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Found 82 results

  1. Is it possible to do a 2D simulation of an aerofolio with Acusolver?
  2. Hello. I've been struggling with the simulation of a sensor consisting of a coil with a ferromagnetic core and a magnet. The main output to analyse is the voltage induced on the coil by a rotating target. I'm modeling the coil as stranded-coil conductor coupled with a series resistor (see attached circuit.png). When measuring the voltage across the coil, I'm looking at very high fluctuations in voltage (see attached results.png), if I take the derivative of the flux (flux.png) through the coil, the behavior is minimized a bit, but still present. Any ideas to improve this high variation? Thanks.
  3. The error code that I get executing "check physics" is: The lines :64 65 124 125 of the plan of periodicity have no linked discretisation. The mesh periodicity is not assured. The PERIODICITY PeriodicityNumberZaxis can not be taken into account Lines of the constraint without reference line: To obtain the same line mesh on lines, you may use a LINKED MESH_LINE I'm designing a quarter of a motor. The lines 64, 65, 124 and 125 correspond to the ones on the vertical axis. I'm using the periodicity setting to create the other quarters of the motor so that I get a full one. I've set Repetition number to 4, Offset to 0 and Odd periodicity. The mesh is automatically created with Mesh Faces. It has surface element with 98% of excelent quality and 2% of good. Checking the geometry doesn't give any errors. However I'm concerned that using cartesian and cilindrical coordinate systems on the same geometry may cause this error code. What do you think? I've tried creating a Linked Mesh Line. However It asks me to introduce a transformation that will define that Mesh Line, but I'm using a periodicity so it doesn't appear on the transformations menu. What can I do now? Thanks
  4. Hello everyone, I am having trouble exporting the mesh from Hypermesh. Some white spaces separating the fields are missing. *) With the RADIOSS profile, the first three nodes of the grid data look like this. 1 10.4352852680878 0.374999999999996 1.69690861652916 2 10.0920996147679-3.8857805861880E-15 1.59540682856021 3 10.2957517115474-3.5527136788005E-15 1.49409343503715 *) The situation is even worse with OptiStruct. The output file (first three nodes) looks like this. GRID 1 10.435290.375 1.696909 GRID 2 10.0921 0.0 1.595407 GRID 3 10.295750.0 1.494093 I don't want to create white space manually because the meshes I work with, in general, contain thousands of nodes. So, I need a proper solution for this issue. I am using the HyperWorks14.0 - student version. Thanks, Chenna.
  5. Hello, I have a 2D surface meshed using tria-shell elements (Img 1) which I would like to use as a reference and mesh it onto the solid object (Img 2). Presently I need to define equivalence between both components which results in element distortion due mis-matched element's position and size. How can I use the shell elements of the surface component to "project/map" 3D elements in to the solid component? The solid component was created using the base surface and 3 addition surfaces as bounding surface. Regards
  6. Hello, I want to make a thermal simulation of a cooling plate in hyperworks with the AcuSolve Solver. The geometry would be this: Where an aluminium cooling plate (the grey solid) is in contact with a water flow (blue volume). The problem is that I can't get a mesh with coincident nodes between both volumes, taking into acount that for the AcuSolve simulation I need two surfaces in the interface between the solid and the liquid volume. Do you have any solution for it? Thanks in advance.
  7. Hello riecently I start to work in your programm HyperMesh, I enjoy it very mush, so many posobilities! "Ngn vet inte vad han skall fästa blicken på", as we say. And becouse I am in the 3d printing theme. (Frankly, for me it is almost art! ) I really want to use your program for meshing some breathtaking geometries for my customers. They need some speciefic requirements in the main strength characteristics. Ussually I used Abaqus for this properties but for complex geometry it could be sometimes very tricky and I was recomended to use your program. Could you tell me how to mesh complex stl model in Hypermesh, please? As I uderstood, reading your forum, first of all I need to do open stl: File > Import > File type > STL; then I need to create a geometry from mesh: Geom > surfaces from FE (elems - all; feature edges; complexity 10) [sometimes Hyper writes that he failed to create some surfaces, wich is oddly]; And then I can`t create solid, Hyper writes created 0 solid elements and 0 nodes
  8. Hi, I have a structure made of 3d solid map hex mesh elements, ie. primitive unit cells (see primitive image attached). I have turned my hex mesh elements into bar2 elements. I would like to create a central node to the primitive unit cell and connect bar elements to this central node (see body centred cubic image). I know this will most likely be a TCL script problem but I'm not sure how the script would be written. I have successfully created the primitive unit cell and used config edit tool to create bar2 elements (CBEAM's) But I would now like to do this with elements connected to a central node. A comparison of what I'm attempting to do can be seen in this paper: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6265793/pdf/materials-11-02073.pdf I look forward to hearing from the community, Kind Regards, Laurence
  9. Hi, I am new Hypermesh and Alatir. I need to create a mesh for simulation. I just started using ANSYS and Hypermesh and i cannot figure out how to create a solid from .stl file. I need to assign inlet outlet, wall and mesh the entire volume. I have to figure out but i couldn't find any sources to create a mesh from .stl file. Thank you Volkan 449099_B_fixed.stl
  10. Hi All, I have to run in batch mode a tcl file, in which a meshing process is recorded. Is there a guide or some tutorials? The tcl is perfectly working if i run it from Hypermesh, but it doesn't if I use hmbatch.exe Thanks, Enrico
  11. hello, i have a problem with meshing a solid. first i have one solid which i have extruded to have two solid linked together (the surf between the two is yelow) before launching 2D mesh my geometrie have no free edges. after 2d meshing i see that a free edge was created in the intersection of the two surfaces of the solids. i tried to use the tool equivalence but it's not working. with the free edge created i cannot proceed to do a tetra mesh. if anyone have a solution i'll be grateful and thank you for your help,
  12. I am very much new to tcl .. It would be highly appreciable if anyone can help me with the logic I have a model and it somewhat looks like the one shown in the figure. the free space shown at the centre is also not exactly as that shown in the pic. It can be of any shape. The shape of the free space can be an hole or in a zig zag manner also. My OBJECTIVE is to fill this free space with MESH. So my logic is to find the free edges and mesh the center free edge area. Can anyone please give me some clue how to proceed? Is there any similar type of tcl available in script exchange?
  13. I am very much new to tcl .. It would be highly appreciable if anyone can help me with the logic I have a model and it somewhat looks like the one shown in the figure. the free space shown at the centre is also not exactly as that shown in the pic. It can be of any shape. The shape of the free space can be an hole or in a zig zag manner also. My OBJECTIVE is to fill this free space with MESH. So my logic is to find the free edges and mesh the center free edge area. Can anyone please give me some clue how to proceed? Is there any similar type of tcl available in script exchange?
  14. Hi all, Does anyone know if there is a tool in Hypermesh which says the average element size of a 2D mesh? I could use the measure tool and get the distance between two nodes of an element, but I am interested in get the average of all elements. Thanks in advance, Alex
  15. Why hex mesh is not solving in Optistruct? when i am trying to solve its showing some error. can you please help me with this. Awaiting Reply thank you
  16. Hello, I would like to tetra mesh my component from a 2D mesh of trias that already exists. The 2D mesh must remain constant as it has a load applied to it that cannot be changed. The problem I am having is that the tetra mesh option 'fixed trias to tetra mesh' produces large size elements in the middle of the model. I would like to constrain the maximum size of the 3D tetra mesh so its does not increase in size in this way. Is this possible? Thank you in advance
  17. Hi; I'm working on Hypermesh V13.0 and I have to mesh a cylindrical die oncoming from Solidworks ( Save as .STEP AP203). On Hypermesh I want to decrease the external diameter of the die for exemple I want to mesh the die with this different diameter : Ø40 / Ø35 / Ø30 / Ø25. This operation is possible with Solidworks but it's very long lasting because I have to mesh 14 die with four different Ø (--> 56 similary meshing). And for my simulation is better if I have the same meshing on every diameter. My approach for this is : 1st : I import geometry which is step file type : For beginning I import a die Ø40. 2nd : In "GEOM" tool menu I use quick edit for decrease my Ø; for this I use the washer split with an offset value : 2.5 (to have 5mm on the Ø). After I supress the older lines with toggle edge (the older lines are on dotted line). --> And now I fail to mesh my new geometry (with F12 tool menu) When I use (size and bias) : Surf --> Display --> Mesh : The older lines (dotted) are meshing. --> Surf --> By Window --> I select the lines which I want meshing --> The older lines aren't meshing () but I don't have mesh on the new external surface of the die as the die is hollow. --> OK // --> External surface NOK I think my approach for decrease the external diameter isn't good. I think I have to create a new surface but I just create news lines. For your information I don't have the center of my die in hypermesh I hope you understand my problem and you can help me. Jules PRUDHOMME.
  18. Hi all, I am using Hypermesh of Hyperworks 14.0 to mesh my Geometry and eventually load them into Abaqus (2016) to do the simulation. (Export as .inp Input Deck) I have a rather large assembly with at least 6 components at the detail of the simulation but also want to export the full assembly with >100 components. Now when I meshed all to-be-exported parts and do the export, all the exported parts cannot be loaded as seperate parts but as a combined part. That's not really helpful, as I need to allocate materials, loads etc. pp. My workaround currently to have seperate parts in Abaqus is to export all components seperately. However this brings me all parts as individual models in Abaqus which is not helpful when having >100 components. Also the Abaqus-Tool to seperate the mesh deos not help as there are parts intersecting each other and other parts which get falsely seperated. I also checked with Ansys, same problem, so it seems to be some kind of setting in Hypermesh.. Really appreciate any help and thoughts! Thanks in advance J
  19. hi everyones I try to simulate an antenna but I confront an error: error33238:Not enough memory available on the hard disk for an out-of-core file. in addition it has a warning by contents: warning 1663:Inhomogeneous segmentation for triangles. I use edge port to excite a quadridged horn antenna with coaxial cable. thanks in advanced.
  20. Dear all, Please help me figure out a tcl/tk code to generate a macro which would make temporary nodes, along the first mesh it encounters along the geometry line. The blue could be thought of as the initial state and orange as the deformed component. There is a requirement to calculate the thickness after deformation, and no fixed nodes could be allotted as component differs. It is possible to isolate the particular component as the names are known and the remaining could could be masked, and i wanted to know if we could get HM to project a temp node on the first mesh it encounters along the line of the geometry which is fixed for all components. (yellow line) Looking forward to few solutions of this issue. Thanks in advance for the help and support, Arjun Arasan
  21. Is it important to have smooth connected lines between different meshed components? What are consequences of not having the connectivity?
  22. Hello, I'm working on a model the third day and can't understand what is the mistake in the meshing parametres. Once I got to build and can't anymore, don't understand what the problem is. sector-100mkr-1gr-narost-001.acs
  23. Guys here i try to mesh a 3D model file and for which i made the 2D mesh on the surface using surface deviation with max min element size and growth rate. then i try to make tetrahedral mesh so i went to 3d-----> tetmesh and selected the 2D elements and gave simple pyramid and meshed it. But while the mesh was on progress error was coming as Input mesh is self intersecting and the mesh formed is only over the surface and it is formed as a seperate CFD trias......... here i have uploaded the snap shot of 2D mesh and corresponding percentage of failure in different 2D mesh checks......from 1 to 8 PICTURE denotes the element check from WARPAGE to JACOBIAN. CFD tria PICTURE shows the mesh formed by wen tat mesh was given. mesh formed over surface alone PICTURE shows the masked view of the inner Cross section self intersecting PICTURE shows the error msg tetmesh PICTURE shows the options selected for tet mesh and its window
  24. Hi All I know that in shell structures, when we have the midsurface, we verify that there are no free edges, what about two solid bodies, specially if I have had to trim the solid, since a part is revolutio and the other part is an extrusion, so they might need different meshing techniques ? how can I assure the mesh in continuous ?
  25. Hello, I would like to know the equivalent element of 2D Bernoulli-Euler in Hypermesh?
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