A space for simulation related technical resources and discussions.
Data Preparation and Format Conversion Now that I have all the simulation results from the DOE, they need to be formatted specifically for romAI, which requires a single CSV file with time in the first column, followed by all training signals (inputs, outputs, and states) in subsequent columns. This file contains data from…
Introduction As the world shifts toward electric solutions, battery charging technology has become a cornerstone of modern innovation. At the heart of this technology lie power converters - sophisticated devices that manage the crucial task of delivering power to batteries efficiently and safely. Designing these power…
The environment is an increasingly important concern today and no economy is unaffected. Brake dust particle emission is becoming more and more important during brake development due to upcoming legislation and manufacturer responsibility to develop “green products”. As braking is a complex process, depending on speed,…
The Flow Simulator (FS) API allows users to create a main control program to load the FS solver DLL to perform basic functions such as loading and running a model. The API can be used to couple a FS model with another solver (ex: a thermal solver for 2D or 3D parts) The following features are currently available in FS DLL:…
E-book for System Dynamics and Controls Using Altair Compose This e-book is aimed at readers who are approaching “System Dynamics and Control Theory” for the first time or have a basic knowledge of this subject. We will provide the reader all the required theoretical knowledge before moving to the practical examples shown.…
S-FRAME stores and displays different steel section databases, letting the user decide which sections are more fitting to represent and try different conditions. In common practice, the user tends to use these default databases, however, some projects and models require using sections with specific properties, outside of…
This white paper discusses simulations of antennas on a large airplane for cases in which the inclusion of creeping waves is important: antenna patterns that include the shadow region of the fuselage and coupling between antennas on opposite sides of the fuselage. Results obtained with the asymptotic method Faceted Uniform…
Having access to full antenna models, or 3D pattern files, is sometimes challenging when performing radio wave propagation simulations. In some cases, we only have access to the datasheet of a given antenna. Using AMan, the antenna manger tool in Altair's WinProp, one can import the bitmap image of a horizontal and…
A transient analysis in Flow Simulator (FS) often requires boundary conditions that change with time. A mission component is used to store a table of time dependent data. A controller is used to transfer data from the mission component to the model boundary conditions. Creating a Mission Component A mission component is a…
Creating signals that drive a component’s behavior is a fundamental requirement in systems modeling. Very often, a system’s model requires us to set up timers and delays that are triggered by events and reset by other events. Although Twin Activate allows for many alternatives to create signal profiles for activation of a…
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