Dymola 2021x: The Latest Version of the Dynamic Modeling Laboratory
How to Download and Install Dymola 2021x
Dymola, Dynamic Modeling Laboratory, is a complete tool for modeling and simulation of integrated and complex systems for use within automotive, aerospace, robotics, process and other applications. In this article, we will show you how to download and install the latest release of Dymola, version 2021x, and what are the main features and benefits of this powerful software.
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What is Dymola and why use it?
Dymola overview
Dymola is a complete environment for model creation, testing, simulation and post-processing. It uses the Modelica language, an open standard for describing physical systems, to enable you to rapidly solve complex multi-disciplinary systems modeling and analysis problems. Dymola supports the Functional Mock-up Interface (FMI) standard, which allows any modeling tool to generate C code or binaries representing a dynamic system model which may then be seamlessly integrated in another modeling and simulation environment.
Key advantages of Dymola
Some of the key advantages of using Dymola are:
It allows you to combine mechanical, electrical, electronic, hydraulic, thermal, control, electric power or process components in a single systems model.
It leverages a comprehensive set of domain specific libraries that are developed by domain specialists and validated by industry partners.
It offers excellent capabilities to interface with other software tools and simulation environments using FMI and other standards.
It provides advanced simulation and linearization features that can handle stiff and hybrid systems with high accuracy and efficiency.
It enables you to create custom model libraries and components in Modelica using graphical or textual editing modes.
It supports model configuration management, model reduction, system calibration, hardware-in-the-loop (HIL) simulation, real-time simulation, and more.
Modelica libraries and FMI support
Dymola comes with the Modelica Standard Library (MSL), which contains over 1600 components covering various physical domains such as mechanics, electrical, thermal, fluid, media, blocks, state machines, etc. In addition, you can use many other Modelica libraries that are available from Dassault Systèmes or third-party vendors. Some examples are:
LibraryDescription
Modelica Buildings LibraryA free open-source library for modeling building energy and control systems.
Modelica Fluid LibraryA library for modeling one-dimensional thermo-fluid flow in complex pipe networks.
Modelica Vehicle Dynamics LibraryA library for modeling vehicle dynamics including chassis, suspension, steering, brakes, tires, etc.
Modelon Base LibraryA library that extends the MSL with additional components and features for various domains.
Modelon Battery LibraryA library for modeling battery cells, modules, packs, thermal management systems, etc.
Modelon Electric Power LibraryA library for modeling electric power systems including AC/DC networks, machines, converters, etc.
Modelon Fuel Cell LibraryA A library for modeling fuel cell systems including stacks, reformers, humidifiers, etc.
Dymola also supports the FMI standard, which enables you to import and export models as Functional Mock-up Units (FMUs). FMUs are self-contained models that can be exchanged and integrated with other tools and platforms. Dymola can import FMUs for co-simulation or model exchange, and export FMUs for co-simulation, model exchange, or source code generation.
How to get Dymola 2021x?
System requirements
To run Dymola 2021x, you need a computer with the following minimum specifications:
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Dymola Systems Simulation Designer web application for cloud simulation of Dymola models
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Dymola Referential for technical overview and summary of benefits of Dymola, Modelica, and FMI
Operating system: Windows 10, 8.1, or 7 (64-bit recommended)
Processor: Intel Core i5 or equivalent
Memory: 8 GB RAM
Disk space: 4 GB for installation, plus additional space for models and libraries
Graphics: OpenGL 3.3 compatible graphics card with at least 1 GB of memory
Internet connection: Required for license activation and online documentation
License options
Dymola 2021x is available in different license options depending on your needs and budget. You can choose from:
Commercial license: A full-featured license for commercial use, with access to all libraries and features.
Educational license: A discounted license for academic use, with access to most libraries and features.
Student license: A free license for personal use by students, with access to a limited set of libraries and features.
Trial license: A temporary license for evaluation purposes, with access to all libraries and features.
Download link and installation steps
To download Dymola 2021x, you need to register on the Dassault Systèmes website and request a download link. You will receive an email with the link and your license information. You can then follow these steps to install Dymola 2021x on your computer:
Download the Dymola 2021x installer from the link provided in the email.
Run the installer and follow the instructions on the screen.
Enter your license information when prompted.
Select the libraries and features you want to install.
Wait for the installation to complete.
Launch Dymola 2021x from the Start menu or desktop shortcut.
What's new in Dymola 2021x?
Modelica Standard Library 4.0.0
Dymola 2021x includes the latest version of the Modelica Standard Library (MSL), which is version 4.0.0. This version introduces several changes and improvements, such as:
New components and models for electrical machines, magnetic fields, heat transfer, media, state machines, etc.
Revised components and models for mechanical systems, fluid systems, blocks, etc.
New icons and graphics for better visualization and usability.
New annotations and attributes for better documentation and compatibility.
New functions and operators for better performance and functionality.
Interface improvements
Dymola 2021x also includes some interface improvements that make it easier and more convenient to use. Some of these are:
A new dark theme option that reduces eye strain and enhances contrast.
A new search bar that allows you to quickly find components, models, libraries, variables, etc.
A new toolbar that provides quick access to common commands and functions.
A new model browser that shows the structure and properties of your models in a tree view.
A new plot window that shows the simulation results in a more interactive and customizable way.
FMU import and export features
Dymola 2021x also adds some new features for importing and exporting FMUs, such as:
A new option to export FMUs with encrypted source code that can be protected by a password or a license file.
A new option to export FMUs with embedded documentation that can be viewed by other tools or platforms.
A new option to import FMUs with external resources that can be accessed by the FMU during simulation.
A new option to import FMUs with variable step size solvers that can adapt to the dynamics of the system.A new option to import FMUs with logging capabilities that can record the simulation events and messages.
Simulation and post-processing enhancements
Dymola 2021x also offers some simulation and post-processing enhancements that improve the quality and efficiency of your modeling and analysis. Some of these ar