The property file contains an integer flag (USE_MODE) that determines if smoothing is to be used or not.  If USE_MODE is set to 1, the forces are not smoothed.  If it is set to 2, then a step function is computed.  The step function is:

The parameter tSm is hard coded to 0.1 seconds.  The smooth function multiplies the following force components:

See Also:

Conclusions and References