The Modelica language and Dymola are typically used to simulate complex systems. These system models are constructed from many smaller component and subsystem models, in a hierarchical structure with multiple levels. So searching code to find where variables or parameters are defined in a complex model can appear difficult,...
We recently conducted a technical investigation into the systems modelling approach to train simulation. This blog post will cover what was created and outline the capabilities and next steps that it could be expanded upon. Basis of the library We used the VeSyMA library as a base, this provided...
The Dymola solver implements events that may be in a model to allow it to solve in an accurate way. This post has a closer look at how this is implemented. What is an event? When discrete behaviour occurs in a model an event is generated, or to say...
It’s often tempting with systems modelling to want to reach a solution as quickly as possible, effectively “throwing” all the components together, parameterising and simulating the scenario of interest and getting the results we need. However, doing this is generally more time consuming than taking a steadier approach. The...
We have written a number of blog posts on the topic of regression testing Modelica libraries to ensure model modifications don’t have undesired effects on the simulation results. In this blog post, I’m going to take a look at another library that could help you do this, the Testing...
Testing of system models coupled to autonomous and human operators is something we do a lot of at Claytex. The system models need to be both representative of the characteristics and behaviour of the real world components, in addition to being fast and robust enough to simulate with minimal...
Global connectors can be used to determine a cumulative amount of a model
In previous blog posts, we have discussed the need for regression testing when building model libraries. With no off-the-shelf tools available, Claytex have developed our own tools for this task. One of them, the RegressionTest tool, is designed to be used as an integral element of a library development...
This blog post will introduce newcomers to the difference between using co-simulation FMUs (Functional Mock-up Units) and Model Exchange FMUs. FMI – Functional Mock-up Interface FMU – Functional Mock-up Unit (a model, for example, which has been wrapped within the Functional Mock-up Interface). For more information on FMI please...
A significant benefit of modelling with the Modelica language is the ease with which you can reuse existing models and customise their parametrisation to create your own simulations. However sometimes a model you wish to use may have parameter modifications that do not suit the application you are modelling....
Got a question? Just fill in this form and send it to us and we'll get back to you shortly.
© Copyright 2010-2023 Claytex Services Ltd All Rights Reserved