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How to build an embedded graphical interface in Dymola

June 19, 2017

Written by: Maura Gallarotti – Project Engineer Dymola allows to create embedded graphical user interfaces thanks to the icon annotations. This blog post describes how to visualise in the diagram layer the transient processes with plots, tables and dynamic colouring. Figure 1: Cooling circuit transient animation. Figure 1 shows the GIF of a cooling circuit of an read more

Handling of Modelica Model’s Parameter Values in Dymola

June 8, 2017

Written by: Raees B. K. Parambu – project Engineer Abstract This article is designed to guide the user in handling or organising the parameter values of the top-level experimental models in their models. This blog post may be useful for those newcomers who wish to get an insight into different ways of storing and propagating parameter read more

VeSyMA – Engines Library

May 26, 2017

Written by: Alessandro Picarelli – Chief Engineer The VeSyMA – Engines library provides the necessary components for creating semi-empirical and predictive engine models. These models can then be used in standalone experiments (e.g. engine-on-dynamometer) or within vehicle model architectures. Modelling philosophy The library allows both MVEMs (Mean Value Engine Models) and CAREMs (Crank Angle Resolved read more

VeSyMA – Suspensions Library

May 19, 2017

Written by: David Briant – Project Engineer A recent addition to the Dassault Systemes Dymola portfolio is the Suspensions library, developed by Claytex, built on the platform of the VeSyMA Library. This library focuses on the development of suspension systems primarily for the investigation of vehicle handling, including road, driver and stability control models. The VeSyMA library read more

Idle speed control using Model-based sliding mode control

May 12, 2017

Written by: Xiaoran Han – Project Engineer Introduction Following the previous blog post, ‘Linearised Mean Value Engine Model-based Idle Control‘, which describes how to derive a linearised model of crank angle resolved engine for idle speed controller design, this article describes the design of a sliding mode controller based on the linearised model and shows simulation read more

Stability Analysis in Dymola – Part 3

May 5, 2017

Written by: Sas Harrison – Systems Engineer Introduction This article will explain the nature of a root-locus diagram and explain how to create one using the DYMOLA software. For students & researchers, we hope the article will open up possibilities to use DYMOLA as the modular, acausal & smart, explicit-analysis software of choice, for control(ler) design & read more

FMI Blockset for Excel

April 23, 2017

Written by: Vesel Haxha – Senior Developer The FMI Blockset for Excel allows FMUs to be simulated from within Microsoft Excel. It is a Claytex in-house built tool and provides Add-ins for Microsoft Excel written in .Net. The FMI Blockset for Excel is compliant with the FMI 2.0 Co-simulation interface and it consists of: FMI Blockset shown in read more

VeSyMA – Powertrain Library

April 10, 2017

Written by: Romain Gillot – Project Engineer The VeSyMA – Powertrain library (also known as “PTDynamics” library) is a library developed by Claytex for modelling rotating MultiBody systems, mainly automotive powertrains. It is built on the VeSyMA library and is fully compatible with the Modelica Standard and VehicleInterfaces libraries. The purpose of this library is to provide read more

VeSyMA Library

April 3, 2017

Written by: Theodor Ensbury – Project Engineer ‘Building on the Modelica solutions we have developed over the past 10 years, Claytex has created VeSyMA. This is a new platform for Vehicle Systems Modelling and Analysis created using Modelica and available for Dymola.’ Comprised of top-level and sub-system templates and interfaces, the VeSyMA library from Claytex is the cornerstone read more

Momentum balance implementation in Dymola

March 27, 2017

Written by: Maura Gallarotti – Project Engineer When starting to work on fluids in Dymola, it is of paramount importance to build base classes where the momentum, energy and mass balances are performed, in order to have a common base class for several models and a strong foundation to build your own library. A good starting read more

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