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prop_design
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Comments
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@sergio your hexed meshed part is amazing. i'm very impressed as well.
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you might want to check your displacement conditions. i can think of an example where time step could affect convergence. imagine; max disp of 1mm ramped linearly to 1 sec., compared to max disp of 1mm ramped linearly to 100sec. the second case is …
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If you add SOLVER=PARDISO, it will use the pardiso solver.
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I have never tried it personally.
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the question about ccx_MLK.exe i can't answer. victor will have to address that. however the rest of the things i may be able to help with. yes the dll re-numbering is annoying. intel keeps adding numbers to the dll files for some reason. first it …
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just for the heck of it. i rotated the legs and added more pins. the pin orientation does follow the element orientation. you can enable the element axis in mecway, to see them. below shows more pins added: below shows different leg orientation:
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i think the axis of rotation depends on the element orientation. the attached model is using v as the rotation axis. the pins are aligned the way victor says they should be, in the above post. this model has pretensioned cables and the beams they co…
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yeah, i have the same problem. sometimes the heal geometry feature in netgen will fix the problems. i'm not sure what the problems are though. in cad the files are valid. however, netgen will have problems with them anyways. it's very hit and miss. …
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one note about output=2d though. the stress is not useful to gauge safety. it's far from what you get doing something more accurate. the problem with ccx is you are forced to use output=2d sometimes. due to the node expansion. it's a real headache f…
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here is a slightly different version with a table top attached. just for fun. interesting how it changes the beam deflection though. edit; updated the attachment i had to laugh at the results. it's the size of a twin bed but it's saying it can hol…
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is the attached file what you are trying to do? config 2 has the rotations at the nodes you wanted suppressed. edit; updated the attachment
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sorry disla, some of the files are way above my head. i don't know what is supposed to happen with them. i was only able to understand two of the simpler ones. i'll have to leave it to victor or someone else that fully understands what you are findi…
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@ victor; oh wow, that is weird. thanks. i'll try to remember that.
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note for victor about the forum. is there any way the forum downloads can keep the file names that the user provides. when i download the files they are coming in with very odd, long, and seemingly random names. this makes it hard to share if were t…
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this is odd disla, i get what victor got. i don't see anything but what you applied. in this latest model 250mm about x, y, and z. i'm using ccx 2.19 also. i also ran the previous model you posted and got what you applied as well 500mm about x, y, …
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One way is to add a formula to the solution branch. You can import the attached file to see how. After importing the formulas, you might have to re-solve, to have the results show up.
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I was just wondering, does automatic remeshing have anything to do with the failures you are seeing. I was under the impression that analyses like these usually used automatic remeshing. I don't think that is something you can do with CCX or Mecway.…
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I ran a quick test on the vol file, just to make sure the mesh was valid. I don't know your loads, materials, etc... However, I did notice those tabs at the top have re-entrant corners. This will cause the FEA results to be off, in those areas. You …
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Your Serb_A.stp file meshed fine in the current version of Netgen. This is from the Netgen website. It only took about 29 seconds on a modest laptop. I'm not sure which file is the one that wouldn't mesh for you though. The versions of Netgen built…
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thanks for the user experience information. i'll look for your old post too.
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Also, many years ago, I posted on this forum about csimsoft bolt. That has been moved into Coreform Cubit. It's the Sculpt application within Sandia Cubit and Coreform Cubit. I haven't personally used it but it seems similar to the above. I'm also n…
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hi 3rav, i tested the file you requested. unfortunately, the results were really bad. it's using a ton of hard drive throughout the solve. this slows it way down on my computer. also, it says pardiso is not linked. in any event, below are the resul…
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thanks for pointing that out. yeah i don't even have the original file on my computer anymore. when i made the updates, i asked victor if he could remove the old version but he didn't want to. he didn't want to cause confusion. unfortunately, that's…
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glad you figured it out. i just noticed an error in my previous post. i meant to say that with the v2.17 release mkl_sequential.1.dll was being used by pardiso, instead of the avx2 or avx512 dll files. i just updated my previous post with the correc…
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I can't say for sure, however the thread linked below talks about how to get pardiso to run with the ccx_dynamic.exe file from version 2.18. also, updating your intel mkl might help. intel does still make improvements to pardiso. some releases don't…
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you're welcome. i hope it works out for you. i was really surprised that model finally meshes. for a long time, i've had to use a special version of the model, to get it to mesh. now i can use the real model. the weirdest thing is there is nothing o…
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keeping the solvers up to date is a moving target. there are several threads on the forum talking about it. everyone's setup is different unfortunately.
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using the v2.18 ccx_dynamic.exe file from the ccx website, the pastix solver completed in 4min 35sec, using 3 cores. i have 16gb of memory. the von mises stress is shown below.
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so it gets even weirder, if i apply the suggestion from the ccx forum. they say use a truss element with just two nodes. that seems much better. however, the pardiso result seems more accurate than the pastix result. if you use beam elements, there …
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i can confirm what you are seeing in the file and what victor is saying seems to be true. if you turn off truss the results are better. however, the beam starts rotating instead of compressing. so it seems the ccx expansion is the problem here. the …
