This chapter introduces some key concepts that underlie the framework and methodology for modeling and simulation (M&S) originally presented in “Theory of Modeling and Simulation” published in 1976 − referred to hereafter as TMS76 to distinguish it from the current revised edition TMS98. Perhaps the most basic concept is that of mathematical systems theory. First developed in the nineteen sixti...

The paper describes a formal framework for object-oriented modeling of mechatronic systems, whose main contribution is on one hand to unify the modeling approaches for dynamical systems and for industrial control software and, on the other hand, to provide a definition of inheritance, a cardinal concept in object-orientation, that emphasize the behavioral conformity of base and derived classes ...

A new procedure for deriving nonlinear mathematical modeling for a specific class of aerospace hydro - mechanical control valves is presented. The effects of friction on the dynamic behavior of these types of valves along with the experimental verifictions are also given. The modeling approach is based on the combination of the following three tasks: decomposition of the valve into simple speci...