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Sergio
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Comments
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Victor, is possible to have different icons for solid and surface geometry on the tree? This would solve the confusion quickly.
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About material properties of the gasket... well I have to investigate, there are a lot of types and materials for gaskets, and they perform different at every temperature. I don't understand your material curve, is E vs Stress? You must find a way …
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You are right Disla, have checked and also I'm having only a 2d mesh. I would suppose that Mecway will give some alert as we are meshing a solid and get 2d mesh... so I load the model in Salome to find out that is only a surface, there is no solid a…
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With element size 50 I was able to get a smoth mesh. Anyway I would consider remove all the small radius of the geometry before meshing to get a simple mesh for this part. Also can be used simmetry.
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Awesome work! What material has used for the gasket? Probably you'll need more element in thikness to capture the compression effect. About video formats, I have uploaded some video capture to youtube and then just add the link here. Another way is…
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Hide the element surfaces and edges, then select node by number and you will see it in blue.
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Go to Menu/Edit/Select node by number... Regards
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Victor, what is the "Import from Library" option under Lab menu? Regards
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You are in the right track, from simple to complex things. Is a common mistake try to start with all the complexities to end leaving the project unfinished due to poor understanding or limitations on soft/hardware. About symmetry, probably is easie…
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Nice model Disla! Have you applied bolt preloading? You can do by means of CalculiX *PRELOAD card or using thermal contraction. Honestly I had best and quick results using old thermal method.
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When a say "simplify all the small features as radius" I meant delete the small radius and leave just the corners (and remove small holes and so on). Small features will not have big effect on modal results and will let you have a better mesh (less …
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You must simplify all the small features as small radius, fillets, holes that don´t affect the results and complicate the mesh. Even small parts as washers or others must be eliminated. Regards
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Nice project! I would work in the cad to get the midsurfaces, and then export every component as a single step or iges files to be meshed as shells in Mecway. Another way would be mesh as solid (but using a 2d mostly quads extruded to get hexas/wedg…
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Have checked the step, is a very bad quality shape probably created from a stl then converted to step (due to the big faceted triangled faces). In my opinion will be better to recreate the geometry in the cad because is a simple cilinder, than tryin…
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Hi Guillermo, just for check it, using CCX 2.14 I was able to solve easily your last model.
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I agree with Dave, very nice model
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As far as I know is perfectly possible, even if you don´t add or remove features (faces), the boundary conditions should keep in place. Just be sure to add the bc based on faces of the step, and not of the mesh. In case the bc were not reatached to …
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Just one tip, use three second order element in thikness, lineal elements can underestimate the deformation for sheet metal parts. Your part is very regular, can be easily meshed as a revolution mesh.
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By the way, the actual sector has a bad angle, about 9.xx degrees, so there will be more than 36 sectors. That's why in the results there is a small gap between sector, and I was forced to use the CHECK=NO option to be able to solve it anyway.
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Now I'm not remember well if is included or not in the Mecway interface, but you can add the card by means of custom CCX data on the tree. Check the attached model
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In case of using CCX solver, check the generated input file and look for this line. N is the number of sectors that makes the whole goemetry, and NGRAPH is the quantity that will be saved on the results. For having a complete representation both num…
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If you work with the CCX solver there are three system variables that will let use n quantity of cores of your pc: • CCX_NPROC_STIFFNESS to create the element stiffness matrices in parallel • CCX_NPROC EQUATION_SOLVER to solve the system of equation…
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Export as .unv
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But do you have well defined (a partition on the faces) each thickness region? In that case can be done also en Salome creating groups of elements by face and then in Mecway assigning a different material/thikness to each group (previously you need …
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You can import all the steps in Salome and make a union (partition on Salome) of the steps to generate then a conformal mesh.
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Thanks for the support. I have removed the horizontal constrain to be more like the real situation, after that both models shows about the same deflection (20mm). For the lineal model, internal solver gives the same result, didn't try yet with the n…
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Probably if you solve directly with CCX you can use CGX with batch commands to postprocess and get the stress/strain plots, results and then you can link to your report generator program.
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I don't have Mecway on this PC installed, but you need to define first the node set and after use the custom CCX feature on the model tree to enter the card exactly as I write (if the orientation of the model agree with the picture).
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Hi, have made some stents in the past. You can use the CCX card *TRANSFORM to relate the inner nodes of the stent to a cilindrical coordinate system: *TRANSFORM,NSET=NSET_INNER,TYPE=C 0.,0.,0.,0.,0.,1. Also, your model is simetric, so you can use…
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Hi, have you tried with CalculiX solver and *CYCLIC SYMMETRY MODEL card? I have tested for static analysis and works very well, it allow you to create a very good model (fine mesh) of one sector and then compute the results for the whole part (even …
