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    • Rahul Ponginan

      Please click here for a short but important announcement   03/26/17

      Dear Users Our Commercial and Academic users around the world can use these same forums here as before i.e. the Altair Support Forum , Commercial users from India with solver queries can go to the Solver Forum for India Commercial Users , Academic Users from India and AOC India Participants are requested to go to the Forum for India Academic Users and AOC India Participants , We will be tending to all queries in all the forums promptly as before, thank you for your understanding. 

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Found 303 results

  1. Dear sir/ Ma'am, 1) I have a 3D model for which I wish to do Hex meshing. I have divided my model in several parts and I could hex mesh some of them. But since I am not able to hex mesh all of them I want to go with a mixed meshing i.e., tetra meshing for the remaining parts. May somebody please tell me the way to achieve what I am wishing to do? [Please tell me the path to the suggested options in the hypermesh] I could have meshed my model completely with the 2nd order tetras but I want to have hex elements at the contacts. 2) Please, also tell me if there is any problem in using mixed (hex-pent- tetra) meshing in the transient (explicit) analysis. What type of elements (including for 2d meshing) are suggested for a transient structural analysis of a large assembly (also for the individual components) having loads applied for milliseconds? [It's not the case of crash analysis] Thank you in advance!
  2. Hi, I have created a tcl script that captures screenshots (.jpg images) from Hypermesh screen. The script works fine when I execute it in interactive mode , but fails when I try it in batch mode. So, is there any way to capture images in Batch mode? API used in tcl script : *jpegfilenamed "Model_iso.jpg" Command in .bat file : call %ALTAIR_HOME_DIR%\hw14.0\hm\bin\win64\hmbatch.exe -b -tcl captureImages.tcl >> captureImages.log 2>&1 Thanks, Roshan
  3. Hello everyone I am trying to setup abaqus model from hypermsh. I am new to abaqus solver. I already have reffered help from altair on the same. Any other help available on this topic please provide with link. Thank you
  4. Which format file we can import in Hyperview NVH Utility for Modal participation Analysis? & What are the cards to activate to extract the output format for modal participation factor analysis from Normal modal analysis / FRF analysis ??
  5. Hi, I meet some trouble when using fatigue process feature in Hypermesh. I already learned the tutorial part about this feature and I knew every step. However, when I build a very simple model (a cubic), applying the force on one side and fixing the other side, exporting to .fem format, then repeated these steps again, I couldn't get any analysis results. The analysis was successful, but both life and damage showed no number when I switch to the contour plot. I also defined the shell component on the surface, like what the tutorial does. Can anyone help me figure out what step do I miss? Or some small details I forgot to consider? Thank you.
  6. Hello All, I am trying to create a cantilever beam model that can only move in - or + x direction. I found a thread about this topic and tried to use CGAP element, however, I cannot figure it out. Thank you. 3d.hm
  7. Hello, I'm using hyperemsh to carry out a dynamic analysis with LS Dyna implicit solver. I'm using Hypermesh 14. I'm trying to do a frequency analysis but I can't find the keyword FREQUENCY_DOMAIN in the solver browser. The version in the LS Dyna user profile is the 8 so there should be the option for frequency domain analysis. Any ideas? Thanks, Stefano
  8. Hi , What is the differences between ASET1 & ASET card in Optistruct?
  9. Hi, How to Clear the temporary nodes? Find the following Image. It is not cleared even it I use the option ( Shift +F2) and it is showing in Post processing. Is there any other way to clear?
  10. My second line of toolbar which contain visualization icon with all other icons is missing. I tried the view option but the whole second line is missing. What to do?
  11. Is that possible to have the meshing in Hypermesh and analyzing it in ANSYS, if yes how can I import my meshed model through hypermesh to ANSYS.
  12. Hey, Is there a possibility to export the results of the "Drape Estimation" (elements or surface of the Flat Shapes) ? Obviously there is a graphic result, but its neither elements nor a surface. thanks
  13. Hello, I want to make a screenshot of my current view on the model in Hypermesh, preferably with a white Background. So far I found no Information on that online or on the Altair websites. Any ideas? I would like to make some changes to my model and take one screenshot after another, documenting the changes. So working with Hyperview instead is not really an option for me. Greetings Niclas
  14. I am a beginner for hypermesh customization. Want to know what are the prerequisites before i enter customization. And how do i set up the environment for customizing Hypermesh.
  15. Having transparent elements with a dot at its center and also having surface meshing instead of a tetra 3D mesh Can anyone solve the issue?
  16. Dear Community, I would like to present you a possible bug I found in Hypermesh 2017 when it creates the input file for optistruct including a buckling analysis (due to limited time, I have not checked if the same problem appears with other analyses). Please find attached an example and refer to the example for the description below. When you try to create the Optistruct file to run (for analysis only, -optskip), Hypermesh creates the following subcase card for buckling: SUBCASE12345678 LABEL Linear Buckling ANALYSIS BUCK SPC = 1 METHOD(STRUCTURE) = 3 STATSUB(BUCKLING) = 1 The first row is missing a space and the solver gives you the following error if the space is not added manually: *** ERROR # 1461 *** in the input data: Card "LOAD" is not allowed for this subcase type. The problem seems to be present only if the loadstep ID is made by 8 digits. I hope this will be helpful to somebody. Regards, Alessandro buckling_issue.hm
  17. Dear All, I want to make electrical simulation combine with thermal (heat transfer) aspect on complex assembly. I've made the FE model with hypermesh optistruct profile and export as .fem file, but I can not import it to FLUX. Is there any way to do it? Please, need your advise. Thank you, Best regards, Iron_Man
  18. Hello, I'm modelling a complex structure in Hypermesh with Nastran profile and I need to connect two components. One is a tube meshed with pshell elements while the other is a solid meshed with psolid. The tube is perpendicular to the solid surface but I cannot have the same mesh for various reasons. In Abaqus I would use a tie constraint between the edge of the tube and the surface of the solid but I can't understand how to do so with Nastran and Hypermesh. I tried to use the cards BSURF, BCONNECT AND BCTABLE but I'm not able to figure out how they works. Any suggestions would be highly appreciated. Thank you! Stefano
  19. model files

    Hello, I'm going through this eBook from Altair "HyperMesh Desktop Introduction Pre-processing for Finite Element Analysis". Each chapter end with a exercise which required a model file to do. I got most the model file but for last few chapter like 1D Meshing, Morphing i cant find the model file anywhere. If anybody any link to download these model files please share it, thanks
  20. Hallo Everyone, I have created an lattice structure unitcell (BCC) of 1mm x 1mm x 1mm in CAD with that I created a whole component of 10mm x 10mm x10mm so there are 1000 unit cell in my component. I imported that component into hypermesh and it shows 1000 individual components in the model section. I want to analyse the component by applying load on the top face by constraining all the dof at the bottom and do the convergence study ( mesh refinement) . My questions are 1) how can I combine or merge all other component 1000 individual components in to a single whole as one component, I think it would be better for meshing and further analysis. ( I have attached the file for your reference please take a look) 2) How can I create a rigid plate on the bottom for locking all the dof and also rigid plate on the top for locking all dof except vertical translation for applying loads ) Thats all my questions , Please take a look on my component . Anticipating a response. Thanks in advance. Kind Regards, Muthu. lattice.stp
  21. Hi everyone am working in Hypermesh(Aerospace) profile, i want to import load from excel which has nodal coordinates(or Element ID) and XYZ component forces . How to do this?? Thanks.
  22. Hi, I have a question which one is called as a Perfect mesh or Fine mesh? When or under which conditions, my meshing is said to be a perfect mesh? Thank you
  23. I tried meshing in a Fillet edge whose Fillet radius is 3. I specified element size of 0.5 but I cant able to cover the fillet surface entirely. I also tried on the fillet surface of intersection where Cylinder and a Flat plate meets. How to overcome this issue? I varied Element Size and Element density too. Thank you in Advance
  24. What does this size value indicate while creating a constraint for certain nodes in HyperMesh ?
  25. What is meant by card image? Why we are using? Thanks in Advance