.BondLib.SystemDynamics

Information

The SystemDynamics library is designed as a graphical library for modeling mass and information flows in a continuous-time system using Prof. Jay Forrester's System Dynamics metaphor. Two separate and independent versions of this library had originally been created by Dr. Stefan Fabricius and by Prof. François Cellier and his students. These have now been merged into a single version that has furthermore been enhanced as well.

System Dynamics offers a fairly low-level graphical interface, not much different from a block diagram. The fact that continuous systems contain differential equations is hidden from the user by talking about levels, i.e., quantities that can accumulate (state variables), and rates, i.e., quantities that influence the accumulation and/or depletion of levels (state derivatives).

The System Dynamics modeling metaphor is widely used especially by researchers in the life sciences and social sciences.

References:

  1. Cellier, F.E. (1991), Continuous System Modeling, Springer-Verlag, New York, ISBN: 0-387-97502-0, 755p.
  2. Fisher, D.M. (2007), Modeling Dynamic Systems: Lessons for a First Course, 2nd Edition, ISEE Systems.
  3. Forrester, J.W. (1971), Principles of Systems, Pegasus Communications, 387p.

Corresponding Author:

Prof. Dr. François E. Cellier
Institut für Computational Science
ETH Zürich
ETH Zentrum CAB G82.1
CH-8092 Zürich
Switzerland

Phone: +41(44)632-7474
Fax: +41(44)632-1374
Email: FCellier@Inf.ETHZ.CH
URL: http://www.inf.ethz.ch/~fcellier/

Other Main Author:

Dr. Stefan Fabricius
PROMASIM GmbH
Dorfstr. 34
CH-8835 Feusisberg/SZ
Switzerland

Phone: +41(44)687-5015
Fax: +41(44)687-5016
Email: stefan.fabricius@promasim.ch
URL: http://www.promasim.com/

Release Notes:

Copyright (C) 2002-2006, Stefan Fabricius.
Copyright (C) 2007, François E. Cellier.

The ModelicaAdditions.SystemDynamics package is free software; it can be redistributed and/or modified under the terms of the Modelica license, see the license conditions and the accompanying disclaimer in the documentation of package Modelica in file "Modelica/package.mo".

Contents

NameDescription
 UsersGuideUser's Guide
 InterfacesConnectors and partial models of the System Dynamics methodology
 AuxiliaryAuxiliary elements of the System Dynamics methodology
 FunctionsFunctions of the System Dynamics methodology
 GroupersGroupers of the System Dynamics methodology
 LevelsLevels of the System Dynamics methodology
 RatesRates of the System Dynamics methodology
 SensorsSystem Dynamics sensors
 SourcesSources and sinks of the System Dynamics methodology
 IndustrialDynamicsFactory models
 PopulationDynamicsEcological models
 WorldDynamicsWorld models
 IntroductoryExamplesIntroductory example codes of the System Dynamics methodology
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