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Found 598 results

  1. Hi, I have been using the 3D mesh options in Hypermesh but I'm not sure if this is the correct option. I have a question regarding the 3D solid map > one volume mesh. Does this mesh create elements inside of the geometry. I.e. my aim is to create internal quad elements in geometry, how can I achieve this within Hypermesh Kind Regards, Laurence
  2. Dear Sirs, I am now comparing the result of stress analysis done by 1-d element (by AutoPIPE) and 2-d element (by Hypermesh) on same model. According to the result, I got almost same result on model's deformation (displacement). So I thought it was successfully completed, then next I compared the other calculation result. However, as for the Axial force and Z-aixs moment, I couldn't find any similar result between the result of 1-d and 2-d. I assumed that axial force at certain position of pipe in 1-d is equal to the summation of "Element force" of "one lap" of 2-d pipe element, but the result was wrong. How do I obtain the axial force in 2-d model which is equal to that obtained in 1-d model ? Currently I was referring the "global system's XX direction" of "Element forces [2d]" but was I referring the wrong output ?
  3. Hi All, I am trying to capture error MESSAGE in hypermesh using TCL. I have one model in which property is not referenced. But still its not showing using preview unused command. So when i isolate the same property it shows error. I want to catch the error in hypermesh menu bar in a string variable Can anyone please help me ? Best Regards, Dhairyasheel Desai
  4. Hello, i am trying to calculate von Mises stress for a beam. The beam has a weird cross section and i already defined the section in hyperbeam. for properties i use PBEAM, since there is no cross section that is the same in optisctruct library. i have gave the value for continuation line 2, 5 and 6. in Output, i have requested stress for all type. There is no problem during the calculation and in the result type(Hyperview), it only shows Displacement, Element strain(1D) and Element stress(1D). Under Stress, i can only choose axial and long. stress, but i need von Mises Stress. How can i obtain the von MIses stress? thanks in advance
  5. I have a mesh in component1 and another mesh in component2. Is there a way to do a node equivalencing operation from comp1 to comp2? What I mean is, while I do this operation, I don't want the nodes on comp1 to equivalence to nodes on comp1 (no node equivalencing on the same component) Thanks!
  6. Hi everyone! Is there the possibility to mesh a surface with elements like in the attached image? Bests Martina
  7. Hi! I'm trying to mesh a solid with TetraMesh and it states the following error: "2 edges failed nodal setup. Meshing failed". But I can't see anything wrong or red colored or anything that tells me where the mistake is. Even with visualisation options. The solid is created properly with bounding surfaces so I guess there are not free edges. Could you help me?
  8. Hi! I tried “Tool – faces – tolerance adjust to 4 -- equivalent”, it turns out poor mesh quality and still not many nodes are merged. Then " Imprint" but elements should be shells. Is there an easy function? Cheers!
  9. Hi all, I am using VWT to run a CFD analysis on a prototype vehicle. I have attached a picture below to show the model. I have the model meshed using HM. I have already ran CFD successfully before, however, this is the first time I add the wheels to simulate their rotation. The analysis works fine and takes around 20 mins to reach 80 percent, and then stays at 80 percent for hours. I have attached the text files in the run directory, I have checked them and couldn't find an error, however, I might be missing something. vwtAnalysis.1.Log vwtAnalysis.1.MeshSim.txt wheels_2nd_try.stmod
  10. Hi! I have this problem couple of times by Hypemesh.:( I trim the Solid with lines – by vertor (z direction)- sweep all. Then the Solids turns out non- mappable. The same way with no curve of the solid, it still turns out non mappable. Some one can tell me why this is keep happening? Thanks in advance!
  11. Hi everyone, I am modeling a 3D hollow element made by more components in Hypermesh to conduct NLQS analysis with Optistruct. My system is symmetric and I want to know if there is the possibility to tell the software that the unmodeled part is the mirror of the modeled part, so that it considers the constraints due to the symmetry. I know the software allows to reflects elements, but I would like to not works with too many nodes. I attach pictures: 1 is the modeled/discretized part; 2 is the entire system (modeled, unmodeled parts) Thanks Martina
  12. Hi , I am working on modal analysis of rotor system in optistruct. I have queries regarding constraints. Pls find the following image which shows rotor assembly with bearing. I need to allow rotation free of rotor and shaft at bearing locations. How to give constraints at bearing locations ? Using RBE2 or any other options are there in Optistruct? Thanks Arul
  13. Hi, I need SCRIPT for automatically saving Hypermesh with an intravel of time. Please help anyone. Thanks in advance. Thanks, Dinesh chellaiya
  14. Hi Experts, I want to automate the assembly creation, I can go in 2 ways. 1. Create an assembly hierarchy in excel file and use the script to implement in my hm file. 2. Create a script to create the assembly hierarchy in hm itself using the user input (selecting the sub-assemblies and components together to form an assembly). Which option would be easier and feasible. I am just a beginner in TCL. Thanks in advance!!
  15. Hi,I am trying to simulate a bird impact on a plate with RADIOSS. So I am creating my model on hypermesh now, i chose to consider the bird as a fluid with a density of 438 kg/m3. I would like to work with SI units and the dimensions of the bird are : 0.1325m long cylinder with two hemisphere ends having a radius of 0.075m. I am now trying to mesh this geometry with the SPH module in hypermesh. So i entered a pitch of 1e-3m and a density of 438kg/m3 as i said before. But when i create the mesh, nothing happen and i only get this message "0 mass elements created". I attached my file with the topic. I don't know what could be my error, more of that I tried to do it using mm instead of m and it worked... But I really want to use SI units. Thank you in advance for your help, Gaspard. BirdStrikeSI.hm
  16. Hi, I am trying to simulate a bird impact on a plate with RADIOSS. So I am creating my model on hypermesh now, i chose to consider the bird as a fluid with a density of 438 kg/m3. I would like to work with SI units and the dimensions of the bird are : 0.1325m long cylinder with two hemisphere ends having a radius of 0.075m. I am now trying to mesh this geometry with the SPH module in hypermesh. So i entered a pitch of 1e-3m and a density of 438kg/m3 as i said before. But when i create the mesh, nothing happen and i only get this message "0 mass elements created". I attached my file with the topic. I don't know what could be my error, more of that I tried to do it using mm instead of m and it worked... But I really want to use SI units. Thank you in advance for your help, Gaspard. BirdStrikeSI.hm
  17. how to subtract two tetramesh components from one another in hypermesh? I was having stl files, then I have converted them into 3D tetramesh. Now i want to subtract volume of one part from other.
  18. Hi everyone, I modeled an element in Altair Inspire, then I imported it in HyperWorks as a Solver deck. The mesh is created by Inspire, is there a procedure to refine the mesh o remesh the object? I tried to remesh some volumes, but the longest side of the FEs was not divided. Bests Martina
  19. Good morning, I'm running a transient analysis of 2 gears (one of them with a preload and the other one with an imposed rotation). When I run it with Optistruct I get 2 problems: *** ERROR # 4965 *** Maximum number of time increment cutbacks reached, analysis aborted. The biggest problem comes here, if I analysis the results, the contact status is 0 everytime. The gears rotate but they don't seem to have a good contact. Moreover, I get high normal contact forces at points where there should be any contact (see image attached). I also attach the .fem to make it quicker and the .out from the previous simulation Thanks!! 1107rem.out 1207manana.fem
  20. Good morning, I'm running a transient analysis of 2 gears (one of them with a preload and the other one with an imposed rotation). When I run it with Optistruct I get 2 problems: *** ERROR # 4965 *** Maximum number of time increment cutbacks reached, analysis aborted. The biggest problem comes here, if I analysis the results, the contact status is 0 everytime. The gears rotate but they don't seem to have a good contact. Moreover, I get high normal contact forces at points where there should be any contact (see image attached). I also attach the .fem to make it quicker and the .out from the previous simulation Thanks!! 1107rem.out 1207manana.fem
  21. Hello, I am trying to assign a failure criteria based on strain. For example, I want to be able to remove or replace the material properties of elements that reach 0.9% strain, or do the same thing when the principal strain of an element exceeds 10000 microstrain (these figures are from literature). The MATF card only takes stresses. How can I implement these strain-based criteria? Thanks.
  22. Add the following codes (change to your needs) into "hmcustom.tcl" : set mypath "C:/Users/MYNAME/myscripts"; set top_menu [hm_framework getpulldowns] catch {$top_menu delete [.hmMainMenuBar index "MyMenu"]} catch {destroy $top_menu.custom} menu $top_menu.custom -tearoff 0 $top_menu insert 20 cascade -label "MyMenu" -menu $top_menu.custom set cat1 $top_menu.custom $cat1 add cascade -label "Category 1" -underline 0 -menu [menu $cat1.mnu1 -title "Cat-1"] $cat1.mnu1 add command -label "Script 1" -command "source {$mypath/script1.tcl}" -underline 0 $cat1.mnu1 add command -label "Script 2" -command "source {$mypath/script2.tcl}" -underline 0 $top_menu.custom add separator set cat2 $top_menu.custom $cat2 add cascade -label "Category 2" -underline 0 -menu [menu $cat2.mnu2 -title "Cat-2"] $cat2.mnu2 add command -label "Script 21" -command "source {$mypath/script21.tcl}" -underline 0 $cat2.mnu2 add command -label "Script 22" -command "source {$mypath/script22.tcl}" -underline 0 Start HM and you get your customized menus, see screenshot.
  23. Hello everybody . Please support for me ! For example, i have 5 components and set properties . I want to edit card element . Convert option from BLANK to OFFSET . Offset value = 1/2 thickness of component . Then show 2D detailed to check Thickness . How to write a tool tcl to perform that operation ?
  24. Hi everyone, I am modeling a system composed by solid elements that are welded together. I want to develop tetra mesh from 2D automesh at the contact surfaces, but when I create the 2D mesh on the adjacent surfaces they are different and this leads me to an incorrect 3D mesh because after tetra meshing I equivanlence the nodes on the adjacent surfaces and the mesh elements fail. I use "keep connectivity" when I create the 2D mesh, but sometimes the meshes are equal, sometimes they are quite different. Why? What can I do?
  25. 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?
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