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Tie contact data field #4 is incorrect
What does this mean and how do i get to the dialogue to fix this? I got the following error message: {C:\PROGRA~1\Altair\2024\common\tcl\tcl8.5.9\win64\bin\tclsh85t.exe} C:/PROGRA~1/Altair/2024/hwdesktop/../common/acc/scripts/hwsolver.tcl {N:/Supermidleage/Tub FEA/087464_B_1-087464-V16_Tub_1.fem} -screen -dir -solver OS…
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Error 557
Hi, I am tryin to minimize the structural cost using a custom function for a topology optimization, however I am running into an error. *** ERROR # 557 *** DRESP2 16 is not referenced above the first SUBCASE. This type of response must be specified above the first SUBCASE. This error occurs in DESSUB 14. How can I resolve…
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Starting with Radioss
The purpose of this post is to guide you and to get you started with Radioss, through a series of articles that cover the basics of Radioss. 1 Starting with Radioss First, if you want to understand why people are doing Crash analyses (and similar ones) and see what Radioss is and for which applications it can be used and…
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Error in coupling Flux with Matlab-Simulink
I want to couple a Flux v.2025 project with Matlab/Simulink v.2023b. First, I got a .F2MS file from Flux, then I opened Matlab from the Flux Supervisor, and then I selected Flux Link block in Simulink library. Although the time step is the same in the two the softwares, I face the below errors: Error:An error occurred…
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Is it possible to couple Altair Flux with a Matlab Script?
I have a Matlab script, and I want to call Altair Flux from Matlab, run a Flux project, extract some sensor values from it, and then import these values back into Matlab. I need to repeat this process in a loop. What is the best way to couple Matlab and Flux to get this?
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Error 2150
Hey, I am just learning optistruct, 1 week in. I'm doing a topology optimization for a steel bridge competition, where the aggregate deflection needs to be less than 0.75 inches, the weight of the structure is less than 250lbs, and the sway is less than 0.25 inches. I am having trouble with error 2150. The model on…
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Accessing Statistically-Based Design-Allowable Properties Using MMPDS Data in AMDC
In finite element analysis (FEA), the accuracy of your simulation is only as good as the input data - particularly the material properties. In safety-critical applications such as aerospace, defense, and automotive, using nominal or average material properties is not enough. These values don’t account for natural…
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Material Selection for Plastic Gears Using Altair® Material Data Center™
Plastic gears are widely used in automotive, industrial, and consumer applications due to their cost-effectiveness, low weight, corrosion resistance, and quiet operation. In the automotive industry, plastic gears can be found in critical subsystems such as windshield wiper mechanisms, seat adjusters, electric window…
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Is it possible to incorporate the impact of endwinding in 2D Flux thermal study?
I am performing a 2D radial-plane thermal simulation of an electric machine. Normally, the effect of the end-windings is neglected in this study, as it is not modeled. Is there any way to include or approximate the impact of the end-windings in such a model? Is there any way to add a thermal circuit to model it? For…
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Boost Simulation Usability with Materials Intelligence in Altair® Material Data Center™
Incomplete material data can be a major roadblock in simulation workflows - especially when accuracy, multi-physics compatibility, and solver-readiness are critical. The Materials Intelligence capability in Altair® Material Data Center™ (AMDC) addresses this challenge head-on by automatically identifying and filling data…
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Searching Materials in Altair® Material Data Center™
The Altair® Material Data Center™ (AMDC) is a comprehensive, cloud-based platform that enables engineers, designers, and analysts efficiently find and use material data for simulation and product development. One of AMDC’s most powerful features is its versatile and intuitive search functionality, allowing users to find…
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I keep getting an error message when I try to activate my student license.
I recently installed HyperMesh, Compose, MotionSolve, EDEM, and Twin Activate. I am trying to activate my student license, but I keep getting this error message. Could someone please help me?
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Smart Material Selection for Sheet Metal with Altair® Material Data Center™
Sheet metal plays a vital role across industries - from automotive body structures and aerospace panels to heavy engineering equipment, consumer electronics casings, and household appliances. Each application demands the right balance of strength, weight, and manufacturability, making material selection a critical step in…
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What is the difference between circuits constructed through "Wires" and "Cables"?
Description: Recently I have found out that in CADFEKO there exists an extension called "Cables" (Home > Extension > Cables) through which I seem to be able to construct circuits. Up until now I have mainly constructed circuits I was interested in directly by using Wires and Loads. I am curious whether there are difference…
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Particles disappear
Hi, I am doing a simulation of a ramp that vibrates and has particles. The issue I am having is that when the ramp starts to vibrate, after 0.05s the particles disappear. I have tried reducing the Rayleigh Timestep/ Percentage, but this keeps happening. Is there any other reason why particles might be disappearing and how…
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Hypermesh Python API: Getting elements by config
Hi, I'm wondering what the best way is to collect elements by type in the python API. I found how to collect all elements but I only want shells really which I can then feed into the next part of the script (creating a display model from a set of shells is the ultimate goal). Looking at the examples, it seems to suggest I…
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Coupled Simulation of Rock Breakage by Hydraulic Hammer Using EDEM and MBD Co-Simulation
A hydraulic hammer, also known as a hydraulic breaker, is a powerful tool attachment for excavators and other construction equipment that uses hydraulic pressure to deliver high impact blows for breaking bulk material such as concrete, asphalt, and rock. Objective: Simulating rock breakage using a hydraulic hammer with…
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Multibody & Non-linear FEA Co-Simulation with MotionSolve and OptiStruct: Battery Pack Use Case
NOTE: A solid, in-depth understanding of MotionView for vehicle modeling and OptiStruct for structural analysis is essential to successfully implement this type of MotionSolve–OptiStruct co-simulation workflow. *Refer to the attached folder, containing detailed process of the MS-OS Cosim workflow along with all the model…
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huge temporary files
Hello Altair Communuity, I built a large finite element (FE) model and want to evaluate the stresses in the components. The problem is that HyperWorks creates a large number of temporary files during the calculation, which causes the calculation to break down when only a few elements are output (less than 100,000). If the…
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Encoder Pulse Missing-TMS320F28379D MCU
Dear Team, We are currently using the Altair Embed 2024 license version.
While reading the encoder (GPIO24 & GPIO25) using the TMS320F28379D in our own microcontroller , we are experiencing missed pulse counts. (Our motor has a tick count of 4000 per full rotation) Ideally, the tick count should go from 0 to the maximum…
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Altair Feko: What's new in Feko 2025.1
Highlights of the 2025.1 Release The Feko 2025.1 release features extensions to many different solvers - enhancing Feko's capabilities in propagation modelling, network planning as well as general and specialist EM analysis application areas. There are various performance improvements, interoperability, and API extensions,…
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How can I fix error 1479 ?
Hello mr. assistance. Im the newone in Altair Inspire (v2023). I don't know how to fix this problem. Can you help me to fix this ? When analyzing the part after optimization, the process suddenly shuts down and pops up a notice that announces" Analysis Error 1479." I tried to delete some geometries and forces that I…
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Doubts about mbd simulation on fsae models
Hi, i'm a beginner at mbd simulations, and I want to understand some things about motionsolve and the fsae model that altair gives to us. I imported the standard model, but it doesn't match our CAD model, so i'm wondering if there is a way to import our assembly to this model, or even to motionsolve somehow? Or, how can I…
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Flux - SimLab Tutorial: 2D DOE and Optimization of PM Motor
Introduction Permanent magnets play a crucial role in modern electromechanical devices, ensuring efficient performance in applications ranging from electric machines to sensors. PM motors are now the most used motors in the automotive industry. Optimization is key to improving performance. Recent advancements in simulation…
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DEM–FEA Coupled Simulation for Granular Packing
Simulating granular packing using DEM and FEA is a powerful way to analyze how granular materials interact with solid structures-especially when both the particle dynamics and the deformability of the structure are important. Coupling DEM and FEA allows for detailed, high-fidelity simulations of granular packing in…
