This post has a look at how to interface with FMU blocks that make use of physical connectors. In this blog a simple electrical circuit is split into two FMUs that interface with electrical connectors. What is a physical connector? A connector that could be found on a physical...
Tag Archive for: FMI
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...
Do you really need detailed knowledge of every component in your system and how to model each component in order to successfully simulate the system? In this blog post I’m going to consider this question, and how the existing Modelica libraries that Dymola supports affect the answer. One thing...
Calculate partial derivatives of a Modelica model in Dymola.
The COVID-19 pandemic has seen demand for simulation go stratospheric, says Claytex’s Managing Director Mike Dempsey. “People are turning to simulation more than they ever have done. It’s not as easy to go and take a car out and do some tests on the public road or around a...
This post describes how to modify the windows setup so double clicking on a .fmu file opens it in Windows explorer as if it were a zip file. This post is based on ‘How to register a new zip file extension on windows 10‘ with minor modifications to work...
In my previous entry on the Claytex blog post, I explained how to export FMUs for Co-Simulation with inline integration settings. For most users, this would suffice, however for users wishing to export source code CoSim FMUs with Inline Integration, the methodology required is slightly different. At first glance,...
Model export is a commonly used function of Dymola. Exporting FMUs using the FMI interface is one of the most popular options, as it enables users to utilize the in-built FMI specified functionality for parametrization, time integration and other functions. Even though FMI was primarily developed to promote model...
This blog post looks at exporting models as FMUs containing string parameters and modifying those string parameters in the FMU before simulating. Process for creating FMUs with string parameters and modifying these strings The basic instructions for creating an FMU containing modifiable string parameters are below: Make sure the...
Dymola 2019 is now out and there are many new features that have been added to this new release. More information on these can be found in the official Dymola 2019 Release Notes. DAE mode for more efficient simulation of large models Improved initial guesses for equations in the...
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