trans
joint_id    = "integer"
iv          = "real"
/>

Attributes

joint_id
The ID of the translational joint whose initial velocity is being specified.
iv
The initial translational velocity of the translational joint. The value specified is the translational velocity of the I marker of the joint relative to the J marker of the joint. The unit is model length unit per model time unit.

Example

The image below shows the schematic of a translational joint which is connecting the actuator body to the ground.

Assume that at the start of the simulation, the actuator is being ejected out of the Ground body at 10 millimeters per second. The initial velocity for the translational joint may be specified as follows:

<JointInitialVel_Trans
joint_id  = "1"
iv        = "10">
/>