Open Source modelling and simulating tool for Simantics.
Simantics System Dynamics is a ready-to-use system dynamics modelling and simulation software application for understanding different organizations, markets and other complex systems and their dynamic behavior. Simantics System Dynamics is used for modeling and simulating large hierarchical models with multidimensional variables. The models are created in a traditional way with stock & flow diagrams and causal loop diagrams. Simulation results and the model structure can be analyzed with different visual tools
Import and Export features can be used, for example, to create different versions, create backups or to transport your modelling assets like models or modules to another database.Read more
The Simantics platform has server-client architecture with a semantic ontology based modelling database and Eclipse framework based client software with plugin interface.Read more
Simantics System Dynamics is developed by VTT and Semantum. The package is provided as open source software and also it is completely free to download and use.Download
System dynamics model is generally understood as the model configuration. In this tool, the model contains also other components such as
Spreadsheets are an easy way to import and manage parameter values.
Experiments can exist with different configurations, for example different initial values for some parameters.
Modules are defined just like the basic model configuration, but the module component hides the actual configuration.
Modelica provides a convenient way to use functions in your models. You can create your own functions, export and import complete function libraries and share function libraries to be used in all of your models.
Charts can be used and re-used in various places. The four types of custom charts (line, sensitivity, bar, and pie charts) provide model developers means for examining and developing their models and communicating the simulation results to others.
Diagram is the area where you will graphically modify your model. Diagrams are built from elements that can be dragged from Symbols view or populated using shortcut keys.
Symbols view (on the left) is used for dragging elements to diagrams.
Simantics System Dynamics allows the use of several alternative solvers provided by OpenModelica, e.g.
OpenModelica is currently the main simulation environment behind the tool and all functionalities are supported with OpenModelica.
Alternatively to OpenModelica, an internal custom Modelica solver is included in Simantics System Dynamics. The custom solver is currently at an experimental state, and thus all functionalities of the tool are not yet supported, e.g., only the basic experiment can be run with it. The advantage of the custom solver is, however, that simulation is usually a lot faster than with OpenModelica. Try out yourself which solver suits best for your needs.
Simantics System Dynamics software updated to version 1.35.0 brings the product up-to-date with the latest Simantics versions.
Simantics System Dynamics software is currently available for Windows platform. Choose the correct product and click Download.
Simantics is an open source software platform, licensed under Eclipse Public License EPL. More information about licensing see Simantics Licensing
To install the application, download the installer for your platform.
Install the program to a directory without spaces (limitation inherited from OpenModelica)..
Run the application through the launcher generated by the installer.
Follow the Tutorial for BEGINNERS or for ADVANCED users.
Remember to check out our discussion forum