Stuck? 
support@mecway.com
support@mecway.com
Mecway
FEA
Victor
About
- Username
- Victor
- Joined
- Visits
- 4,724
- Last Active
- Roles
- Administrator
Comments
-
That's definitely an important point about hex8, VMH. But, Eric, I'm curious how you got the results to converge. When I converted the solids to hex20 or refined them, the displacement increased, getting even further from the shell result. I also s…
-
That's a pretty clear validation of both results, not to mention looks like quite a powerful telescope! The Cruxis page does mention not taking into account weight distribution of the tubes, so perhaps they lumped the tube weight at the ends.
-
Thanks Sergio - it's always helpful to see the model. I suspect in this case that there may be other constraints on the same nodes. A limitation of bonded contact in Mecway is that you can't put any other constraints on the slave nodes, and if ther…
-
Hello eric_c If you refine a mesh made of truss elements, the new elements will also be truss elements, so they'll have too much freedom to rotate and move. It sounds like you should make all of them beam elements and apply "flexible joint" at the …
-
Yes, only 2D surfaces for now, not 1D edges.
-
Hello Mario Indeed, meshing is a bit of a handicap with Mecway and I regret that it's causing you frustration. It can only do a single solid part in each STEP file. So no assemblies unless each part has its own file and no shells. Version 3 goes s…
-
Yea I hope that too. Thanks for posting it on here. I answer a lot of similar questions by email. It would be nice if more of that was public and searchable. Feel free to share your results too if they're not confidential.
-
Hello alex You can use the "displacement" constraint as a pinned or knife support. Here's an example using both shells and beams. It would be similar for solids.
-
Mecway doesn't have a special contact stress feature so the regular stresses might not be a good approximation without a very fine mesh. It also doesn't have contact which can be initially open then close as the part deforms. I would suggest using…
-
Hello dmh A couple of options: 1) Add the circle as a split face using CAD software. Then the automesher will place nodes along its edge. 2) Move nearby nodes into the shape of a circle. Select the nodes around the circle and use Mesh tools->F…
-
There's no builtin way sorry. Another person managed to generate an arbitrary pressure distribution on a wing by writing a program to generate a .liml file containing individual pressure loads imported from other software. You would need to convert …
-
Protontim, I don't plan to add a dynamic nonlinear solver, but instead further integrate with CalculiX to take advantage of that. It should become smoother in the next version. I realize the amplitude tables can be saved quite inefficiently (duplic…
-
Hello VMH It can't yet import results from CalculiX but I expect to have that in v4. There is an option in the labs menu for solving directly from Mecway though. This just streamlines the process if you don't need to make manual edits to the .inp f…
-
I think I understand now. It looks like the problem is just the default orientation of the axes relative to the screen. Is that right? In this case, rotating the geometry round the axes would certainly create further problems like you mentioned with…
-
VMH and Sergio, I'm not sure what you mean about the Z axis pointing up. It sounds like defining a new set of axes so that the new Z is the same direction as the current Y. That will introduce too much confusion. Do you find that after importing fr…
-
About rigid links, there are now a couple of new ways to do this. It depends what kind of behavior you want. To keep the selected faces rigid, you could use bonded contact to a single high-stiffness element that has the force on it. If you need to a…
-
This is still a limitation - having constraints adjacent to the bonded contact. A couple of ways around it: 1) Prefer to put the master face near the constraint rather than the slave. It's more permissive but probably won't help in this case. 2) Ext…
-
Glad you solved it OK.
-
Oh yes, it's new to v3.
-
Hello protontim. No, the dynamic response analysis type in Mecway is currently linear only. With v3, you could export to .inp and solve with CalculiX though. In that case you'd probably need to make some edits to the .inp file manually but the mesh…
-
Yes, that's right. Both businesses have an agreement to sell the product based on the same original code. A few of the additional features that Mecway has are: - Both 32 and 64 bit. Much larger models can be solved with a 64 bit computer. - Fully u…
-
Oh, yes. MPEG export is only in version 2 and later. An alternative might be to use a screen capture program like Screencast-o-matic.
-
Hello Louis Yes, there's a separate menu next to the play/pause button for the transient animations, as shown in this picture.
-
A hinge is a little tricky to converge because it's underconstrained at the first iteration. A couple of ways are: 1) Use time steps (specify time step info in the global properties) and apply the force to stiffen the structure at a time before any…
-
Some people may have a valid concern which is perhaps not easy to ask - If I die, will customers be left empty handed? This is true about the technical support. However as prop_design says, the software will continue working as long as you have a co…
-
Good question. This is always an issue for large displacements. In Mecway, all loads remain defined relative to what they were originally defined on. This makes some of them follower loads and some not. For example: Force on a node is specified in …
-
Yes, that's right.
-
Hello havsula It will have some sort of new contact in version 3. I'm not sure about large strain, but eventually I'd like to do that.
-
Actually, node coordinates are treated a bit differently from other values. They're displayed with whatever units the software decides you want at the time. For example if you use pounds and inches for material properties and loads, the tape measure…
