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ModelicaTutorial

Modelica libraries used in the exercises of the OpenModelica tutorials (Introduction to Object Oriented Modeling, Simulation, Debugging and Dynamic Optimization with Modelica using OpenModelica).

Library Exercise
Debugging.mo Equation-based model debugger: chattering (Debugging.Chattering) and solver failures (Debugging.SolverFailure)
DynamicOptimization.mo Dynamic optimization with optimize()

Both use the Modelica Standard Library 4.1.0.

Debugging.Chattering.ChatteringEvents1 stops at t = 0.50001, just after the chattering starts at t = 0.5. The chattering is detected and the transformational debugger can be opened without stopping a crawling simulation by hand. Set Stop Time to 1 in the simulation setup to see the simulation crawl.

Where to get them

  • OpenModelica includes this repository as the submodule OMCompiler/Examples/ModelicaTutorial and installs the libraries to share/doc/omc/testmodels.
  • The OpenModelica package manager indexes them, so installPackage(Debugging) or the package manager dialog in OMEdit installs them, also in the web OMEdit at https://playground.openmodelica.org/.
  • The tutorial exercises in the browser: https://playground.openmodelica.org/tutorial/

License

Copyright (c) 1998-2026, Open Source Modelica Consortium (OSMC) and contributors. BSD 3-Clause License, the same as the Modelica Standard Library, see LICENSE.