Previously on the Claytex Tech blog, we have deconstructed the Simulation log, explaining what each of the quantities identified within it relates to. But what about the Translation log? What is it? What do the quantities described there actually relate to? And more importantly, how can I use the...
When a model is translated, warnings may be present in the translation log. One of the frequently occurring warnings is the Redeclaration requires a subtype warning, this post looks at how to fix this issue. Why does this warning occur? The Redeclaration requires a subtype warning occurs when a...
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,...
Integrators can sometimes appear to ignore the input value, acting as if it did not change. Here, a model is investigated for the purpose of understanding how the solver works and to know how to modify the model or settings so that the model solves accurately. A simple model...
A while ago I wrote a post on the Dymola setup files used to control the Dymola settings, Dymola Setup – Where Is It?; from this I was told about an interesting new feature from Dymola 2021 which allows you to use several different Dymola setups on the same...
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...
If you’ve been using Dymola for a while you will have come across annotations, as they accompany almost every model placed onto the diagram layer. Annotations can be used in any element definition, including parameters, instances, and the whole model. But they can be used to make your models...
Dymola, is an extremely powerful tool and also a complex beast at heart. A vast array of features, user customisable settings, options and flags comprise the simulation environment. Sometimes, this means that a model can run perfectly well on one person’s machine, but not quite on another person’s machine...
I was asked this question a few years ago: “What’s the point of writing a model using an acausal modelling language if when it is compiled it ends up as procedural code?”. The “point” is exactly what happens when the acausal model is reformulated into procedural code. There-in lies...
In the 2022 season, NASCAR will undergo the largest technological change the sport has seen in decades. Gone will be hallmark items such as live axle “truck arm” rear suspensions, split spring damper double wishbone front suspensions, Pitman arm steering systems, Detroit locker differentials and H-pattern gearboxes. Winds of...
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