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Victor
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Hi @Hengre. I don't think there are any environment variables for the version of CCX that comes with Mecway. But if you downloaded a multithreaded one like with Pardiso or PastiX, there'll be something to set the number of threads. I'm not sure what…
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@Sergio, probably not because it's too specific.
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Yes, Mecway always uses m,kg,s for both solvers. So this can restrict the range of values that work well. I know there are issues with nanometer scale meshes.
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@dculp, that's certainly a problem of it not respecting maximum element size properly. I never knew it behaved like that. I see Gmsh seems to also but without the size grading, it's hard to be sure. I may just rename it to work around the problem. …
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They're not available with CCX, sorry.
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@mathiasf, an option to extend the range to be symmetric? I should be able to. It would be independent of the color scale choice though.
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Reaction forces are only present at the constraints and their colors are only shown on the corresponding beam end faces. You can't really refine truss elements because that creates pin-joints at all the new nodes. A way to get a finer mesh is chang…
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I'm not sure, sorry. I just treat the max. and min. element sizes as approximate. 70% error in the worst case seems normal.
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@afro_samurai no donate button but I appreciate the sentiment.
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Not sure if that behavior would generalize well to other uses. But I see what you mean, that does make it a lot less convenient for projecting onto an infinite plane.
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Oh, this is a bug. Thanks for finding it, I'll fix it in the next version. The only workaround I can find is to restart Mecway. You can predict when it's about to happen when the target selection shows "0 nodes, faces or elements" instead of "0 fac…
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@cwharpe, did you know that you can project a set of nodes onto a plane parallel to the 3 global planes by using Mesh tools -> Node coordinates? If you leave some components blank, they're not altered. As for 3-point plane, I think it's almost a…
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Not within Mecway. Though you could solve a static model as quasi-static with ramped loads and then the colors will correspond to the instantaneous values during the animation.
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@cwharpe, no, sorry. I looked into that and couldn't work out anything. You can make use of the order of selection to identify individual nodes/faces/elements, or put them in named selections.
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Yep. v16 has a new feature for this. Specify the Save after solve file name as .liml instead of Test1.liml
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i8 doesn't seem to be included in 2.20 anymore. I've updated the top post to link to 2.19.
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I think you can still use centrifugal force with nonlinear dynamic response but I haven't tested it so it's disabled. Add the centrifugal force by changing analysis type to something else that does support it, like static, then change back again aft…
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Sorry about that. There are probably other people who've used it that way unaware too. I appreciate you bring this up.
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That's very clear. Thanks for bringing this up. It took me a while to understand and it's not something I realized was a problem before. Now I see the input box is extremely ambiguous or wrong. I'll see about adding a description of what those X, Y,…
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I'm not sure then. Perhaps you're using multithreading and some environment variables for that are different in the cmd shell? I'm using the copy of ccx.exe that comes with Mecway which doesn't support multithreading. For me, H10a.liml with the com…
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Oh dear, that failure with the geometry preview is terrible! I'm not sure what's wrong and can't find a workaround yet but I'll fix it for the next release. Sorry for such a frustrating experience. I'm not seeing any speed difference between comman…
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No option for that sorry. You should be able to work around it by setting the max/min manually to exactly 0 and 1.
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Put "start" in front of the command to have the batch file continue immediately. start D:\Engineering\Mecway_15\Mecway.exe %1
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Fantastic writeup and pictures! If it's not too late, I encourage you to run it through the latest version (16) because the shell elements are upgraded to a much more accurate formulation, especially on curved structures like this.
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To avoid decomposing the vector, you could use frictionless supports like this. It's not exactly the same since it also adds some rotational constraints though.
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"¿why it works when it is imposed only in one cartesian coordinate without showing let’s call it free rigid body motion" It's some undefined behavior of the matrix solver when its underconstrained. There are no guarantees about what happens to the …
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Yes, suppressed should be "acts like it's been deleted" but here's a place where it does have some side effect. It's not ideal and perhaps I'll change it but it doesn't affect the solution so I think it's harmless. Only a problem for hacking the CCX…
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You can do that here too, but it's easier because there's no transformation. See attachment. It's not over-constrained because each of the 3 displacement constraints only constrains the displacement in one direction. The 3 together fully constrain t…
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Oh, I see what you mean now about "if I eliminate the Orientation card in the three my custom model fails". That's because the custom CCX cards refer to an ELSET (element_orientation_elements) that the orientation card creates. I guess it's surpris…
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You can do this without any custom CCX cards. I've attached an example to displace the end of the beam 1mm in the longitudinal direction only. Nonetheless, the following change to your file works for me. It displaces the node in the (-1,1,0) direct…
