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Altair Community April 2025 Roundup
Hello Community Members! Welcome to the April Community Roundup! We're thrilled to bring you the monthly collection of activities in our community. Your feedback matters to us - We'd love to hear your thoughts on these roundups and learn what content you find most valuable. What would you like to see covered in future…
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Community Champion of the Month - April, 2025
The Community Team would like to introduce the April Champion of the Month, Lasse Kaikko @Lasse. Lasse works as a Solution Manager in a team where one of the team’s key responsibilities is to automate processes of transforming unstructured or semi-structured data into a structured format. He has been working with data…
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New Sessions added to the Power Conversion Series and other upcoming Community Events
Hi Everyone, Exciting Update! We added 2 more sessions to our ongoing Community Power Conversion and Motor Drive Chat Series. It is technical series where we will showcase the new capabilities of Altair’s power electronics and power conversion design tools. This monthly series is designed to showcase the latest…
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Exciting Update! New Sessions added to the Community Magnetic Chat Series
Exciting Update! We added 6 more sessions to our ongoing Community Magnetic Chat Series. This monthly series is designed to empower industry experts by providing them with insights into the latest features, workflows, and advancements in Altair’s Electromagnetics solutions. Throughout the series attendees will have the…
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Community Champion of the Month - March, 2025
The Community Team would like to introduce the March Champion of the Month, Yiğit Bağcı @Yigit Bagci. Yiğit is a structural analysis engineer who finds that evaluating complex engineering problems from different perspectives and producing solutions to these problems is the most exciting part of his work. Most of his work…
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How to detect mesh intersections with Hypermesh version 2024.1 ?
I'm a FEKO user. I have a complex mesh (vehicle) with many mesh issues. A lot are from triangles intersections. But I cannot identify and correct easily. Can you help me by telling what are the actions within hypermesh to detect such triangles? I cannot find easily the solution within the trainings. Thank you.
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Issue when testing model in PhysicsAI: consume_qcnn error
Hi, how are you? I'm using Altair PhysicsAI version 2024.1 on Linux, and I get this error right when I try to test a trained model with a dataset. The error says: *** UNEXPECTED ERROR *** Version: 2024.1 Module: consume_qcnn Line: 2931 Type: CalledProcessError I just wanted to know if this has happened to anyone else and…
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Entity Editor has gone AWOL
Description: I can't find the Entity Editor Product/Topic Name : HyperMesh 2024, OptiStruct I have lost the Entity Editor. I can toggle the check mark on and off in the View menu, but I can't for the life of me find it anywhere. I've closed every Browser window, I've minimized every window on the desktop, I can't locate…
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Cantilever Beam
Hello, all, Please, I was wondering if it is possible to replicate the fixed end (circled in the picture below) of a cantilever beam in EDEM. If yes, how do I go about it? I will be using sphero-cylinders for the particle. I am trying to keep one end of the sherocylinder fixed and apply a load at the free end. Thank you
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I cannot open d3plot (LS dyna solver output) files in HyperView, how to do that?
I am using version 2024.1
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untill 1:00 it was perfectly working then after a softwre update it showed the following errors. Wha
untill 1:00 it was perfectly working then after a softwre update it showed the following errors. What should i do ? Should i ask for a new student license and to who ?
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Tutorials
Hello, Please, can someone help me with the link to find the list of all the Tutorials available for EDEM? Thank you
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Issue with meshing generation
I have tried both the voxel and alternative meshing methods with a mesh size of 1 mm and a component mesh factor of 0.3 for the overflow, but I encountered an error as shown in the image. When I reduce the mesh size to 0.6 mm, the number of elements increases significantly to around 46 million. Do you have any suggestions…
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Curve for motion is not working
ERROR: Processing data for Spline [id=301001]. I have a spline which i have given as an input to a motion. But the above error is showing up. Please help, i have attached the mdl file
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ビーム要素の自由度を開放する例題
はじめに Radioss はビーム要素プロパティで、要素の 1番節点と 2番節点の端の回転自由度を開放することができます。 両方のプロパティにこの ωDOF フラグがあります。 ヘルプにこのように開放 (さすがに誤記だと思います) とあるので開放という言葉を私も選びましたが、要素プロパティ、要は要素の計算に関する部分ですので、節点の自由度をうんぬんかんぬんするというよりも、その自由度に対する剛性を 0 にしていると考えれば良いかと思います。 本記事では、この機能を使って、回転の剛性をゼロにする例題を一つ示します。 例題 ダウンロード: このようなモデルです。普通のビーム要素なら、上につられて、下も回るはずですが、…
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Why is there no bond data in my .H5 file? I clearly used the bond model
This causes me to be unable to use the functions related to .bond in edempy. I'm using EDEM 2023.1. Does anyone know why this is the case?
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Flux export to Hyperstudy
I am trying to export my model from flux to hyperstudy for Torque optimization purposes. I need the rms value of torque. also i have loaded the analyze 2D curve macro so as to get the torque IO params and also created an external python file for post processing ( i created it in VS code software) and added it to the same…
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TOPO EDGE IS NOT TERMINATED ON VERTEX HM_NODES
Hi, I am trying to generate 3d tetra elements on the solid and I am getting this error. although I made sure that all the nodes o n this edge are associated with the edge line. It is failing to generate 3d elements. 1) what is the reason for this error? 2) How can I overcome this?
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issue with periodic boundary condition
Hello i am trying to give periodic bc in x and y and put a chain of particles. The periodic BC is applied to x and y. bonded with bond35 api. The periodic BC is not working with bond35 api can anyone please tell me how to resolve this issue?
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Topology Optimization - DRESP2 - DEQTN
Is it possible to perform a topology optimization (obj=min mass) by setting as constraint the difference between two nodes? I understood that I have to use a DRESP2 and an dequation to link the nodes: the function I wrote is f(x1,x2)=x1-x2 I have many couples of nodes to monitor. If there is an example/tutorial how to…
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How to put a radial load on a load located on the axis of a shaft
Description: I need to study the loads on a rotating shaft and I got radial loads but I don't know how to place the load on a specific load located on the axis of the shaft. Product/Topic Name : hypermesh, RFORCE
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Understanding Altair Unit Licensing & Usage Display
Altair Unit Licensing – A Quick Guide To clarify how Altair Units (AUs) work: Each Altair application or solver consumes a specific number of Altair Units (AUs). 1 AU equals 1000 license features. You can run any Altair product as long as enough license features are available and the required product license features are…
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SimLab - HyperStudy Response정의 오류
파라미터가 정의된 모델링 파일을 SimLab으로 불러서 녹화를 진행해 Script에 해석하는 과정을 담았습니다. 녹화 종료 후에 Solution Browser에서 Response(Stress at Gauss points)를 정의했습니다. 하지만 HyperStudy에서 Test Model단계까지는 성공했으나 Define Output Responses에서는 아무것도 뜨지 않았습니다. 혹시 어떤 단계에서 문제가 있었는지 혹은 해결방법을 알려주시면 감사드리겠습니다!
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Rotor Dynamics Analysis for Multiple Rotors
Hello, I have a model that consist of multiple rotor which have different RPM's. These are connected each other with RGB's (Reduction Gear Box). I defined 3 different ROTORG Set for components that have different speed. But under loadstep I can choose just one RGYRO card. As you know RGYRO card includes ROTORG set.…
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EDEM hosted license stopped working.
I was using a 2023.1 version of EDEM with hosted license, and everythin was working fine until today. when i press "Start simulating" an error message apear. It says: "Unable to checkout EDEMSolver license, do you want to wait until a license is available?." Here’s what I’ve tried so far: 1.) i logged out of my account and…
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Please help me in MBD of this step climbing trolley, especially motion planning.
I have made the joints and contacts. I only need help in motion planning. ANy motion I give, some weird thing is happening- either its not moving at all or falling down the platform. I have given the gravity also properly. It would be great help if someone can guide me through this.
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How do I parametrize a non-radiating spice network in feko?
Hello, I am currently using the feature to add a non-radiating network to my simulation. I can create a simple spice net-list to implement my network, but I don't know how to parametrize it. I would need that to conduct parameter sweeps and optimizations. The model is simple enough that I can also input a formula for the…
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Pressure burst analysis
Hey , i have to do pressure burst analysis of a container. I thought of applying pressure on the walls of the empty cotainer and post-process the damage and displacements of the container's wall. Is it possible to solve in optistruct . If yes than ,how to do pressure loading at the internal walls?
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KJOINT2 ばねとの組み合わせで、ビームの並進自由度をフリーにする例題
はじめに Radioss はビーム要素の場合は、プロパティで、回転自由度をフリーに、回転自由度に対して剛性をなくしてしまうことができます。 しかし、上の図を見てわかる通り、並進自由度については、オプションがありません。 そこで、本記事では、KJOINT2 ばねをビーム要素に接続することで、並進自由度をフリーにするというのを模擬してみたいと思います。 KJOINT2 選定の理由 6自由度持つ、つまり 6自由度のばね定数を自由に決めることのできるばね要素特性は他にもあります。ただし、適切な質量、慣性モーメント、ばね定数を決めないと、小さすぎる時間ステップになってしまうなど、定義の難しさがあります。 一方で KJOINT2…
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What is the Default Value of Radioss Input Cards?
Abstract In this post, I explain the rule of Radioss default value of input cards. Rules No. 1: Blank → 0 When we create Radioss cards, we notice that there are many parameters which we do not input. Radioss treats those blanks as 0. No.2: 0 → Default value Radioss sets the parameters which we set to 0 or leave blank to a…