A space for simulation related technical resources and discussions.
Altair Compose supports the creation of Graphical User Interfaces (GUIs) to simplify and streamline workflows that will be executed repeatedly or by someone unfamiliar with tools like Compose or other IDEs. Most tasks in Compose can be executed running scripts and updating relevant file paths and variable values, but they…
This discussion is a running list of FlightStream publications. Our team will routinely update this thread. If you are unsure whether an investigation of interest is available, please reach out to our team directly. Little, D. S., Majdalani, J., Hartfield, R. J., & Ahuja, V. (2025). Improved prediction of propeller tonal…
Sheet metal plays a vital role across industries - from automotive body structures and aerospace panels to heavy engineering equipment, consumer electronics casings, and household appliances. Each application demands the right balance of strength, weight, and manufacturability, making material selection a critical step in…
Introduction EV performance optimization starts with understanding vehicle behavior under key operating conditions. One of the most critical scenarios for both industry and Formula Student (FS) teams is the Wide Open Throttle (WOT) test - where the throttle is fully engaged, delivering maximum acceleration and power draw…
Introduction We will simulate the WLTP Class 3b drive cycle of 1,800sec in just 25sec of simulation time, which is x72 times faster than real time. Let's see how! The first part of this workflow is already covered here: Faster-than-Real-Time EV Drive Cycle Simulations with PSIM-trained Fit Models | Part1 The second part…
IntroductionWe will simulate the WLTP Class 3b drive cycle of 1,800sec in just 25sec of simulation time, which is x72 times faster than real time. Let's see how! Working with drive cycle simulation can be challenging—especially when attempting to include all the details of an electric powertrain. The main issue arises from…
Validation of CEM codes is essential if they are to be used in production analysis and design. The utility of CEM modeling is greatly diminished without trust that a given code produces answers sufficiently representative of physical reality. This topic was the focus of the recently published IEEE Antennas and Propagation…
In this article, we demonstrate the implementation of bidirectional position control for a BLDC motor under variable load conditions. A custom simulation model has been developed, where both the desired position and external torque load can be provided from 3D mechanical systems. Since PSIM is inherently a 1D system-level…
The aim of this article is to demonstrate how to define the Preload Axial force applied to the set of beam, truss and spring elements. This feature is available from Radioss version 2024 Software used: Altair Radioss version 2024.1 & above Altair HyperMesh version 2025.1 Model setup We considered five different types of…
The aim of this article is to show the different type of sequence of drops and step by step procedure used in model setup by using HyperMesh and Radioss solver. Why This sequence of drops is done on a single part / assembly to validate it for the shocks what it may face during it lifetime or while transporting from…
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