Dynamic simulation model examples

These Java classes realize some simple dynamic simulation models.

Software requirements: Java Development Kit 1.6 or higher. The framework is kept simple and does not require any third-party components.

Basic modeling approaches

• Difference equation based simulation
• Cellular Automata referring to discrete state-sets
• Cellular elevation grid (still experimental)
• Simple circuit analysis (node voltage analysis)
• Simple agent-based evolutionary example
• Discrete event-based simulation (event queues)
• Markov chains

Example applications

Find the executable samples in the package de.hsbo.geo.simsamples.applications, e.g.

• Simulation of simple physical systems described by differential equations (numerical solution): Bouncing ball, Mass-spring-damper system;
• Simple model showing demographic development (population pyramid) controlled by birth and mortality rates;
• Simple predator-prey system (Lotka-Volterra model);
• Simple population dynamics (Verhulst model and a cellular population development model);
• "Game of Life" as prominent Cellular Automaton;
• Cellular elevation grid examples (evolutionary optimum finding algorithm, simple erosion model);
• Simple transient circuit simulation (step response of a resistor-capacitor-element);
• Simple Markov models for movements in geographic space;
• Galton-Watson population model.

Visualization

Simulation results will be shown in the command-line. Time series can easily be copied to the clipboard and thus be pasted to Excel or other applications. For some of the applications, interactive X3DOM visualizations can be generated.

License information

See the 'LICENSE'-file.

Contact

Benno Schmidt, Bochum University of Applied Sciences, Department of Geodesy, Lennershofstr. 140, D-44801 Bochum