Detecting and Handling Physical Clashes

You can detect and handle clashes in simulations of Modelica models generated from physical mechanisms. If a clash occurs, clashing objects are highlighted, and the simulation can be stopped.

Notes:
  • If contact occurs during initialization of the model, the clash computation supposes the contact as normal; no action is performed (highlighting or stop on clash). If contact remains for the following simulation steps, no action is performed.
  • Clash computation is performed only on CATIA Physical 3D shapes; Modelica shapes, VRML, DXF etc. shapes are not taken into account for clash computation.

This task shows you how to:

Before you begin: Simulate a Modelica model generated from a physical mechanism.
Important: One of the objects involved must be fixed.
See Also
About Generating a Modelica Representation of a Mechanism of a Physical Product

Activate Physical Clash Computation

You can activate clash computation to compute if a clash occurs.

From the Simulation Tools window, click Activate/Deactivate Physical Clash Computation to activate the clash computation.
The clash computation is activated. If a clash occurs, objects in clash are highlighted.

To deactivate the clash computation, click again Activate/Deactivate Physical Clash Computation .

Stop on Clash

By activating stop on clash, the simulation stops when a clash occurs.

Click Activate/Deactivate Stop On Clash from the Simulation Tools window.
The simulation stops if a clash occurs.

To deactivate stop on clash, click again Activate/Deactivate Stop On Clash .