Objectives of the Modelica Language. Modelica is language for describing the dynamic behaviour of technical systems consisting of mechanical, electrical, thermal, hydraulic, pneumatical, control and other components. The behaviour of models is described with •ordinary differential equations (ODEs), •algebraic equations (AEs), •event handlingandrecurrence relations(sampled control). Object-oriented concepts are supported as a means of managing the complexity inherent to modern technical systems. Modelica can therefore be called an equation-based object- oriented (EOO) language. That term, coined by Xxxxxx [Bro10], nicely subsumes the central, distinguishing language characteristics. Equation-based:Behavior is described declaratively using mathematical equations. Object-oriented:Objects encapsulate behavior and constitute building blocks that are used to build more complex objects.
