| 1. |
- Fritzson, Peter, 1952-, et al.
(författare)
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OpenModelica - A Free Open-Source Environment for System Modeling, Simulation, and Teaching
- 2006
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Ingår i: Proceedings of the2006 IEEE International Conference on Control Applications (CCA)2006 IEEE Conference on Computer-Aided Control Systems Design (CACSD)2006 IEEE International Symposium on Intelligent Control (ISIC). - Munich, Germany : IEEE. - 0780397975 - 0780397975 ; , s. 1588-1595
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Konferensbidrag (refereegranskat)abstract
- Modelica is a modern, strongly typed, declarative, and object-oriented language for modeling and simulation of complex systems. This paper gives a quick overview of some aspects of the OpenModelica environment - an open-source environment for modeling, simulation, and development of Modelica applications. An introduction of the objectives of the environment is given, an overview of the architecture is outlined and a number of examples are illustrated.
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| 2. |
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| 3. |
- Eriksson, Henrik, et al.
(författare)
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3D Animation and Programmable 2D Graphics for Visualization of Simulations in OpenModelica
- 2008
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Ingår i: Proceedings from the 49th Scandinavian Conference on Simulation and Modeling, 2008. - www.scansims.org : Scandinavian Simulation Society. - 825794632X - 9788257946326 ; , s. 10-
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Konferensbidrag (refereegranskat)abstract
- This paper describes recent work on visualization of simulation results from simulating Modelica models in Open-Modelica. A new 3D graphics package with interactive animation and a new flexible programmable 2D graphicshave been added to OpenModelica. The 2D graphics package provides very flexible usage, either directly from asimulation, from the electronic book client OMNotebook, or programmable graphics, called directly from aModelica model.
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| 4. |
- Fritzson, Peter, 1952-, et al.
(författare)
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Comment- and Indentation Preserving Refactoring and Unparsing for Modelica
- 2008
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Ingår i: Proceedings of the 6th International Modelica Conference, March 3rd-4th, 2008, University of Applied Sciences Bielefeld, Bielefeld, Germany. - Modelica Website : Modelica Association. ; , s. 657-665
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Konferensbidrag (refereegranskat)abstract
- In this paper we present a strategy for comment- and indentation preserving refactoring and unparsing for Modelica. The approach is general, but is currently being implemented for Modelica in the OpenModelica environment. We believe this to be one of the first unparsing approaches that can preserve all user-defined indentation and comment information, as well as fulfilling the principle of minimal replacement at refactorings.
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| 5. |
- Fritzson, Peter, 1952-, et al.
(författare)
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MetaModelica – A Symbolic-Numeric Modelica Language and Comparison to Julia
- 2019
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Ingår i: Proceedings of the 13th International Modelica Conference, Regensburg, Germany, March 4–6, 2019. - Linköping : Linköing University Electronic Press. - 9789176851227
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Konferensbidrag (refereegranskat)abstract
- The need for integrating system modeling with advanced tool capabilities is becoming increasingly pronounced. For example, a set of simulation experiments may give rise to new data that are used to systematically construct a series of new models, e.g. for further simulation and design optimization. Such combined symbolic-numeric capabilities have been pioneered by dynamically typed interpreted languages such as Lisp and Mathematica. Such capabilities are also relevant for advanced modeling and simulation applications but lacking in the standard Modelica language. Therefore, this is a topic of long-running design discussions in the Modelica Design group. One contribution in this direction is MetaModelica, that has been developed to extend Modelica with symbolic operations and advanced data structures, while preserving safe engineering practices through static type checking and a compilation-based efficient implementation. Another recent effort is Modia, implemented using the Julia macro mechanism, making it dynamically typed but also adding new capabilities. The Julia language has appeared rather recently and has expanded into a large and fast-growing ecosystem. It is dynamically typed, provides both symbolic and numeric operations, advanced data structures, and has a just-intime compilation-based efficient implementation. Despite independent developments there are surprisingly many similarities between Julia and MetaModelica. This paper presents MetaModelica and its environment as a large case study, together with a short comparison to Julia. Since Julia may be important for the future Modelica, some integration options between Modelica tools and Julia are also discussed, including a possible approach for implementing MetaModelica (and OpenModelica) in Julia.
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| 6. |
- Fritzson, Peter, 1952-, et al.
(författare)
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The OpenModelica Integrated Environment for Modeling, Simulation, and Model-Based Development
- 2020
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Ingår i: Modeling, Identification and Control. - Kristiansand, Norway : Norsk Forening for Automatisering. - 0332-7353 .- 1890-1328. ; 41:4, s. 241-295
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Tidskriftsartikel (refereegranskat)abstract
- OpenModelica is a unique large-scale integrated open-source Modelica- and FMI-based modeling, simulation, optimization, model-based analysis and development environment. Moreover, the OpenModelica environment provides a number of facilities such as debugging; optimization; visualization and 3D animation; web-based model editing and simulation; scripting from Modelica, Python, Julia, and Matlab; efficient simulation and co-simulation of FMI-based models; compilation for embedded systems; Modelica-UML integration; requirement verification; and generation of parallel code for multi-core architectures. The environment is based on the equation-based object-oriented Modelica language and currently uses the MetaModelica extended version of Modelica for its model compiler implementation. This overview paper gives an up-to-date description of the capabilities of the system, short overviews of used open source symbolic and numeric algorithms with pointers to published literature, tool integration aspects, some lessons learned, and the main vision behind its development.
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| 10. |
- Johansson, Olof, 1964-, et al.
(författare)
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Engineering Design Tool Standards and Interfacing Possibilities to Modelica Simulation Tools
- 2006
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Konferensbidrag (refereegranskat)abstract
- This paper briefly describes some international standards used for engineering design tools that precede simulation in the product development process. Very much information in such design tools can be reused when developing Modelica simulation models. Examples are product structures, component parameters, and component connection information. The Modelica Standard Library (MSL) with the latest version 2.2.1 has grown significantly the last years. An analysis of the contents of MSL is provided, and a classification method described to ease the work of mapping structures, component parameters and connections in engineering design tools such that their information content can be reused for development of Modelica simulation models. ModelicaXML has been upgraded to support Modelica 2.2, and is briefly described as one of the most promising intermediate formats for exchange of models between engineering design tools and Modelica simulation tools.
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