The behavior of a component observed after implementation might differ from the characteristic that was determined in laboratory before. These deviations are often caused by discrepancies in the boundary conditions between the field and laboratory environment. Active control of mobility allows replicating the boundary conditions as well as the dynamic behavior of adjoining subsystems within the test facility by means of active systems. Numerical models are used in order to simulate the behavior of the missing subsystems experimentally. Within this contribution two realizations from different fields of engineering are presented.