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internal mesh face for Electric Loop Cut in 3D Transient Magnetic
Hello everyone, I am currently setting up a 3D Transient Magnetic simulation in Altair SimLab 2025 (Flux solver) and I am running into a connectivity issue where the software tells me that some of my parts (like the stator) need Topological Cuts. To solve this and create the Electric Loop Cut and Magnetic circuit cuts, I…
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Seminar about parallel computation
Hi everyone, I am checking the resources that Simlab provides for parallel computation and I can not find a lot about this topic. Could anyone address me to something useful to run several (parametric) simulations simultaneously? If not, would it be possible to make a seminar about this topic, as I think that many of us…
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How to reduce computation time in Simlab
Hi everyone, I am running a big simulation in Simlab and it takes a huge time to finish as it needs to go through several parameters to be completed. Does any of you have a suggestion on how to speed up the computation time? I already set the number of the cores to the maximum, but I still do not see a noticeable…
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SimLab Meshing Issue – Disconnected Mesh & System Performance | Electric Motor Model
Dear Altair Support Team, I am currently working on a meshing project in Altair SimLab and facing several issues. I would appreciate your guidance on how to resolve them. SOFTWARE & WORKFLOW CAD model created in PTC Creo, exported as .stp file Imported into Altair SimLab for meshing Model consists of individual parts of an…
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Definition of Motor Inductance in Circuit
Hello everyone, I see that in tutorials an inductance in the motor circuit is defined but I do not understand how this is calculated. Could you please provide a help in calculating this value for an axial-flux motor? The inductance changes with the rotor position, so how could I already give it as input in the circuit…
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Reporting of two bugs in Simlab electromagnetics
When I used imposed current with a parametrized current that should change over time, the current does not update over the rotation. It does with a circuit tho. When I go on solver settings→ Results request and a circuit is defined in my case, the software crashes. It does not crush if the current is given through the…
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Exterior acoustic simulation of Motor to predict SPL using Surface velocity data a input?
Hi, I have a surface velocity data of E-motor/Engine generated by third party MBD solver in .pch file format. I would like to use this data as a excitation to predict the exterior noise at 1m distance microphones. I have looked at the documentation of IE, RADSND & APML methods in optistruct. Surface velocity required for…
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SimLab - Cosite Interference Solution Not Working / Interface Not Matching Tutorial?
I'm using the student version of Altair SimLab and I'm trying to create a co-site interference simulation. So far I've followed along with the official Antenna Placement and Cosite Interference tutorials: Antenna Placement Co-site Interference The problem I have is that I'm stuck on creating a Cosite Interference solution.…
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3D mesh display problem in Simlab
Hello, I meshed my model with 3D elements but the volume doesn't seem to be filled. I only have the mesh on the surface. Is it only a display problem ? Is it possible to display the volume ? Thank you
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Solve with more than 8cpus
I have 30 Altair units, working in SimLab on an engineering workstation w/ 8 physical cores and 16 logical threads, how can I leverage hyper-threading?
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📢 Upcoming Session Alert! Breaking Simulation Barriers: HPC for Next-Gen Power Electronics
Get ready for our next insightful session on April 9 : Breaking Simulation Barriers: HPC for Next-Gen Power Electronics Join us for an insightful one-hour webinar designed for electrical engineers seeking faster, more efficient simulations in power electronics. High-Performance Computing (HPC) is revolutionizing the way…
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Shell Thickness Offset Display Error
Hello, I have a mesh of shell elements in Optistruct that have an offset value assigned to them. The shell represent an inner surface of a duct so the offset is there to make the thickness extrude outwards from this inner surface. Using the Display thickness tool however just shows these elements being extruded from the…
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Simlab 2026, solvers option not visible in the solutions
Dear Altair Team, I've installed Altair Simlab 2026 (student version) and I've also replaced the 'solvers' folder under SimLab\bin\win64\solvers with 'solvers' folder provided in the Simlab additionals zip, restarted the Simlab, also as an Admin few times, but i'm not able to see the solvers option in the window, as…
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Simlabs Installation
I have tried to install Simlab, but the process took too long. I have downloaded the file SimLab Additionals 2026 (Windows – x86_64 (64-bit) – 11) and put it in the same folder with the Simlab installer, but still the installer tries to download the Additional file from internet and it takes too long to download. Could…
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Different explicit result: abaqus vs simlab optistruct
One bar should give about 10N at 4cm compression in abaqus. However, after I imported it into simlab, SPC force results in 3kN. I also made material test using simple cubic or dumb bell, they has same behaviour in material test. What is causing the high stiffness of simlab model? There must be some hidden structural or…
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Best way to parametrize electric motor?
Hello, I am designing an electric motor and I am looking for the best solution to parametrize my model in order to study the effect of several geometrical lengths in my design. At the moment I am working with SolidWorks, but SimLab does not allow me to change its geometry in a parametric way. Therefore, every time I want…
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What does this symbol mean?
Hi, When I volume mesh my body, I get that a volume gets this symbol after meshing. Could someone understand me what it means? All other bodies get a 3d shape next to their name, but only the air of my motor (cavity1) gets this blue 2d shape next to its name.
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How to Control Break Angle for 2D Surface Mesh Selection in Create Groove Weld?
How can we control the break angle for 2D surface mesh selection in Create Groove Weld? While creating a groove weld between two parts, the root edge and toe side 1 are selected correctly. However, when selecting toe side 2, the tool also picks faces outside the groove. Is there a way to limit the selection using break…
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SimLab: Duplicate a coil turn by circular rotation to create the full winding — possible? How?
Hi everyone, I have a 3D CAD body (solid) representing one coil turn / one conductor of an electric motor. I want to create the full winding by duplicating this body in a circular pattern: rotate-copy it around the motor axis with N instances (angle step = 360°/N). Is this possible in Altair SimLab? If yes, what is the…
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Trying to save SimLab model to Teamcenter environment
Hello, I am trying to save my SimLab model to my Teamcenter environment but I am getting the FCC error above. I know the PDM repository is connected successfully as I was able to find the item revision I wished to attach my sim results to, but I am not sure where to go from here.
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February & March 2026 Community Event Lineup is Here!
Get ready to dive into an exciting lineup of events designed to help you get the most out of your Altair tools, connect with fellow users, and expand your knowledge! Whether you're looking to master new features, explore advanced applications, or simply connect with other enthusiasts, our upcoming events have something for…
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Circuit Designer not working in SimLab v2026
Hello community, today i tried to follow some tutorials for SimLab with Flux for transient Simulations. Therefore it is needed to use the Circuit Designer to setup the Current Source. Unfortunately it is not possible to move, edit by double click, delete, wire or move the Circuit Components. Things I already tried without…
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Not getting export option in Simlab
I have recently downloaded the Simlab Student version and want to export the file in Abaqus CAE. But I am not getting the option of Exporting the file to a file extension suitable for Abaqus. I am able to save the file in only .slb format. Can anyone sort this problem?
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SpaceMousse Support SIMLAB2025.1
Hello, is there any support for a Spacemousse in SIMLAB2025.1? Since the UPDATE from 2024.1 to 2025.1 it is not possible to use the SpaceMousse. Software updates regarding the SpaceMousse Software don't help. Is there a workaround or anythin else? Thank you in advance.
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Simlab software Crash During CFD Mesh for Vehicle AC Duct Simulation
Hello Altair Support Team, I want to perform a vehicle AC duct simulation, but I am facing an issue where the software crashes after starting the CFD meshing process. I have tried multiple iterations, but the software continues to crash. When I separate the HVAC unit and duct geometries, the volume mesh completes…