Ask Questions, share insights and find resources to take full advantage of Altair products. Join our community of more than 1.3 million users.
There's a wealth of content waiting for you to explore! Need support or have a question? Login or join our community.
Everything you need to know to get started on the Altair Community.
Page to display all discussions for product tags available in Altair Community. This list only acts as a starting point and is not the complete list. Kindly use the search page to filter by all available tags in the community.
Ask questions, browse technical discussions of commonly occurring problems or view announcements.
A space to store language specific content. Currently, we have Japanese and Korean categories available.
A space for academic related technical resources and discussions.
A space to share your Altair scripts, models, workspaces and extensions with the community.
Join us for a community conversation to discover how integrated simulation can help analyze radiated electromagnetic emissions in EV powertrain systems. This session will demonstrate how Simcenter Feko and Simcenter PSIM work together to estimate emissions from a three-phase cable and assess their impact on nearby…
Join us for a community conversation on accelerating power electronics design, where you'll learn how to leverage the fast simulation capabilities of Simcenter PSIM alongside the powerful design exploration and optimization features of Simcenter HEEDS. In this webinar, we’ll show how engineers can move beyond manual…
Join us for a community conversation on Pulse Width Modulation (PWM), a fundamental technique in electric motor control, and explore how different PWM strategies can yield significantly different results. This webinar provides a comparative analysis of various PWM methods and their effects on motor efficiency, torque…
Join us for a community conversation to discover the Advanced Iterative Solver(AIS) in Simcenter Feko and its application to electrically large and computationally demanding electromagnetic models. The session will provide a general overview of how iterative solution methods can help improve efficiency of large scale…
Join us for a community conversation on how High-Performance Computing (HPC) and Simcenter PSIM work together to meet the increasing demands of modern power electronics simulation. During this one-hour technical session, you'll discover how leveraging HPC can speed up simulations, improve scalability, and empower engineers…
How does Tdelay works for /SENSOR/NOT/ in Radioss solver in Hypermesh 2025.1? I read about in solver help and it only says Time delay. What I want to set up is to apply velocity on a crush plate untill the require force is reached and stope after a time delay. So, i set up the velocity to work untill the force is reached…
Hello everyone, I am using Altair EDEM 2026 and HyperStudy 2026 (27.3232714) with the EDEM–HyperStudy Connector 2026.d9a3774. When I run the model definition in HyperStudy, the following occurs: HyperStudy successfully writes the input parameters to the EDEM model. EDEM runs normally and reaches 100%. The log reports…
On HyperMesh 2026.1 "Select Surface By Feature" is not working on my current model neither on the tutorial model. When I select the surfaces by feature and press OK it does not select any surface. I've tried with the tutorial AND a different model. I'm trying to create a Surface Mesh - Feature control but not able to do…
Is there a way to represent missing values in a .hwascii file that contains multiple scalar results? I tried leaving blank fields for elements that do not have a value for a specific result. However, it seems that HyperView does not interpret empty fields correctly. Instead, it shifts to the next available value in the…
Hello Altair Support Team, I am currently using the Altair Student License for PSIM. Recently, the Windows OS on my virtual machine (UTM) crashed, so I had to delete the virtual drive and install a fresh Windows OS. Because of this, my system's Host ID (MAC address) has changed. When I try to enter my activation key, I get…
Hello, I registered my Altair One account using my official university email address. In Altair One > Managed Licenses, I can see the HWPSIMPowerSupply license, and an expiration date is shown. However, when I launch PSIM 26.0, I get the following error: Feature: PSIMPowerSupplyFeature Error Code: -29 Requested CT/TTF…
Hi everyone, I’d like to know what the good specifications are for a computer that can run Hypermesh and OptiStruct student edition without any problems? I’d also like to know how I could recover my license key since my computer was stolen.
Hello I have some issues when modelling a fan at the exhaust of a rack server. I don't know if my setup is correct for modelling the fan, because it was really hard to converge. Are the issues come from the mesh or the setup itself? Also, what is immersed boundary? I always find this error when I tried to do a frozen flow…
I'm experiencing a license error and have tried all troubleshooting steps without success. Any advice or solution would be greatly appreciated. I already check that host id is fine.
Hello Altair Support Team, I am experiencing an issue where PSIM remains functionally restricted even though activation succeeds with my Student Edition key (LAH4R-T5HRK-XXXXX-XXXXX). [Current Symptoms] Activation: The activation process via Altair License Utility completes with "Activation Successful". Behavior in PSIM:…
(hypermesh 2025.1) I would like to simulate some Ergall ribs bonded to a carbon fiber shell. What is the best way to simulate this bonding? Until now, I have used freeze contacts, but with this method the bonding becomes infinitely stiff. Since I am using ductile adhesives that can bridge gaps of up to 3 mm (in my case…
S-frame 23 unable to open file and show BS5950.DAT does not exist!
Hello, I am using Altair EDEM 2026.1 through the Altair Student Edition on Ubuntu 26.04.1 LTS. EDEM was working previously with this same Student Edition license, but it has stopped checking out the EDEMGUI feature. EDEM reports: License Error -29: Requested CT/TTF license not found for given customer ID I checked the…
Hi all, The EDEM 2026.1 Windows installer (AltairEDEM2026.1_win64.exe) extracts to 100% ("InstallAnywhere is preparing to install...") and then closes without the setup wizard appearing. It fails the same way in GUI mode, console mode (-i console), and Windows 8/7 compatibility mode, run as administrator. Running it with…
Hello, I have a PSIM student license and I get the error: This license was already activated on another machine. I activated this license on my university lab PC. The lab computer has automatic system restore. After class, when I shut down the PC, all local license records are erased automatically. I cannot return to that…
The Altair documentation portal located at help.altair.com and https://support.altair.com/csm?id=altair_product_documentation is currently being sunset as part of the transition to Siemens Support Center. After the sunset, Altair product documentation for versions 2026.1 and later will be available exclusively through…
STATUS UPDATE (March 9 2026): Dear Community, Your support cases have been migrated to the Siemens Support Center. As of Monday, March 9th, the Altair Support Portal has been shut down. You should have received an email with the links and instructions on how to activate your account and log into the Siemens Support Center.…
We continue to support our academic customers and users who were using and need to use the Altair One system during the transition to the Siemens Ecosystem. You can access its marketplace, downloads and Altair units managed licenses as before. You need to use the same URL - https://altairone.com/Marketplace during our…
The Siemens Community Catalyst program was co-created with our community to acknowledge technology leaders who consistently contribute to the Siemens Community.
It's time for our March roundup! We've been busy behind the scenes and we're thrilled to share some significant updates. Get ready! 📣 Major Updates Altair's Support infrastructure migrated to the Siemens Support Center: As of Monday, March 9th, the Altair Support Portal has been shut down and your cases have been migrated…
Our next community conversation session is coming up on Sept 24, 2026. This session will demonstrate how Simcenter Feko and Simcenter PSIM work together to estimate emissions from a three-phase cable and assess their impact on nearby antennas. You'll learn about the workflow used to connect power electronics and…
This month's community leaders