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Can someone help me send some suggestions about Altair software to the development team？
I mainly engage in structural analysis and multi-body dynamics analysis. As an engineer who frequently uses Altair simulation software, the transition from old interface to new interface has shown me a revolutionary change in CAE software. However, there are some small features that I think may require better development…
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How is the equivalent through plane thermal conductivity estimated by Simlab electroflo ?
I have used the below approach to generate an equivalent material for a PCB: Is this approach correct? The thermal conductivity values generated by the pcb layers are shown below: The thermal conductivity in Z direction (through plane) shows higher value ~ 13. How can a pcb thermal conductivity across through plane…
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Split faces of a 3D Mesh - SimLab v2025.1
Hello! I need to carried out a CFD simulation and I'm using SimLab v2025.1. I've imported the mesh in the program, but I've a problem with the application of the boundary condition. For convenience, I created a very simple model (Cavity), which has the same problem. It is a simple box (screenshot), the inlet face is the…
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3D Connexion Spacemouse not working in Simlab 2025
Hello, I can't get my 3dconnexion spacemouse to work in Simlab. The only thing that happens when I use the mouse is that I can zoom in or zoom out. Any idea how I can get the mouse to work?
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What’s New in Altair® FluxMotor® 2026
Altair FluxMotor 2026 FluxMotor 2026 introduces a modern, intuitive interface that’s more than just a fresh look—it’s a smarter way to work. With harmonized inputs and streamlined interactions across all modules, designing motors has never been easier. A standout addition is the 3D motor view, giving you a clear,…
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Altair® Flux® 2026 Release Highlights
Providing the most effective workflow for your electromagnetic simulation challenges is our main goal. With Flux’s core solving capabilities now seamlessly integrated into SimLab, setting up your models has never been faster—or more intuitive. The latest advancements in Flux 2025.1 and 2026 bring great productivity tools…
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Cosite Interference Analysis in SimLab 2026.0
Cosite interference is a critical challenge in modern communication platforms, where multiple antennas and radios must coexist in a shared environment without degrading each other’s performance. Altair SimLab offers a streamlined workflow to evaluate, visualize, and mitigate cosite interference, combining full-wave antenna…
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SimLab meshing on multiple cores
Are there any tutorials or examples on parallel meshing for SimLab? I tried to create multiple bodies and create multiple tet meshes from them. I increased the no. of core used in meshing in the mesh preference tab. Though it looks like the meshes are still created sequentially based on the output. However in the…
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How to model Pin/Bearing load in Planet gear at MotionSolve?
While using Machinery extension to simulate Planetary gear drive at Motion Solve I've ran into following problem I'm interested in reaction force acting on bearing of planet gear in planetary gear drive which would be as drawing below While Planetary gear extension at Machinery tool is great since there is no body of…
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Import of Solidworks file to SIMLAB
Hi everyone, I am trying to import a SolidWork file. I know that many of you will tell me to import the parasolid version of it, but I do need to import the design parameters to in order to make a DOE Everytime I go on Import>and select my solidworks file I get following error: Import Failed. Please help me, this error…
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Unified Workflow for EDEM - AcuSolve Coupling in SimLab
SimLab is a process-oriented multidisciplinary simulation environment to accurately analyze the performance of complex assemblies. Multiple physics including structural, thermal, electromagnetics, and fluid dynamics can be easily setup using highly automated modeling tasks, helping to drastically reduce the time spent…
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SimLab 2025.1| How to view rigid body modes and mass participation factor in normal mode analysis
Hello, I'm new to normal mode analysis. I ran one (no boundaries in this case) and I would like to know where and how to find the mass participation factor. I have an additional problem: the normal modes analysis with no constraints was to get the first 6 rigid body modes. I realize I couldn't get any translation of the…
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New eLearning Course - 2D Electric Motor Analysis with SimLab
We recently released a new eLearning course, 2D Electric Motor Analysis with SimLab. 2D Electric Motor Analysis with SimLab will give you experience setting up a transient magnetic scenario for an imported PMSM geometry, and configuring a motion scenario to evaluate the motor torque and losses. Learn about 2D Electric…
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how to set constrains conditions for welding plastic tank in simlab
I wonder if someone has the experience to do the simulations for plastic or maybe metalic tanks like expansion tanks that have two seperated parts which have been welded together. I have been doing like this: importing two parts and then make them booleaned and then contact I make them tied. So this way the two parts are…
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How to handle intersection issue in simlab as well as Hypermesh ?
Hi Good Day, In SimLab, we typically use the Element Intersection tool to detect intersecting elements, remove them, and then rebuild the mesh either manually or using the autofill option. However, I’m looking for a way to address these intersection issues directly at the CAD/geometry level. For CFD meshing, Boolean…
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Symmetry mesh for electric motor application
Hi everyone, I am trying to consider the periodicity of my electric motor in a simlab model, but i get the error: Could not find matching pairs within body for the following faces: 8587, 8446, 8625
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Import materials from Flux material manager into Simlab
Hi, I just wanted to know if there is a way to import materials from the Flux material manager into Altair Simlab Flux 2025.1? Best regards
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Power Electronics Design Utilizing Machine Learning for Thermals
(This is a translated version of an article posted by Kosuke Ikeda. The original article in Japanese can be found here) At the 1DCAE & MBD Symposium 2024, held in Hiroshima from November 28 to 29, 2024, a presentation was given on the theme “Power Electronics Design Leveraging Machine Learning and 1D Simulation.”…
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Groups on similar CADs within one database
Hello, Altair-Community, In SimLab I run the simulation for a tank, which has 4 kinds of inlets - see the attached figure: The outlet remains the same. It means, that I have 4 CADs in the assembly browser. I have created the surface groups on the first CAD I need and would like to apply as many as possible of them on a…
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SimLab License
Hello, I am a student and I am trying to install SimLab. I successfully downloaded Altair SimLab 2025.1 and generated the license. I successfully activated the license within the almutil_gui.exe utility, but when I open SimLab, I get the following error: I don't know how to proceed to resolve the following error. I also…
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알테어 simlab에 학생에디션 라이센스를 입력했는데 인증이 안돼요.
Description: 원래 simlab 2025.1을 잘 쓰고 있었는데 오늘 갑자기 라이센스를 입력하라고 뜨더니 입력을 해도 오류가 발생합니다. 해결하려면 어떻게 해야하나요..? 학생 라이센스는 26년 9월까지 유효합니다. Product/Topic Name : Simlab 2025.1 *Note from Community Team - Once you receive a satisfactory answer on your question, kindly mark your answers as "Accepted" so it can help others with similar…
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Simlab-NX import시 progress bar 진행 후 아무일도 일어나지 않습니다.
위처럼 모델이 불러와지지 않습니다. 에러메세지도 안뜹니다. 해결책이 있을까요?
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what are the difference between coupled solution and the structural solution with mapped temperature
I noticed that the results from the same models with coupled solution and the structural solution with mapped temperature and pressure are different(from pdf of heat transfer analysis training), is it because that within the coupled solution, the displacements of the model will be sent to flow solver to recalculate the…
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Inject current in motor SIMLAB
Hi, I am trying to inject a current in the motor windings but I can not select the internal face since I get the error: "The selected body does not have any internal face". I even tried to generate the geometry through an assembly coupling to identical parts to form the windings, but I still get the same error. PS: I am…
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the plot from result, what is the relation between the resultant and the X,Y,Z
Hello, I am trying to analysis the stress plot and I add all the curves including resultant, X, Y, and Z. I wonder how does the resultant being calculated, it can be calculated from the number of X,Y and Z considering the directions? Can anyone knows this better give me an explanation ? thanks!
