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Found 34 results

  1. Hi everybody ! I try to simulate a uniform compressive test with Radioss. I have already do this with law 70 and I succced. But When I use law 33 ( visco_plas) I can't simulate the "densification region " : the difference between green et blue curves. Between law 70 et law 33 I keep the same model and I just change properties and material of foam. Thanks in advance for your help. I copy my material law 33 and properties associated. NB: I have blocked with a rigid body and boundary conditions the face without part in contact. The blue part is the impactor , which applies a constant velocity normaly to the face.
  2. Hello, I need to know if it is possible to simulate tools that rotation in opposite directions to form a blank (see attached image for a visual explanation). Note: In green is the blank which is the profile of a cylinder. Thank you in advance KBE
  3. Hi, I've been trying to run a CFD simulation using the Hypermesh solver, however, I always get the same error (ERROR: error occurred executing acuPrep) and I don´t know what it means. Can anyone tell me why this happens and how to fix it? Thanks.
  4. I'm having a weird issue, and I'm hoping there's a simple solution here. I made a patch antenna with a rectangular cut out. When I simulate it without requesting a far field, it gives me results that seem physical. As soon as I add the far field request, my reflection coefficient plot yielded non physical results. Nothing changed about the model, I simply requested a far field.
  5. Hi ! Someone know a way to estimate the time to finish simulation at the begining or the time left before the end of simulation ? Because I try to simulate my model , a simple model, but after 3hours the simulation is not yet finish... May be exist ways to estimate if this or this parameter increase my simualtion time Thanks for your help ! My model if a personne know evidences in my parameters.... modele_eric_modifv3.hm
  6. Hi, Does anyone know if Flux2D have the function of terminate the simulation at desire condition? Let say, I want my simulation to stop when the center point of the substrate hits the melting temperature. 'Best. Jerome.
  7. Hi, I'm using Activate with student license and i had this tipe of error with simulating modelica blocks. I've installed the Visual Studio Community 2019 with C++ and Windows 10 preview SDK and MSVC v142 before this installation i had no possibilities to start a simulation because of the error that modelica needs a c++ compiler. Anyone that can help me? is this a common error? Thanks for the attention. Arnigaber
  8. Dear sir, We are commercial users of Hyperxtrude software 11.0. We use the software for simulating the extrusion process and optimization of parameters. Now, We need to simulate hot compression testing of samples. Is it possible to simulate the compression testing using hyperxtrude where the profile of the sample changes continuously with time. I need to generate the sample profile with time, first in extrusion, then in compression testing. Kindly help me.
  9. Hi, I am using the Incremental Radioss in Hyperform. It would be of great help if you could help me with the procedure for adding or editing the FLC curve (forming limit curve) for the material in hyperform. The tutorial says it has an option for FLC under the setup tool. But I could not find that option in the setup menu. I am using the Hyperform 2017 full version. kindly guide me. Also, can you kindly help me with evaluating the result file. I am not getting the .res file even after the simulation gets over. How do I get the .res files? Or how can I evaluate the results without that file. Thank you and help me as soon as possible.
  10. Which meshing method is used in NovaFlow&Solid?
  11. How can you setup the system in order to reduce the simulation time of different parts?
  12. Hi guys, I truly need your help. As you can see in the attached picture, I'm trying to understand if the initial inclination of the pneumatic cylinder has any effects on the torque needed to tilt the arm. I imported the CAD into my motionview model (Cylinder in vertical position) and I would like to know if there is any way to rotate the cylinder and its components (cylinder case and piston). I tried to achieve this result by defining the position of the Center of Mass as a function of the inclination angle (expressed as a solver variable, in order to optimize its value by using hyperstudy in a second moment), but I'm afraid that I simply translated the center of mass instead of rotate it (see picture), in fact the floating marker associated to the piston is not tilted. How can I achieve this result? How can I rotate the graphic too? (I tried with "orientation" but I cannot fully understand which angles it desired as input) Thanks for helping me in this matter.
  13. Hi, The question is: In general how does FEKO simulate lumped elements? Particularly for very high frequencies, where wavelengths are of the same order as the size of the edge port and adjacent faces. In detail: I'd like to know how to properly set a simulation to calculate structures with discrete elements (e.g. capacitor) when real dimensions (capacitor in package) of the elements are near-wavelength (1/6 lambda in this example). I know that an edge port could be used to simulate lumped circuits but I wonder how does the size of the edge port and adjacent faces affect simulation results. The edge port could be also loaded by using S-characteristics of some element, e.g. diode (package with real length of 1/6 lambda), but the S-parameters that are given correspond to a reference plane, which is defined on both ends of the element package. The problem is that in FEKO the diode would be represented by the edge port, that has length of zero. Is there any way to properly simulate lumped elements in packages in so high frequencies? Maybe there is another way of simulating lumped elements except the edge port? EDIT: By structures I mean Microstrip, Slotline, Stripline planar circuits.
  14. Dear sir, Can we simulate Co-extrusion of two different alloys. We require the thickness of each material in the final product. Kindly help me out the procedure for the same. Thank you
  15. Hello, I am using hyperform to evaluate the springback compensation of a component. I created the parameters and saved the '.hf file'. Then while running the analysis with the saved .hf file, the command prompt opens. It could not run the simulation. It shows the error 'noh3d -nproc 1' and 'the system cannot find the path specified'. Have attached with the screenshot of the error. Kindly refer to it and help me regarding this. Thanks in advance.
  16. ın radios, while continue simulation can I monitor the results? I wonder how is proccesing the solution and I want to see simulation while radioss run (until solved time step)
  17. Do you have video lessons of the software? Like self-instructing videos?
  18. Hello, I have not been able to sucessfully finish my analysis because of a fatal error. .OUT file says the following error "1 error have been detected in element processing procedure in processes with id = 5. Plese check the corresponding out file for details." What is a process ID? I have encounter this error before with differtent id numbers, but have not figured out what it means. My model contains Hinge joints and is a NonLinear quasi-static analysis. Thank you for your help.
  19. How can I see, in the simulation of the propagation of all antennas (RUN PRO), the total power of all antennas? I am only able to see the power/field strength/etc. of only 1 antenna per time and not the power/field strength/etc. of all antennas together.
  20. Hello, I am trying to run a CFD on a model in VWT in order to eventually extract the pressure on the surfaces to place them as node pressures on the same model in optistruct. Currently I am having problems getting VWT to run successfully. I have been through the troubleshooting webpage (http://forum.altairhyperworks.com/index.php?/topic/13776-workflow-for-virtual-wind-tunnel/&tab=comments#comment-20229). The Run parameters I am using are: The vwtAnalysis VOUT file is as follows: The vwtAnalysis MeshSim file is as follows: This suggests there is an error in line 65 but i do not know what this means. I am not getting a mesh intersection file if I intersect the model with the wind tunnel boundary. However, I obtain a CAD.DIR but not a MESHSIM.DIR the output folder. The link to the Nastran file: I hope you can help.
  21. What is the different casting materials that can be simulated and what defect types can be detected?
  22. How can we present/transfer simulation results to a customer or other partners?
  23. Hi every one, I have a result of a coordinate of a plate from Hyper mesh and I am wondering how can I integrate it in Feko to do an electromagnetic simulation. For more details: the file is “.csv” one which is the result of a meshing of Hyper mesh of a plate (I can have other extension in Hypermesh output). I thought about a script but I don't know how to write it, maybe it’s already written in the Feko setup file. Thank you for your help. Samir
  24. Hey! I am trying to perform a structural and transient analysis on a Roller Element Bearing model. I am able to perform simple static analysis but I would like to utilize Hyperworks to simulate the following conditions: Inner race to be rotating with a constant velocity and a fixed radial load is applied. Outer race is fixed. The balls should also be rotating. I wish to know: 1. How I can give a constant velocity to the inner race of the bearing while also allowing the balls to rotate? Which card am I supposed to use? 2. What kind of contact constraint should I apply. Right now I am working with slide contact only. 3. Is quasi static analysis adviced or implicit non linear? There is one video but in a different solver which does what I have been trying to do. I wish to do it in Hyperworks. Here is the link: Also please suggest whether optistruct's non linear can be used or whether I should switch over to a different solver module! Cheers
  25. Hi, I am using Incremental Radioss. There are few default material available in the database. When running the simulation with those default material, the simulation runs successfully (though it has 0 errors and 2 warnings. The warning is related to the material property). But I am using a different material which I add it in the database manually. When running the simulation with the manually added material, I get the error in simulation running or the simulation gets stopped in the middle while it is running few animation files. In the summary page, I get 0 errors and 2 warnings, the same one which I got while running with the default materials. The difference is that, the simulation gets over when running with the default material but it isn't getting completed with the manually added materials. The material I am adding is DP1200 steel. Have attached with the screenshot of the error. Error : 2 warning id :1084 Warning in material law1 When referring to material law1, it says it is related to the elasticity of the material. But I have given the input values properly. Kindly help me as soon as possible and thanks in advance.
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