Multirate simulation of mechatronic systems

In the simulation of mechatronic systems with the help of computers, the use of multirate integration methods allows saving computing time response reaching higher computing precision without higher expense. In the process, however, effects like aliasing and undesirable high frequencies may occur that can result from differing stepsizes. In the following, we present the mechanisms that can compensate for these negative features. Moreover, an exemplary system is used to describe the partitioning into subsystems of varying velocity. Eventually the simulation results of the subsystem in question are presented and discussed. This paper is structured as follows: Section 1 gives an overview of the contents. Section 2 presents a suitable multirate integration method. Section 3 deals with the sequence of evaluations. Section 4 illustrates the realization by software tools and in Section 5 the method described is shown by an example.