ToTimeDependentLinkage[linkage, t] Converts linkage into a time dependent mechanism. The function determines the time-dependent variables of the linkage and calculates symbolically the first derivatives of these variables with respect to t symbol.
The value of the time derivative of the driving variables can be specified with the DrivingVelocity option. The default value is 1, which specifies a unit velocity of the driving variable.
The velocity of the driving variables must be constant. If other function is needed, parametrize the driving variables with respect to the time parameter.