Stuck? 
support@mecway.com
support@mecway.com
Mecway
FEA
prop_design
About
- Username
- prop_design
- Joined
- Visits
- 14,263
- Last Active
- Roles
- Member
Comments
-
the speed up may very. some of my codes were 2-3x faster. some were about the same. since the ccx pardiso version is using the intel mkl already, the solve might not be much faster. however, if there are other parts that were compiled with gfortran …
-
this is one of many; https://software.intel.com/content/www/us/en/develop/tools/oneapi/hpc-toolkit.html their site is hard to navigate so i figured people could google it. they also change the links a lot, so not sure how long this link will be val…
-
ok, sorry it took so long. here is the link to a netgen tips screencast: https://1drv.ms/v/s!AubMNYNIQyqKgkWp6K5R3F2_HREN?e=1dZJgK
-
yes the documentation is non-existent for netgen. you have to trial and error your way through it. i've never been able to figure gmsh out and it crashes a lot on me. so i gave up on it. i was able to figure netgen out for the most part. i use to ha…
-
hi john, i don't want to side track this thread, so I messaged you a response.
-
I write code in Fortran 77. I hate coding and learning Fortran was an awful experience. But it works good. Nice to see a fellow old timer.
-
interesting. i'm glad you figured it out. in your picture, at the root of the cutouts you can see where mecway has problems with edge recognition. that is an area where i have seen the netgen program be much better. when i mesh in mecway it usually …
-
here is the model rebuilt in rhino. it works fine now. i assumed it was supposed to be one part.
-
Ok, so I tried meshing it in the Netgen program. It acts like it works. But when I import the mesh into Mecway, red xs show up where there are problems. This looks like an assembly, because there are breaks in the surfaces that wouldn't be there if …
-
hi dculp, The messages are meant for the Netgen program. The topology explorer is in Netgen. So the messages don't really apply to Mecway. The base Netgen option is a modified version of an older Netgen program. The Netgen 6 option was something Vi…
-
hi disla, i did a lot of comparisons between solid, shell, and laminate. i didn't see much difference. however, you get more resolution through the thickness. unfortunately, there are no mesh metrics, so i'm not sure how to relate mesh quality to r…
-
hi mmartin, thanks. i have more example files. i tried to build a library of materials from info i found online. the main thing of importance for me is fatigue strength. the formulas i added make it easy for me to see the steady stress in percent o…
-
Below is another example of the graphical glitch. I attached a test model using the laminate feature. You can see how the thin elements don't seem to affect the solution quality. Unfortunately, there is no element shape metric in Mecway. Especially …
-
I looked into what I was recalling in a previous post. It does appear to just be a graphical display issue. Pre-solve the mesh looks disconnected. Post solve the mesh is connected. I posted pics of this. Also, I posted a pic of where the shell offse…
-
hi disla, on the material property input for laminates you enter the thickness. so i'm not sure you have to do what you were thinking. as far as the aspect ratios, it doesn't seem to matter. i don't understand why that is. however, based on the res…
-
hi mishal, yes as disla said, i would try the laminate feature and the ccx solver. i have used that and it works good. you can also use a composite shell model, if you have bulk material properties for the laminate. using the laminate feature is g…
-
i don't know if this helps anyone or not. the reason i originally created this topic was to get an idea of how much memory i should get. i originally had a laptop with 4gb of memory. i now have one with 8gb. from working with mecway and ccx i can te…
-
hi jase, yes i was use to having quality checks in ansys. to get around it, with mecway, you can use netgen directly. you can pull up the quality plot before you create the mesh. it will show you how the mesh is optimized as it goes. so it's really…
-
Hi Victor, Didn't the old versions of Mecway use to automatically create the results when you selected an analysis. I thought this was something that changed a few versions back. I really liked when it automatically created the results. I was reall…
-
1e-14 should be a safe choice
-
yeah, this is annoying. i would be interested in an option to flip it.
-
I have been using Rhino 5 to manually create midsurface and solid models. I import step files into Netgen and create midsurface and solid meshes using tet elements with midside nodes. I have never been able to figure out gmsh. The built in Mecway me…
-
i should add a couple things that i have found looking at various vendors. they don't list the cas timing on memory. ddr4-3200 is good for amd cpus. however, some memory has lower cas timings which is what you want. so something like dell and hp usu…
-
i'm an amd fan. however, your best to get a nvidia graphics card. they are supported more. for a cpu the amd zen3 would be the best. however, i'm not sure if you can actually get one yet. it might take a few more months. you'd have to check on that.…
-
i would get the most memory you can and the fastest memory as well. i would also get the fastest m2 ssd you can. 8 cores is good. more than that doesn't seem to be of much benefit. but if you get 16 cores then you could still do other things while i…
-
one thought i have is if you're contact is setup correctly. also make sure the model is fixed appropriately.
-
one thing i wonder is if they are using the parallel versions of METIS (ParMETIS) and SCOTCH (PT-SCOTCH). hopefully they are, but I don't know that's the case.
-
i believe he got it here; https://calculix.discourse.group/t/calculix-and-pastix-solver-windows-version/130 however, the windows version isn't working completely. mainly it's missing parsec, which would make it work even better. i'd hold off for a…
-
it doesn't look like anyone has been able to compile it on windows using parsec. parsec seems to take a serial code and automatically turn it into a parallel code. but not entirely sure.
-
there is this one; http://mecway.com/forum/discussion/750/propeller-hub/p1 there may be others on here.
