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Comparing FEKO Results in .out and POSTFEKO
Hello, I am having some trouble comparing the results that are displayed in POSTFEKO and the results in the .out file. I made a script that imports the far field values in MATLAB and when I use these complex field values (in Volts according to the .out file) and calculate the RCS in dBsm the values are different than the…
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Alignment error
Hello all, I am trying image correlation in Hyperview using image planes. However, whenever I am trying to alignment the nodes and the pixels from the data that I have, the error value is always going beyond 1500 and both the videos are not getting aligned. Can somebody suggest me how I can align the simulation videos and…
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Superelement INTERNAL PROGRAMMING ERROR 8008 rergdc
I am trying to perform a superelement in a model (acquire the .pch file) and I am able to do it with simple, small models (examples, tutorials, etc); none the less, when moving to big models I'm acquiring the following error: ************************************************************************ A fatal error has been…
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*** ERROR # 3413 *** Domain Decomposition mode does not support ASET or CMS.
Hi! I'm trying to acquire the stiffness, load and mass Matrices for a supermodel based analysis and this error in the out file comes up with no more information than the following: *** PROGRAM STOPPED: FATAL ERROR(s) ENCOUNTERED. ***** END OF REPORT ***** For Useful OptiStruct Tips and Tricks, go to the URL:…
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Component mode synthesis reduced-order matrices do not match analytical solution. Bug?
I created a component mode synthesis model of a cylinder to export the reduced-order mass and stiffness matrices; however, when I compare the matrices to those determined analytically, I see completely different results. This results in two very different solutions to a flexible body dynamics model. The cylinder has two…
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Problem bolting multiple parts
Hi, I'm having some problems with connecting multiple parts. So in my design, I have 5 parts that are joined by one long bolt. The parts I've already meshed using CTETRAs but I don't know how should do the bolt, since 1D rigids cannot be used to connect to multiple components. Thanks Pedro
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hi, I can't import files in simsolid. Every files said error. What can i do?
I have dis problem with all files. I need import file for autocad and i try with differents programs for example solidworks but is the same problem. Thanks for your help
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Sliding mesh for 6 blade radial fan
Hi I am doing sliding mesh analysis for 6 blade radial fan, while solving i am getting an error as "Severe distortion in specified mesh" i have tried with different mesh (global element size 3 and 5mm) and reducing initial time increment, can anyone know how to solve this type of error
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Incremental load output
Hello all, I am running a non linear quasi static simulation. I would like to get the incremental load results output from 0 to 1 in the intervals of 0.1. How do I define it in NLPARM Card? Can someone help me out? Thanks and Regards, Punith
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How to optimize a Activate file in Hyper study?
Hi, I need to optimize a activate model in the hyper study but I don't find any way to implement activate in the hyper study software. Does anyone have any solution for that? The activate model is block-based and I need to connect it to flux software in the hyper study for optimization. Thanks in advance for your help:)
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Hypergraph "resolved in Analysis mode or Global Mode" question
Hi guys, Very quick question but I wanted to just ask the community since I'm getting less-than-anticipated results for my sim (just making sure I'm doing this correctly). I'm collecting heat flux through a plane in Hypergraph so that I can calculate thermal conductivity. I've been collecting data by utilizing the "query"…
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1D Composite Beam
Guys, do we have 1D element with laminate properties? I have 2 nodes and line between them. Is it possible to create beam/bar made of plies (ply1,ply2,ply3,ply4). I want to create truss with composite beams. Thank you!
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PB Flux
Bonjour, J’ai deux questions d’ordre générales sur le fonctionnement de Flux La première concerne la variation de l'épaisseur de peau lors d'une résolution MH-TH En effet, je sais que flux ne prend pas en compte la variation de l'épaisseur de peau en fonction de la température (en fonction de la résistivité et la…
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*** ERROR # 1000 *** in the input data: Incorrect data in field # 7.
*** ERROR # 1000 *** in the input data: Incorrect data in field # 7. This line was interpreted as: 2727236:RBE3, 17114232, , 15008653, 123456, 0.945518, 0, 15521090, 0.0444824 *** ERROR # 1000 *** in the input data: Incorrect data in field # 7. Expected COMPONENT numbers, found INTEGER (0) How do I fix this error? It…
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genetic algorithm
has Optistruct genetic algorithm solver ?
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optistruct optimization
hi dear moderators, I conducted a gauge optimization study by the optistruct, but it completed by just a iterations and it had said the design was infeasible. how is possible? what is problem or what should I do ? thank you for quick reply PLS help
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How to merge the faces of 2 surface components under certain distance? (geometry files attached)
Hi all, I have 2 components imported from 2 .stl files. And now 2 surfaces with many egdes have been generated from stl mesh. As we can see from the image below, in the up-right corner, some part the geometry was masked to show inner part of the geometry. And the 2 surface are crossing with each other, because physically…
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Spring 4 Usage
What is a SPRING4 and how do we use it in Radioss?
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Node has no stiffness. Stiffness matrix is singular
I created a simple component mode synthesis model with a CBN method, but the stiffness matrix that I exported in a *.pch file has a determinant of zero. This is causing my model to be ill-conditioned. I tried finding where the cause of this problem was, and I came across these warnings. I'm note sure what they mean, but…
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How to expand the tab area using code
I am trying to expand the right tab area of hypermesh GUI using code. Manual step: View >>Tab area>>Right is there a code that dose the above manual step ??
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Lay Flat Sheet onto Round Metal Block using Contacts - What am I missing? [HyperMesh / OptiStruct]
Hello Everyone, I am currently trying to do a small exercise to get to know the contacts better in HyperMesh/OptiStruct. For this, I created a flat sheet as a ply laminate and a round metal block made from steel. Now, the flat sheet is supposed to be suspended in the middle by SPC and the rest of it shall "fall down" onto…
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Radioss Section force from connect element
I have a simple model with cohesive element in lap shear test i put a section on a midlle oh hexa elment if i plot force from rbo that pull the specimen i get some data , therefore in i plot th/section all data is 0. Does Radioss not support section made with cohesive element? tks.
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Is there a tool in Hypermesh to create "linear Gaps" (like the utility in Patran) i.e. SUPORT,SPOINT,SPC,MPC
Modelling Contact can be a complex subject. I have worked many times with Linear gaps in Patran/Nastran, which I have created using the Patran utility. In the 2019 Optistrut user guide it refers to the use of Fast Suport based contact, and it shows an example formulation, that looks very similar to the cards created by the…
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problem with meshing
I am traying to run de virtual wind tunnel and it gives me this error: "can't perform mesh intersection between the body and tunnel" why? what is the problem?
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「設計領域にコネクターを接続しない」とは
トポグラフィー最適化において、最適化は問題なく実行されるのに、その結果の解析を行うと 設計領域にコネクターを接続しない：コネクターは、設計領域以外に適用することを推奨します という表示とともに、解析エラーになってしまいます。 ・コネクターとは何を指しているのでしょうか。サポートのことでしょうか。 ・最適化前は同じ荷重ケースで解析できるのに、最適化するとできなくなってしまうのはどの点に問題があるのでしょうか。