Setting up Initial Condition Motions Activity Analyses
As explained in
Setting up Initial-Velocity Analyses, Adams Driveline creates a point motion whenever you define a force-based connection between two parts. You can use this point motion to make the entire driveline behave as a kinematic system, so it can inherit the initial rotational velocity from the tires. Before running the dynamic analysis, Adams Driveline automatically deactivates initial condition motions.
Deactivating Point Motions
In some instances, one or more point motions can cause the system to be overconstrained. For example, when creating a clutch assembly, the friction disk is typically constrained both to the flywheel and to the pressure plate with a clutch force element, and to the hub of friction disk with a torsion spring damper. In this situation, there are three point motions but only two are needed to fully constrain the model. You can deactivate one of the point motions between the friction disk and flywheel, or between the friction disk and the pressure plate.
To deactivate a point motion:
1. Open your assembly in Adams Driveline.
2. From the Tools menu, select IC Motions Activity.
Note: | If your assembly does not use a subsystem with initial condition motions, Adams Driveline informs you that there are no IC motions in your template. Select OK, and the Driveline IC Motions Status dialog box opens. |
4. Select Close.
Adams Driveline skips the deactivated point motions from the group called lock array, and ignores them during the initial velocity analysis.