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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…
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SimLab Flux Motion Issue
I currently am having an issue with using SimLab Flux solver. I have attached the error log text file that I received. I cannot provide the model due to IP however I am trying to model a permanent magnet coupling in order to find torque and loss. I have added a motion to the outer part with values shown below. In the error…
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*** INFORMATION # 3079 Equivalent plastic strain larger than the max value
I am trying to do a simulation of an expansion tank and the first version there was no problem to get a result but then I noticed the bad quality of upper part do I did the mesh for upper part again, the rest I remain the same but this time when I try to run the simulation the log tells that the warning of # 3079 like…
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How to create custom Stator from Simlab and then export it in Fluxmotor to check the performance ??
Hello Altair Community, I am currently developing a high-speed permanent magnet motor using SimLab 2025 and FluxMotor 2025. Due to the highly specific nature of our stator and rotor laminations, I am moving away from standard templates. I have successfully created the custom geometry within the SimLab Sketcher environment…
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thermal analysis in SIMLAB
what is the right method to use units in simlab in order to get the real solutions for thermal analysis? ive seen the tutorials and the values for thermal conductivity, heat capacity and thermal constants are not consistents with the real values and properties.
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Simlab Electronics Thermal PCB 열해석 관련 문의
Description: Simlab Electronics Thermal를 활용해서 PCB 열해석을 진행하려 하는데, IC에 적용한 발열량 대비 온도가 너무 높게 나올뿐만 아니라 열분포가 다소 고르지가 않습니다. 무엇인가를 놓치고 있는 것 같아 문의드립니다. 진행한 해석 방식은 아래와 같습니다. 1. 해석진행 방식 stp 파일 불러오기 → 소재 입력(구조:AL, PCB:FR4, IC:ABS) → IC Heat Source 적용(발열량) → Convection(운영 Max. 온도 적용) 2. 문제점 - 발열량 대비 IC 온도가 너무 높음 / PCB 및 구조 전체에 열분포가…
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I have a few questions regarding weld modeling and fatigue（simlab and hyperlife)
In Simlab, welding seams support solid welding seam modeling and node fusion using connection functions. However, in Hyperlife (Basic Version), welding seam fatigue only supports the Volvo method and does not support solid welding seam fatigue. It seems that Hyperlife (Welding Evaluation Version) supports static and…
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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?
