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Sergio
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I have a DELL workstation at work with Xeon and Nvidia Quadro, I don't see the benefits today (in fact since years) compared with standard good hardware, but, it's a enterprise decition. In the past there was huge difference between performance of w…
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Have tried with an old Lenovo T420 laptop: SOLVER: CCX Pardiso 2.16 using 4 cores CPU: Intel Core i5 2520M @ 2.50GHz RAM: 8.00GB Doble-Canal DDR3 @ 664MHz HD: Hitachi HTS723225A7A364 Run Time: 9 min 45 seconds (!!!) Looks like the 1:43 mark is ve…
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Solver: CCX Pardiso 2.16 using 18 cores CPU: Intel(R) Xeon(R) CPU E5—2697 v4 © 2.306Hz 2.30 GHz Memory: 32.0GB Unknown @ 1197MHz Run time: 1 min 46 seconds I was doing some CAD stuff whit Solidedge and Teamcenter while solving.
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Yes, as I said before in the post, was meshed with Salome. Normally I mesh one face of the perfil (or half/quarter in case of having simmetry), then import in a empty Mecway file, do the mirrowing if is needed and apply material and save in the Mecw…
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No, I can't. Sorry
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In the past had used a pendulum test as a way to determine the rebound properties of rubber, others ask you for a drop test as you perform, but inside a plastic tube to avoid wind effect. But for more accurate damping measurements we use dynamic tes…
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Have checked and not, it doesn't go up higher than initial height. Plotting the position of one node is not accurate as the ball start to rotate after a few rebounds. Atacched is the model that I have run in CCX (using Scite to launch the solver) an…
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I did some comparations between Abaqus and CCX using exactly the same cards, and the results were different after the impact. CCX bounds more than Abaqus, didn't find a way to change this behavieur even using different damping options on CCX.
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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.
