Modelica On The Web

Model-Driven Engineering (MDE) refers to the systematic use of models as first class entities throughout the software development life cycle. Over the last few years, many MDE technologies have been conceived for developing domain specific modeling languages, and for supporting a wide range of model management activities. However, existing modeling platforms neglect a number of important features that if missed reduce the acceptance and the relevance of MDE in industrial contexts, e.g., the possibility to search and reuse already developed modeling artifacts, and to adopt model management tools as a service. In this paper we propose MDEForge a novel extensible Web-based modeling platform specifically conceived to foster a community-based modeling repository, which underpins the development, analysis and reuse of modeling artifacts. Moreover , it enables the adoption of model management tools as software-as-a-service that can be remotely used without overwhelming the users with intri...

Modeling, Identification and Control: A Norwegian Research Bulletin, 2020

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.

Proceedings of the 7 International Modelica Conference Como, Italy, 2009

The uses, needs, and requirements of a text generation template language for Modelica are discussed. A template language may allow more concise and readable programming of the generation of textual models, program code, or documents, from a structured model representation such as abstract syntax trees (AST). Applications can be found in generating simulation code in other programming languages from models, generation of specialized models for various applications, generation of documentation, web pages, etc. We present several template language designs and some usage examples, both C code generation and Modelica model generation. Implementation is done in the OpenModelica environment. Two designs are currently operational.

Journal Européen des systèmes …, 2001

ABSTRACT. Modelica is an object-oriented language for modeling of large and heterogeneous physical systems. Typical applications include mechatronic models in robotics, automotive and aerospace applications involving mechanical, electrical, ...

2005

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.

Proceedings from the 8th International Modelica Conference, Technical Univeristy, Dresden, Germany, 2011

This contribution introduces Converge, a specialized Version Control System client application designed purely for Modelica. Conventional VCS clients and diff tools cannot inform the user what the effect of a single edit has on the model as a whole. Converge compares selected revisions of a model, loading the Modelica code directly from the VCS repository. This paper presents examples of Modelica code where an edit that appears significant in a conventional diff tool can be shown as not so, and an edit that appears insignificant in a conventional diff tool actually has significant changes to the resulting model.

A new language called Modelica for physical modeling is developed in an international effort. The main objective is to make it easy to exchange models and model libraries. The design approach builds on noncasual modeling with true ordinary differential and algebraic equations and the use of object-oriented constructs to facilitate reuse of modeling knowledge. There are already several modeling language based on these ideas available from universities and small companies. There is also significant experience of using them in various applications. The aim of the Modelica effort is to unify the concepts and design a new uniform language for model representation. The paper describes the effort and gives an overview of Modelica.

2002

MathModelica is an integrated interactive development environment for advanced system modeling and simulation. The environment integrates Modelica-based modeling and simulation with graphic design, advanced scripting facilities, integration of program code, test cases, graphics, documentation, mathematical type setting, and symbolic formula manipulation provided via Mathematica. The user interface consists of a graphical Model Editor and Notebooks. The Model Editor is a

2005

The need for integrating system modeling with 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. Using models to construct other models is called meta-modeling or meta-programming.

Proceedings from the 8th International Modelica Conference, Technical Univeristy, Dresden, Germany, 2011

This paper describes the first open source Modelica graphic editor which is integrated with interactive electronic notebooks and online interactive simulation.