# SimulationX

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Software application

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SimulationX Developer ESI ITI GmbH Stable release 4.3 / January 2022; 4 years ago (2022-01) Operating system Microsoft Windows Platform Intel x86 32-bit, x86-64 Available in English and German Type Simulation software License Proprietary commercial software Website SimulationX product page

**SimulationX** is a [CAE](/source/Computer-aided_engineering) software application running on [Microsoft Windows](/source/Microsoft_Windows) for the physical [simulation](/source/Simulation) of technical systems. It is developed and sold by [ESI Group](/source/ESI_Group).[1]

## History

In the mid 1980s, [VEB](/source/Volkseigener_Betrieb) Mikromat in [Dresden](/source/Dresden) ([Germany](/source/Germany)) developed a program for [MS-DOS](/source/MS-DOS) to design controlled feed axis systems and to perform hydraulic calculations. In 1993, ITI GmbH, founded by former Mikromat employees in 1990, introduced a simulation tool for Microsoft Windows designed for [dynamic](https://en.wiktionary.org/wiki/dynamic) calculations of drive systems: ITI-SIM 1. With the release of ITI-SIM 2 in 1995, the software also allowed for [fluid](/source/Fluid) simulations. In 2002, the newly developed application SimulationX, based on the object-oriented description language [Modelica](/source/Modelica), was introduced to the market. By the year 2007, ITI-SIM (then in version 3.8) had been completely replaced by SimulationX.

Since the beginning of 2016, ITI belongs to the ESI Group and now operates under the name ESI ITI GmbH.

## Modeling and Functionality

Simulation models are created on the basis of a [discrete](/source/Discretization) network approach. That means the system is broken down into [logical](/source/Logic) parts which are linked through specific connections. These sub-systems are represented by preconfigured or custom model elements organized in domain-specific and custom model libraries. The sub-models are then [parameterized](/source/Parameter) and connected with each other. Models can be created either through the graphical user interface or by using Modelica command lines.

## Libraries

Model [libraries](/source/Library_(computing)) can be obtained as modular packages from the software producer. There are various libraries available with basic models for the corresponding physical domains as well as libraries with advanced models for specific applications and industries. Depending on the objective, the user can choose from [1D](/source/One-dimensional_space), [2D](/source/Two-dimensional_space) and [3D](/source/Three-dimensional_space) model elements with respect to the modeling, simulation and parameterization requirements. Modelica-based third-party and custom-built libraries can also be integrated into SimulationX.

SimulationX libraries include:

- *Signal blocks*: General Signal Blocks, Signal Sources, Linear Signal Blocks, Non-Linear Signal Blocks, Time-Discrete Signal Blocks, Special Signal Blocks, Switches

- *[Mechanics](/source/Mechanics)*: Mechanics 1D (rotary, linear), Planar Mechanics, [Multibody systems](/source/Multibody_system), CAD Import via [STL](/source/STL_(file_format))

- *[Power Transmission](/source/Power_transmission)*: Motors and Engines, Couplings and Clutches, Transmission Elements, Planetary Structures

- *[Electrical Engineering](/source/Electrical_engineering) and [Electronics](/source/Electronics)*: Electronics (Analog), Magnetics, Electric Motors, Stepping Motors

- *[Fluid Power](/source/Fluid_power) and [Thermodynamics](/source/Thermodynamics)*: Hydraulics (pressure source, tank, volume, differential cylinder, throttle, valves, plunger cylinder, constant and variable), pneumatics (gases and mixtures), Thermal-Fluid (single phase with liquids and gases, two-phase with coolants, refrigerants, NIST, water, wet air, gas mixtures)

- *[Torsional](/source/Torsional) [Vibration Analysis](/source/Vibration#Vibration_analysis)*: Inertia, Torques, Dampers, Couplings, Gears, Sensors

- *Special: [Subsea](/source/Subsea) Library*: Subsea Hydraulics, Subsea Electrics, Offshore Handling

## Modelica

SimulationX supports the [Modelica](/source/Modelica) modeling language to simulate individually created, realistic (sub-)models.[2] Models of the Modelica Standard Library or the ones purely based on the Modelica language definition can be executed.

## Interfaces

SimulationX provides open, comprehensive CAx-interfaces to external programs for different purposes and applications, e.g. [CAE](/source/Computer-aided_engineering) (VehicleSim (CarSim, BikeSim, TruckSim)), [CAD](/source/Computer-aided_design) ([Solid Edge](/source/Solid_Edge), [Unigraphics / NX](https://en.wikipedia.org/w/index.php?title=Unigraphics_/_NX&action=edit&redlink=1), [SolidWorks](/source/SolidWorks), [Creo Elements/Pro](/source/PTC_Creo_Elements%2FPro), [Autodesk Inventor](/source/Autodesk), [CATIA V5](/source/CATIA)), [CAM](/source/Computer-aided_manufacturing), Computer-aided optimization (e.g. Isight, [modeFRONTIER](/source/ModeFRONTIER), [Optimus](/source/Optimus_platform), [optiSLang](/source/OptiSLang), [OptiY](/source/OptiY)), [FEA/FEM](/source/Finite_element_method) ([Abaqus](/source/Abaqus), [Ansys](/source/Ansys), [COMSOL Multiphysics](/source/COMSOL_Multiphysics), [MSC](/source/MSC_Software) [Nastran](/source/Nastran)), [CFD](/source/Computational_fluid_dynamics). Co-Simulation provides a general interface which can be used to link SimulationX to CAE tools with predefined setups for particular realizations ([MSC.Adams](/source/MSC_Software), SIMPACK, [MATLAB](/source/MATLAB)/[Simulink](/source/Simulink), Fluent, Cadmould etc.). The coupling ensures the data exchange between the tools and the simulation software. Tools for a holistic structural and system analysis (equilibrium computation, natural frequencies, vibration modes, input-output analysis) and for linking a simulation model to the databases are available. A [COM](/source/Component_Object_Model) interface allows communication between SimulationX and other Windows applications for user-defined batch runs, [embedded simulation](/source/Embedded_software), parameter studies, or optimizations.

Code-Export features support the generation of C [source code](/source/Source_code) for seamless model integration, [Hardware-in-the-loop](/source/Hardware-in-the-loop_simulation) (HiL) applications and Rapid Control Prototyping, Functional Mock-up [Virtual Machine](/source/Virtual_machine). Throughout all stages of modern system design processes, engineers and scientists can work with a variety of seamlessly integrated tools. The connection of SimulationX to [real-time](/source/Real-time_computing) testing and simulation platforms such as [LabVIEW](/source/LabVIEW), [NI VeriStand](/source/National_Instruments), [dSPACE](/source/DSPACE_GmbH), [ETAS LABCAR](/source/ETAS_Group#LABCAR), and SCALE-RT heavily increases the productivity in the design cycle and shortens time-to-market of new products.

SimulationX supports the creation and import of Functional Mock-up Units defined by the [Functional Mock-up Interface](/source/Functional_Mock-up_Interface) standard (development started by the [MODELISAR](/source/MODELISAR) project). Standardized interfaces facilitate the platform-independent exchange of simulation models and increase the flexibility in the connection of external simulation tools and models.

## Industry usage

SimulationX is used for designing, modeling and analyzing the dynamic behavior of complex mechatronic systems as well as for virtual tests in many industries, research and education including the [automotive](/source/Automotive) sector,[3] [railway](/source/Railway) and [shipbuilding](/source/Shipbuilding), [heavy machinery](/source/Heavy_machinery) and [mining](/source/Mining), [power generation](/source/Power_generation) and [building technology](/source/Building_technology), [aerospace](/source/Aerospace) and [defense](/source/Defense_industry), [mechanical engineering](/source/Mechanical_engineering), [medical engineering](/source/Medical_engineering), oil and gas, precision instruments and [home appliances](/source/Home_appliances) as well as [consumer electronics](/source/Consumer_electronics).

## Academic usage

SimulationX is widely used in education and research worldwide.[4]

## See also

- [20-sim](/source/20-sim)

- [Dymola](/source/Dymola)

- [EcosimPro](/source/EcosimPro)

- [LMS Imagine.Lab Amesim](/source/LMS_Imagine.Lab_Amesim)

- [Modelica](/source/Modelica)

- [MapleSim](/source/MapleSim)

- [Wolfram SystemModeler](/source/Wolfram_SystemModeler)

- [Simulink](/source/Simulink)

## References

1. **[^](#cite_ref-1)** ["HomePage | ESI Group"](https://www.esi-group.com/products/system-simulation).

1. **[^](#cite_ref-2)** [Modelica Newsletter 01/2013](https://www.modelica.org/publications/newsletters/2013-1)

1. **[^](#cite_ref-3)** Mahmud, Khizir; Town, Graham E. (June 2016). "A review of computer tools for modeling electric vehicle energy requirements and their impact on power distribution networks". *Applied Energy*. **172**: 337–359. [doi](/source/Doi_(identifier)):[10.1016/j.apenergy.2016.03.100](https://doi.org/10.1016%2Fj.apenergy.2016.03.100).

1. **[^](#cite_ref-4)** [Textbook Dynamics of Machinery](https://www.springer.com/engineering/book/978-3-540-89939-6), [Dresig, Hans](/source/Hans_Dresig), Holzweißig, Franz, 2010, With CD-ROM., [ISBN](/source/ISBN_(identifier)) [978-3-540-89939-6](https://en.wikipedia.org/wiki/Special:BookSources/978-3-540-89939-6)

## External links

- [Official website](http://www.simulationx.com)

- [Homepage of the society of automotive engineers](http://www.sae.org/)

- [SimulationX Global Subsea Center](https://www.offshore-technology.com/contractors/project/agito/)

- [Homepage of Functional DMU Fraunhofer Gesellschaft](https://web.archive.org/web/20100312022223/http://www.functionaldmu.org/)

- [Functional Mock-up Interface](http://www.functional-mockup-interface.org)

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