Dynamic multiport subsystems

When conducting simulations of large-scale dynamic systems in an engineering design context, one often wishes to obtain solutions subject to varying model parameters and input conditions. This desire points to a need to increase the efficiency of computing such solutions while retaining required accuracy. For many types of large-scale dynamic systems the bond graph has proven to be a valuable modeling tool. This paper reports on a new extension to the ENPORT software for bond graph simulation, namely, the dynamic multiport. One advantage of modeling with dynamic multiports is that they permit the use of multiple time-scales in the integration of subsystems. Such an approach can lead to gains in solution efficiency under suitable conditions. An example illustrates the potential of the approach