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I'm not sure why this happened but adding a dummy element with zero density to the node with the moment makes it solve. I also turned on automatic time stepping which helps it get further into the solution but it only rotates about 45 degrees.
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OK German. I'll make those changes unless I run into big obstacles. Thanks again for your very thorough and competent work on the manuals.
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I'll look again later but you might need to use a force couple on an additional element instead. Force on the wheel works.
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I agree that showing other types of selection in the list is inconvenient but it's the same behavior as all the loads and constraints that only support one or two types of selection, so that's a fix for another day. Using component names is a bit t…
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v7 had CCX 2.11 too. I haven't tried to compile 2.12 or 2.13 yet.
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Hi Sergio, thanks for the detailed comments. 1) The "displacement" tree node shows arrows but the "magnitude" one under it shows the usual contour plot. This is something I'm worried about because it's a bit harder to reach for the common case. Do …
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All those settings look pretty good. Two suggestions: 1) Use a prescribed displacement instead of a force. It looks like the strip has reached yield across the whole cross-section so maybe it's collapsing and can no longer support any more force fr…
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Update: beta 2 mecway.com/download/mecway80beta2.msi Bugfixes Geometry didn't display or mesh. Samples and Tutorials folders weren't shown in File->Open Incorrect localized number format when saving files. Improved error message for out of memo…
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Thanks for reporting that bug, marco. I'll release a fix in a couple of days.
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Version 7 doesn't do that, sorry. You'd have to solve the configurations one at a time and copy each csv file away before solving the next one.
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I have feeling this might be easier with a hand calculation but I don't know how. 1. The easiest way is thin beam elements so that their bending stiffness is very small. You might need to artificially increase the stiffness to keep the diameter sma…
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This poor load distribution will be fixed in version 8.
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Yes, you can do it the same way on a displacement constraint. This will need the CCX solver.
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You can define the load as a function of time using a formula or table. Probably a linear increase then linear decrease would do, in which case, choose the Table option in the load window and enter 3 (time, force) pairs to identify the initial, maxi…
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The easiest way is probably making a table in a spreadsheet and copying and pasting it into the Z component box on a force load. You could also set up an approximate step function using exponentials or something but that might turn into quite a mes…
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The values at the nodes should always be non-negative. But the contour plot for values between nodes is calculated using the elements' shape functions which, if they're quadratic, allow negative values. It's partly a graphics problem (quadratic inte…
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It sounds like snap-through buckling which you usually can't model completely with Mecway or CalculiX. You would be able to deform it up to the point where it snaps through, but probably not the post-buckling behavior after that. If you havn't alre…
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It looks like it's working OK. A possible reason is that the node values are misleading or meaningless for a complex space frame like this because they're an average of the values of all elements sharing each node. Use the element values, not the n…
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Yes, you should be able to have no bending like that. Check the little cylinder symbols on the ends of the beam. There should be 3 at the ball-joint end and 1 at the clevis end oriented the way the clevis pin would be. If that doesn't help, can yo…
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Hello Gary Mecay doesn't have materials with damping included as a complex elastic modulus. What it can do is: * Discrete damper element (dashpot) * Rayleigh damping with different coefficients per material/layer. * Possibly viscoplastic mat…
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The internal solver is limited to 16 or 32 GB because it uses the LP64 programming model with 32 bit array indices. I don't know about CalculiX but it could be the same.
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No, sorry. If it's really hard, you could edit the .liml file directly.
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You could use constraint equations. I don't quite know the answer but here's an approach similar to what bonded contact uses but without coupling rotation: Start with the nonlinear constraint that the initial distance between the nodes is equal to …
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In some cases, you can select the longer edge and use Mesh tools -> Refine x2 to split it into two. For edges where the ratio of number of elements isn't a power of 2, you could apply that to a subset of the elements and move the nodes around to…
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> I was able to open the ".frd" directly late yesterday, but the model looks like an origami project gone wrong. From that description, it sounds like the 3-digit exponent problem which happens with some builds of CCX (possibly including the on…
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Not guaranteed. Mecway only supports some common DXF shapes as listed in the manual. Though a structure like this is probably going to become LINEs which are supported.
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Several things are unclear: Is it the internal solver (not CCX) that can't solve, or is it CCX run through Mecway? I'm concerned if there are models that can run in CCX from the command line but not through Mecway. How are you opening the .frd fil…
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DXF would usually work for this but apparently SW didn't export 3D DXF in 2011 but maybe does now? https://forum.solidworks.com/thread/50774 Here are some suggestions for exporting a list of point coordinates. You would be able to import that as t…
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My basic understanding of MFRONT is that it generates a dynamic library for a user defined material, which CCX links to. Is that right? I imagine you could already use it with Mecway by entering the material card in CCX -> Custom model definition…
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You're right that you don't need to do the thermal analysis first - that's for obtaining the temperature field in cases where you didn't know that in advance. While not a tutorial, the VibratingMembrane.liml sample file described in the manual uses…
