We are always looking for interesting combinations of libraries and good demonstrations of novel systems, we have many useful examples within our libraries demonstrating that. Such as the use of the hydrogen library with VeSyMA, as described in Theo’s blog post about a hydrogen bus model; or lots of...
Archive for category: Tech Blog
What are Your Library’s Dependencies?
The recent Dymola 2023x Refresh 1 release provides a number of new features and improvements. I’m going to talk about a new built-in function which you may have missed, getDependentLibraries, that I’ve been using to check our libraries’ dependencies. Modelica Library Dependencies There are many Modelica Libraries available, covering...
A rain water harvesting example
Water is scarce in many parts of the world, one way to reduce water usage is to collect the rain water runoff, typically from your roof. This rain water collecting is rain water harvesting and in this post a simple rain water harvesting model is created to estimate the...
Using physical connectors with an FMU
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...
Use of the Model Management Library
With the installation of Dymola there is the Model Management library, which allows users to be able to gain data about models and even create and modify models. This can be a very powerful and useful tool, if used correctly. This post will go through a couple of examples...
User Defined Variable Gravity in Dymola
A while back, I was asked by a customer how hard I thought it would be to create a simulation which utilizes a user defined variable gravity field within Dymola. I’m not quite sure what he wanted to do with it… maybe something acrobatic and cool like this? Anyway,...
Dynamic initialisation in Dymola of full vehicle models
If you are modelling complex systems, such as full vehicle models, then you will have seen that they can include large transient periods at the start of simulation, before settling to a steady state. Colloquially this is known as the “settling phase”. Excessive settling in a model can cause...
Documentation in Your Dymola Models
I spend a lot of time looking at Dymola models created by others, and a big factor in a model’s user friendliness is the quality of the documentation included. So in this blog post, I’m going to take a look at the documentation options available in Dymola. Documenting Code...
Improve performance by using different compilers in Dymola
Sometimes using a different C compiler can result in a model simulating faster, as described in this optimisation blog. In this post we look at how the different Windows compilers, Visual Studio, Visual Studio with Clang, MinGW and MinGW with Clang can be used to compile a Dymola model...
What can you get out of a detailed simulation? Taking a look at a Fuel Cell electric bus model
Last year as part of the 2022.1 release of the VehicleDemos library, Claytex added a Hydrogen Fuel Cell Electric (FCEV) bus model. Created out of the existing EV bus example, it showcased integrating models from the Hydrogen Library with VeSyMA vehicle models. Ambitiously, a high level of detail was...
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