A space for simulation related technical resources and discussions.
In this article, we provide step by step modeling guide for aerodynamics simulation for sedan car.
In a PSIM schematic shown below, the user reported the erroneous delay time at the output of the “Unit Delay”. In this schematic, Sampling frequency in the “Unit Delay” block is “1/100nsec”. The expected delay is 100nsec. The simulation result of this circuit is as below. The delay time is 150nsec instead of 100nsec. Is it…
S-FOUNDATION performs a series of different rigid and flexible code-checks on foundations, which are heavily influenced by not only the acting forces and the foundation's geometry, but also, the existing soil properties. Join us to learn how these results may vary considerably for two identical pile caps, and how the pile…
Altair Activate is an environment for block-level diagram modeling and system-of-systems integration, useful for simulating at different levels of fidelity, from simple signal-based modeling to robust Multiphysics applications and digital twin solutions. In this first challenge, you will learn how to build and execute a…
Introduction: In this article, we review three different modeling practices for performing an FRF analysis by enforcing acceleration to the structure. The methodologies are simulating the phenomenon of enforced acceleration with the use of the following three cards: * SPCD * ACCEL1 * GRAV Frequency Response Analysis is…
The units set at the two last lines of /BEGIN can have several roles : 1. Unit conversion of the input parameters If the two lines are different (not matching), Radioss will consider that the input data (the input model) are defined using the unit system set at the first line and will perform a unit conversion to the unit…
Product = GENESIS This custom-made aerospace case study demonstrates what can be done with any assembly, part, or structure of an aircraft. This is a fuselage section on which sizing (thickness changes) and topology (shape changes) were used to optimize the structure for a couple of very simple load cases; cabin pressure…
Attached are EDEM Benchmark results from 2019, 2021 and EDEM 2022.2. The latest benchmark results are in EDEM_GPU_Benchmarking_2022.2.pdf These results are from a series of standardised real world simulations: The key results show the scalability of the A100 GPU (CUDA Solver) vs CPU:
AEC Coffee-Break Series Dynamic behavior is an essential structural characteristic that structural engineers should consider. The effects of dynamic loads (earthquakes, blasts, vibrations, or any time-varying loading) are often greater than static loads and can vary in magnitude at non-periodical time intervals, increasing…
The OpenRadioss Community met in Aachen, home town of the SkyCab, on June 27th, with a full day of technical presentations and discussions around this exciting open-source project. https://altair-2.wistia.com/medias/uj70zppe7n First, I want to express my profound gratitude to our host the FH Aachen, University of Applied…
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