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20-sim is commercial modeling and simulation program for multidomain dynamic systems, which is developed by Controllab. With 20-sim models can be entered as equations, block diagrams, bond graphs and physical components. 20-sim is widely used for modeling complex multi-domain systems and the development of control systems. == Use == 20-sim supports four methods for modeling dynamic systems: iconic diagrams, block diagrams, bond graphs and equations and allows all of these methods to be used in one model. The package has advanced support for bond graph modeling, making it well known in bond graph communities. For modeling physical systems the package provides libraries for electrical systems, mechanical systems, hydraulics systems and thermal systems. For block diagrams, libraries comparable to those of Simulink, are provided. A feature of the software is the option to create models with differential equations and package them as block diagram elements or physical components. 20-sim models can be simulated using state of the art numerical integration methods. After checking and processing, models are directly converted into machine code, resulting in high speed simulations. Unlike Simulink, simulation results are shown in 20-sim in a separate window called the Simulator. The simulator is versatile: plots can be displayed horizontally and vertically as time and frequency based plots and 3D animations. 20-sim is self containing, i.e. no additional software is required and all toolboxes are included. Toolboxes are available for model building, time domain analysis, frequency domain analysis and controller design. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「20-sim」の詳細全文を読む スポンサード リンク
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