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📅October and November Community Roundup + Important Announcement📣
Hi Everyone, Sorry for the delay in posting our community highlights and achievements for October and November. There has been a lot of going on, but we didn't want to overlook the great content and contributions for these months. So without further ado, let's jump right in. 📣 Important Announcement - Altair Support is…
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Altair Support is Moving to Siemens Support Center!
Hello, amazing Altair community! We're buzzing with excitement to welcome you to this dedicated space, created just for you as we embark on an important transition: moving Altair's support infrastructure to the Siemens Support Center. This is a big step, and we're committed to making it as smooth and transparent as…
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Upcoming Altair Community Events & Your Feedback Needed
Hi Everyone, As we look ahead to the final months of 2025, we're thrilled to announce that we have added few more sessions to our ongoing community series. We want to hear from You! Your ideas and feedback helps us create the experiences our community truly wants. Drop a comment below and let us know what events or…
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Community Champion of the Month - October, 2025
The Community Team would like to introduce the October Champion of the Month, Roger DeAngelis @Roger DeAngelis_21630. Roger’s path began in the early 1960s, when he bought his first ebony-and-ivory K & E slide rule. In high school, he was drawn to math, physics, and Newton’s laws of motion. He attended the University of…
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Altair RISE : Program to Recognize and Reward our most engaged Community Members
🚀 Altair RISE Program We're excited to launch an exclusive 6-month program designed to recognize and reward our most engaged community members! Whether you're answering questions, sharing solutions, or participating in discussions, RISE gives you recognition in the community while helping you grow your expertise. Progress…
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Altair Community Rewards and Recognization
The Altair Community is a space where beginners, experienced users, industry experts, students, faculty and our product specialists come together to share insights, collaborate, and find ways to take full advantage of our products. Engagement is at the heart of the Community and with the launch of our new and improved…
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The ground reflection of winprop
Ground reflections in WinProp are very confusing to me. How can ground-reflected paths be obtained in Indoor and Urban scenarios? For example, when I define a horizontal plane, only the direct path appears. Horizontal planes seem to behave differently from the vertical faces of buildings—do they not participate in the…
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Node sets not exporting in .fem solver deck
Hello, I am experiencing somewhat chaotic behaviors when exporting solver decks both through HyperWorks and Hypermesh interfaces. In both cases the outcome is identical. Here is the situation: I am having trouble exporting node sets to a solver deck file (.fem as I am using optistruct solver). I verified that the sets are…
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Exporting Stored Data
I am trying to compare simulation results from parameter sweeps of antenna geometries that I cannot fully parameterize using the parameter sweep macro as the parameter sweep includes making different numbers of copies of various structures. The PostFeko macro that combines data puts the results in "Stored Data", but when I…
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Unexpected End of File Error Altair Embed
While opening Embed file , I'm getting this error. It happened after power outage while I was working on the file. Is there anyway to get it back? 😭 Does embed keeps local backup?
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A problem in using multi-machine parallel for a feko(v2023) model
Hello everyone, I'm following the steps in the article https://community.altair.com/discussion/37216/how-to-run-feko-in-parallel-across-multiple-more-than-one-windows-hosts And have successfully finished remote launching from a windows host to another. However,problem occur when I follow next step,information box seem hung…
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API ParticleBodyForceV3_10_0
May I ask whether there is an example ParticleBodyForce API implemented using the IPluginParticleBodyForceV3_10_0 interface? I have encountered several issues while updating my API, and I was wondering if you could provide an example based on version V3_10_0. Thank you very much.
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Missing altair_lic.dat file/ Unable to connect to license server in student edition
I am unable to start Altair Inspire due to license errors. I have tried the recommended troubleshooting methods; however, the Activate button is not active. To resolve this issue, I ran the almutil_gui.exe file as an administrator,and I choosed system instead of user in license store. But I then encountered a SOAP error as…
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CWELD stress
How is calculated "bearing stress" for CWELD element? Thanks
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Problem when I activate sudent license on my computer !?
Guys, I need some help, please, someday ago, I reinstated the windows OS on my computer. I activated the Altair student license on Altair One and I installed the license on my old host ID on my computer. Because I didn’t deactivate the license on my old host ID, and I reinstated the windows OS so I can’t deactivate license…
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1D はり要素 CBAR で丸棒を表現する例題
始めに 普段、主にシェル要素やソリッド要素を使っていても、何かちょっとしたものを、一から CAD で造形してシェルやソリッドメッシングをする代わりに、簡単な 1D の、はり要素（梁要素）で表現したくなる時はあると思います。 はりの力学や、はり要素は非常に長い歴史があるので、OptiStruct も多くの機能があり、非常にややこしいカードのルールがあったり、プリの HyperMesh にも覚えきれないほどの機能がありますが、そういったことは、必要になったときに知れば良いことなので、本記事では、はり要素利用の最初の一歩として、もっとも設定が簡単な、丸棒を表現してみます。 はり要素に関係するカードの説明 まず、はり要素は CBAR…
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PSIM Thermal Modelling MOSFET(EON) new device half-bridge setup
Hello, I'm currently working on doing Thermal loss analysis. The part I'm working with is a half-bridge setup in EconoDUAL packaging. I was able to successfully add a new device and input all the parameters from the datasheet. However, I noticed some other models have it defined that it's a half-bridge setup under one…
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Altair slc simulating three antennae systems analyze co site interference using s parameters
RE: Altair slc simulating three antennae systems analyze co site interference using S-parameters Graphical Frequency Analysis https://github.com/rogerjdeangelis/utl-altair-slc-simulating-three-antennae-systems-analyze-co-site-interference-using-s-parameters/blob/main/cosite_interference_analysis.png Cosite interference…
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Altair License Manager v2026
Hello, I'm trying to find Altair License Manager v2026 for Linux but could not find one on the Altair One MarketPlace. Could anyone provide the correct link so that I can install our license properly. Your assistance is greatly appreciated.
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How to establish a bearing pair in Inspire？
In Motionview, bearings can be modeled through extension, but is there any method in Inspire?
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Altair Flux 2024 Topology optimization - definition of mechanical problem
Good morning, I'm performing a Topology optimization in Altair Flux 2024. I'm working with a SPMSM electric motor and i have a doubt about how to model the mechanical problem for the optimization. I defined the rotor as mechanical region, with E, nu, and rho. Then I set the boundary condition: Fixed for all the DOFs at the…
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directional scaling geometry in cadfeko
Hello, is it, or will it be, possible to directionally scale a geometry made in cadfeko? So far it is only possible to scale all three dimensions equally, whereas sometimes it is useful to scale only in one plane (e.g. keeping the Z scaling factor = 1). Thanks.
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Issue with Topology Optimization
Hello, I am trying for topology optimization for one of my design but it is failing. I tried 3-4 times and it ran for appx. an hour each time but at last it failed. It’s giving result up till min. thickness 80mm, below this it’s not solving the scenario. Kindly support on this matter as it’s somewhat crucial for moving…
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Hyperstudyでのエクセルマクロの設定に関しまして
ご担当者様 いつもお世話になっております。表題の件に関しましてお伺いしたく、ご連絡させて頂きました。 Hyperstudyにて、マクロ付きエクセルを使用して最適化計算を実施したいと考えております。エクセルとHypertstudyの設定につきましては、HS-1036: Set Up an Excel Model with a Visual Basic Scriptの手順を参考としておりますが、マクロの設定がうまくいっておりません。 手順では、マクロ名をSolver input argumentsに入力するとありますが、該当の欄は添付の通りN/Aとなっており文字を記入したり選択したりすることができません。…
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undefined symbol 'sign? y u do dis? | cant use SPM torque control block
Error compiling the file in TCC (Tiny C Compiler) Line :149: warning: implicit declaration of function 'sign' tcc: error: undefined symbol 'sign'
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Simsolid에서 사용하는 material 정보 문의
Description: Simsolid에서 사용하는 material을 GM Spec으로 정리된 list가 있을까요? 있다면 어떻게 받을 수 있나요? Product/Topic Name : SimSolid. GMW Material Spec of Sheet metal, rubber…etc.
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OptiStruct の陽解法で塑性ひずみを利用して要素を消す方法
始めに 本記事では OptiStruct の陽解法で、塑性ひずみを利用して要素を削除する例題を示します。 仕組み 塑性ひずみを基準につかうので、まずは、弾性材料の MAT1 に塑性材料の MATS1 を組み合わせた弾塑性材料を用意します。 MATS1 で降伏はしますが、MATS1 自体には要素を消すという機能はないため、その機能を持つ MATF も組み合わせます。F はおそらく Failure (破断) の意図だと思います。 MATS1 で決めたルールで塑性ひずみが進展し、MATF で決めた基準値に到達すると、その要素を削除します。 例題 ダウンロード:…
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SIM SOLID를 이용한 고무나 플라스틱으로된 part의 조립성 검토 사례 문의
Description: 현장에서 일을 하다 보면 고무나 플라스틱으로 된 PART를 조립할 때 힘이 많이 들어가는 경우 개선하는 활동을 할때 실물을 조금씩 조정하면서 진행하는 경우가 많은데 Sim solid로 이를 검증하는 방법이 있나요? 사례가 있으면 해석하는 방법과 함께 알려 주시면 많은 도움이될 것 같습니다. Product/Topic Name : Out Belt Molding, Door Applique, Glass run.
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たった 1要素の線形材料の大変形解析でも不安定になる例題
はじめに 大変形の非線形静解析が解けない理由は、大きくは２個あると思います。 一つは、接触のある問題で、接触の状況（離れるべきなのか、くっつくべきなのか）が収束しないときで、もう一つは、不安定になっていて、解を見つけることが原理的に不可能になっている場合です。 この記事では、後者についての例題を示します。 不安定というのがどういうことなのかを理解するために、まず、非線形静解析とは、いったい何なのか、その概念をつかむ必要があります。 こちらの図に示したように、非線形静解析とは、与えられた荷重に対して、つり合いの取れる変形を求めるということです。このように、荷重をどれか選んだ時に、変形の可能性が一つしかないのであれば、解けます。…
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Multi model optimization is it possible with these inputs
Using MMO, we are unable to obtain a unified response; instead, we are getting different responses for each load.
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Material assigment with composites in Radioss
Hi everyone, I am currently working on a explicit simulation with composites in Radioss. I am using the material law M25_COMPOSH and assigning the component the PCOMPP property with the laminate. However I keep getting the error that the component has no material assigned. Please, if someone can help I would be really…
