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How to get the plot of (beta/k0) dispersion for any antenna in FEKO? [V 2023.1 ]
I want to get the plot of beta/ko, which is basically a dispersion diagram, in CST, it is possible to get this, but in FEKO, how can I get this beta/k0 plot ? Could anybody please tell me?
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How to enable Node Coordinates (Tracked) in HyperView Query using TCL?
I am trying to get the Node Coordinates of a body in a local coordinate system in HyperView using TCL. Hence I am using tracking system option and using Query (Table) to fetch the results. How to enable Node Coordinates (Tracked) in Query using TCL? In documentation of I was not able to find the option to do this. Thanks…
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Unable to use tk_messageBox when executed in batch (noGUI) mode
When executing a script in batch (no GUI) mode in Altair HM/HV, using tk_messageBox does not do anything. The script executes the next step without any action. This issue seems to be observed first in v2023. I am using v 2023.1 and have not faced this issue in the previous versions. A solution to this would be much…
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Does other loads step affect the result of normal mode analysis?
Description: [I am studying optistruct, and I am doing the analysis of a bracekt with center mass load. I add 2 loadsteps , one is normal mode, and the other is Gload. I found the mode analysis result would be changed per the Gload analysis type. If the Gload analysis type is non-linear static, the modes will be 145HZ…
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How to create fastener vectors without geometry.
Hi everyone! This should be a simple question: how can I create fastener vectors without geometry? My component is a curved panel with holes for fasteners. I’ve already inserted RBE2 elements with a central node at each hole. Now I want to create a line/vector/coordinate system normal to the surface at each hole. I found…
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How can I fix this triangular mesh error 2331 and 31061 in this array? Feko V 2023.1
Hello, I am getting tringular mesh error in this conformal array antenna model, two traingles are overlapping in the mesh when I copied patch and feed from the main structure, kindly see my attached model here, Can anybody fix this meshing error in this array?
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How to use EDEMpy to edit particle properties.
Dear all, I'm having some trouble using EDEMpy to control particle movement in my simulations and would appreciate any advice. I've encountered two main problems: The particle velocity and position values I get from EDEMpy (using deck.timestep.particle.getXVelocities() and getPositions()) don't match what I see in the EDEM…
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Discrepancy between FlightStream 2023 and FlightStream 2025 results
I have plots between the two versions where the drag is close to doubled in 2025 compared to the 2023 results.
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HyperView 2023.1 display size of local coordinate systems
Hello everyone, When I import an .op2-file into HyperView 2023.1 the displayed local coordinate systems are shown enormous compared to my model by default. I can't even see my model: I tried to change the displayed local system size by: File → Preferences → Visualization → Coordinate System size but cannot reduce the value…
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How to obtain relative displacements in direct transient analysis?
Hi, I'm performing some linear transient analysis, I was able to get good results with the modal transient analysis. But if I try to set the same problem as a direct transient problem I get a rigid motion of the plate. I was having the same issue with the modal transient that was solved using the PARAM ENFMOTN set to REL.…
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Hyperview 2023.1 api to set the display transparency level.
Hello, Can you please share me the Hyperview api to set the "display transparency level" to a particular value. We used to do it manually by File -> Preferences -> Graphics -> Display -> Transparency level
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[Urgent] Increasing Load with no Difference in Stress or Deformation Values Bug
So I'm working on a Model where i need to apply 2 loads at 2 different points. The Force F2 in this is 26.2 N. To just test around the Model i changed it to 262N and then to 2620N, but the stress value doesnt change in the result. Is this a bug, what is the Issue, Urgent Help Needed. Attached the files. Regards, Adi
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I cannot access HyperStudy after downloaded the program
After I downloaded these 3 files HyperStudy student license 2023.1 (First image). Then I try to activate my student license in activation key and it said like this (Second image) (I'm not sure that because previously I downloaded Flux and FluxMotor and the license had already used?). Then I go directly to check my…
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Mirroring a graph in POSTFEKO
I have some sim data at 0-180 azimuth plotted in a polar plot. I'd like to mirror this data about AZ 0 to create a symmetric graph from 0-360 azimuth. How can I do this within the POSTFEKO environment? Thank you in advance!
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nFX[c] Execution Problem on Windows
Hi Experts, I have an nFX result and try to execute nFX[c] for post-processing, but the program does not progress anymore after the message 'Waiting for connection from nFX at "test"' pops up. I'm wondering how to solve it. The cmd is launched by double-click the set_nFX_environment.bat file. Thanks, Gary
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Optistruct Solver not using the specified allocated memory
Hello, I'm running an extensive topology optimization in Altair Inspire and it won't use more than 8 GB of RAM. This machine has 128 GB of RAM but when you open the topoOpt.out file it shows the following error. Please help, this is significantly hindering my performance.
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How can I add two copper patch on the edges of this half arc shape antenna?[2023.1 Version]
Hi, I am attaching here my model of the conformal antenna, 1. how can I see the feed location coordinates here? The measure tool is not giving me proper coordinates as global coordinates are at a distance from the patch center and it's a curvature so I can't get the proper X,Y coordinates of this feed. 2. How to add add…
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SimLab Automation, identyfying faces, bodies, creating groups
Hi everyone! I wanted to improve my quick scripts to enable submodelling procedures as well as to make the flow more accessible for other geometries. I've stumbled on some issues while trying to identify the ID of faces inside my model. Basically it is a housing part that is pre-cutted and therefore it has submodell…
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Is there any way to get time-averaged pressure distribution graph in EDEM post-processing?
Hello, My name is Keyu. I'm a student at Western university and I am using EDEM 2023.1. I want to know if there is a way to get time-averaged pressure distribution graph in post-processing. Thank you, Keyu
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E-drive : encode base frequency and speedpole
Hi team... I am using BLDC motor...in this motor magnetic encoder is provided with 4000 counts/revolution. However, here I am attaching file for encoder base frequency which you can use in your diagram and you can see within the compound block the implementations using band pass filters (LPHPF) and Speedpole (2000Hz). Can…
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Does anyone has problems with the element orientation tool in HM v2023.1?
When I try to use the tool and change the element orientation it takes really long. With many Elements to align (900k) it doesnt work or it takes very long (more than 30min.) What is the problem?
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在openradioss中使用Open MPI v4.1.2计算1.如何提升CPU的使用效率？2.是否需要关闭超线程？3.AVX512如何开启支持？4.open radioss计算核数是否有限制？
在openradioss中使用Open MPI v4.1.2计算1.如何提升CPU的使用效率？2.是否需要关闭超线程？3.AVX512如何开启支持？4.open radioss计算核数是否有限制？
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Server cannot start EDEM 2023.1, please help solve the problem.
Dear Altair teams, I can successfully start and use EDEM 2023.1 on my personal computer, but after deploying it on the server, I encounter an issue where the program does not start properly. When I click on the program, the window appears for a few seconds and then closes automatically without running. However, EDEM 2022…
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How can I remove this error in wire meshing? [FEKO 2023.1 Version]
Hi , My probe radius is 5mm in my model, I tried using Fine /standard meshing option in my model, but for both cases, there is the same error msg "The ratio of probe radius to length is very large" . My model is attached here. Kindly check the model and help me to fix this error message in my simulation. Thanks in advance!
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How can I reduce the time for simulation using this model? [FEK0 2023.1]
Hello, my simulation with general MOM solver is taking more than four hours when I run this design with only 30 number of points, I tried MLFMM to run it faster but MLFMM is showing "feko internal error", see the attached design model of CADFEKO and the .out file for MLFMM error , kindly tell me the way how can I run this…