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Sergio
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I´m waiting the Hextreme integration too, looks interesting, but in my opinion for a good hexa still we will need to do the work by hands. I saw several of this automatic tools, and for complex geometries they create too much elements, or fail to re…
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CCX 5.0?????? Or Gmsh 5.0?
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The trick is avoid the straight line in the partitions/divisions of the orange surface. The curved partitions must start about the half of the radius
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Dave, can you share your geometry? Maybe with a different partition scheme could lead to a better discretization. Regards
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Be aware that in your last model there is no simmetry bc defined. Also the artificial Y displacement restriction (and the frictionless support) could be hidding the issue that the lifting points are not equidistant to the center of gravity of the tu…
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Hi, can you share the model?
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I was checking the model, and even considering the thikness of tubes and slings, still there is too much separation, I would start with solid elements, and the sling coincident with te tube in the contact areas.
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I would model with solid elements and using a quarter of geometry as it's simmetric. Probably would fix the ends of the sling and use gravity as load.
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These are the results with a simple plastic material. I will do a new run but lifting the stripper more than now to see if then the blank has different behavieur
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Looks like that with a smaller increment (0.001) it works. It's taking a little time (more than one hour with 18 cores) but has passed the point where it fails before
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Hi, I have remade the model, also with elastic material works but not with plastic one, even reducing the increment size. Time 0-1 Stripper preload (and keeped up to time 3) Time 1-2 Lifter preload (and keeped up to tome 3) Time 2-3 Punch displacem…
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Have tried with two models and works, but is there a way to keep the different bodies separated?
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That's great! Very often is quicker to have a conformal mesh than using TIE.
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No, I don't see any penalty on speed of selectionworking with the mesh faces directly, but in case you define some partition (as a bolting surface), you can loose it in the mesh model, making it a little complex to select it on Mecway, but again, yo…
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You can import the assembly step in Salome or Gmsh to create the mesh (on both can be a conformal mesh), and then export to Mecway. I preffer Salome as it have much better control of the mesh and group creation than Gmsh.
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That's a great news, have seen some advances on dynamics and CFD analysis on this new release. Have somebody done some work with the CFD features of CCX?
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Great, thanks!
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It's a very smart use of the library! I will implement asap, thanks you.
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Well, a bellow was the first part that came to my mind to show the self contact feature :-)
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Very interesting and usefull, thanks for sharing!
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This are the keys that make it work, still was unnable to make it work within Mecway, but works with Gmesh aplication. I has to read the Gmsh documentation to see what they are doing ------------------------------------------------ SetFactory("Ope…
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Rename this file to import.geo to use it.
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Hello Disla, that is because there are two more steps defined in the CCX custom cards.
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Hi, here is the final work, took a few iterations but now the preload, centrifugal force and pressure on blade are all applied. In case of using the middle of the rivet as the simmetry plane, there will be some nodes that will participate in contact…
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Please upload the geometry CAD files needed in order to create a partition on the rivet shaft, and improve the mesh at the hole area.
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I would apply the simmetry at the middle of the bolt (so, half bolt in each simmetry plane) in order to check easily the behavieur in this area. Have exported the results to Paraview for a clear view, and we can see that the other plates will not be…
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The 230 faces are those of the simmetry plane, for using only one cyclic simmetry condifion. Have checked and using only one pair of TIE for the cyclic simmetry leads to nodes of different components being artificially stitched, even if I had used …
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Hi, with Meshlab you can open your .obj mesh, do some treatment if it is needed, and then export as .stl to use it in Mecway. http://www.meshlab.net/ Regards
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And what abou the mid plate moving outside the simmetry plane? Should not be in the plane to attend the simmetry boundary condition?
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I'm using Mecway 12 with CCX 2.15 with Pardiso. As far as I remember Mecway came with CCX 2.14 and that could be the difference
