An approach to virtual-lab implementation using Modelica

Carla Martin-Villalba, Alfonso Urquia and Sebastian Dormido

Mathematical and Computer Modelling of Dynamical Systems, 2007, vol. 14, issue 4, 341-360

Abstract: A novel approach to the implementation of interactive virtual-labs is proposed. The virtual-lab is completely described in Modelica language and translated using Dymola. To achieve this goal, a systematic methodology to transform any Modelica model into a formulation suitable for interactive simulation has been developed. In addition, VirtualLabBuilder Modelica library has been programmed. This library contains a set of Modelica models of visual interactive elements (i.e. containers, animated geometric shapes and interactive controls) that allows easy creation of the virtual-lab view (i.e. the model-to-user interface). This approach has two strong points. Firstly, it allows taking advantage of the Modelica capabilities for multi-domain modelling and model reuse. In particular, existing Modelica libraries for modelling of physical systems can be reused to build the virtual-lab models. Secondly, VirtualLabBuilder library allows describing the virtual-lab view with Modelica, which facilitates its development, maintenance and reuse. The proposed approach is discussed in this manuscript and it is illustrated by means of the following case study: a virtual-lab describing the thermodynamic behaviour of a solar house. VirtualLabBuilder library can be freely downloaded from http://www.euclides.dia.uned .es/

Date: 2007
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DOI: 10.1080/13873950701846712

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