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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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Different explicit result: abaqus vs simlab optistruct
https://us.v-cdn.net/6038102/uploads/LYRBCRKRHJ0W/singlebar.inp 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.…
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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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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…
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Does the Torque output already account for internal losses in 2D transient magnetics in Simlab ???
Hello Community, I have recently completed a 2D Transient Magnetic simulation in SimLab for a high-speed motor. My goal is to determine the final output power, but I am seeking clarification on how the flux solver handles different loss components in relation to the calculated torque. Setup & Results: Software: SimLab 2D…
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Litz wire modelling in 2D transient magnetics in Simlab
Hi, I am currently working on a 2D transient magnetic model of an electric motor in SimLab. I am trying to model the stator winding using a Litz wire representation. Here is what I have done so far: Created the motor geometry in 2D. Constructed the Litz wire cross-section (multiple strands inside one slot). Merged all…
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SimLab : Problem with the configuration of OptiStruct
Dear everyone, I have a problem with Simlab when i try to run the solve of my simulation. I have a probem/error that's tell me " OptiStruct solver environnement is not configured". So i downloaded the additionnal file to try to solve this problem, but i had the same problem. On the community, people had the same problem…
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Solder Fatigue with Blattau method (Difference in CTE): Interfaces not found
On a PCBA board, we’re running a solder fatigue calculation using the Blattau method on a BGA component, but the solver is not detecting the PCB–Solder and Solder–Package interfaces. Note: the exact same model works with the Syed method (same PCB/balls/package sets, and the same TIE contacts PCB/Solder and Package/Solder).…
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Is it possible to do Transient thermal analysis of a motor in 2D ???
Hi everyone, I am currently working on a motor design project and have successfully completed the 2D Electromagnetic Analysis in SimLab. My goal is to perform a Transient Thermal Analysis while keeping the workflow in 2D to optimize solve times. I am running into two specific hurdles: Cooling Channel Definition: When…
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Circuit Designer not working as intended in SimLab v2026
Hello community, today i tried to follow some tutorials for SimLab with Flux for Magnetic AC 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. I also tried SimLab v2024.1 -…
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Is it possible to perform 2D CFD analysis in Simlab ??
Hi everyone, I am working on a motor and have completed the 2D electromagnetic design in SimLab. Now, I need to perform a thermal analysis to identify internal hotspots and verify the effectiveness of my water cooling. My strategy is to start with a 2D workflow for fast iterations before moving to a full 3D model. I have…
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Inquiry regarding Inlet Boundary Conditions for Thermal-Fluid Analysis in SimLab (Flow)
Hello, I am currently using the SimLab v2026 Student Edition. I have a question regarding the thermal-fluid analysis of a battery segment using the Solution - Flow tool. (I apologize for any unnatural expressions; I'm relying on a translator for this message.) The model geometry is as follows: The area highlighted in green…
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Export .inp file from SimLab
Instead of running the CFD simulation using Simlab GUI, can i instead run it using Altair compute console? if i can, how to generate the Acusolve .inp file?
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Simlab에서 Flow을 이용한 열유동해석 시 Boundary Condition-Inlet조건 문의
안녕하세요. simlab v2026 student edition license를 사용하고 있습니다. Solution - Flow를 이용하여 배터리 세그먼트 내부의 열 유동해석 시 궁금한 점이 생겨 질문 남깁니다. 모델의 형상은 다음과 같습니다. 초록색으로 표시된 부분이 냉각Fan의 inlet face이자, 해석하고자 하는 모델의 inlet입니다. 질문 사항은 다음과 같습니다 냉각Fan의 inlet과 해석 하고자 하는 모델의 inlet face가 겹치는데, BC - Fan Component에서 Fan의 스펙을 입력한 후, BC - inlet에서 inflow type -…
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Functional bar/ spring in Simlab 2025
This is posted on 2026-2-2 Is Simlab 2025 capable to create functional bar/ spring between two point in explict analysis? What is the cmd of it? I hope to realize some simple function, like control the bar length through time, or use PID control if possible. Thanks Qin
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Simlab motor exportable to other Altair modules
Hello hello, I’m trying to create a motor in SimLab in such a way that it can be exported to other Altair tools (Twin Activate, Flux Motor, SimSolid, etc.). I’ve successfully created an assembly with the different parts of my motor and run a simulation. However, this assembly is not recognized as an “official”…
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How to define manual Time Settings in SimLab 2D Transient Magnetic?
Hi everyone, I am currently working on a motor project using SimLab 2D Transient Magnetic analysis. I am trying to implement a custom speed profile where the motor runs at a lower speed for a certain period and then accelerates. To do this, I need to adjust the Stop Time and the Time Step manually. However, I am…
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Magnetic circuit not detected, connectivity
Hi everyone, I get this error when trying to run my simulation: Impossible to detect the magnetic circuit composed by the following bodies: pole_1 These bodies do not respect the connectivity. In order to execute a magnetic circuit cuts check on these bodies, please unmerge them and then you can merge them by groups of…
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SimLab Transient Magnetic 3D Motion Issue
I am modelling a permanent magnetic coupling. Unfortunately for IP reasons I cannot share the analysis file. The outer coupling has a motion as defined below, with the max time as one cog in the coupling. When I try to run the model, I receive the attached error log stating there is not a value in the Ang Pos of the…
