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Sergio
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In ANSYS workbench, you model your geometry as a surface? and then in Mechanical you make a shell mesh? If that the case you could model your parts in any standard CAD program as Solidworks, Solidedge, FreeCAD as conected surfaces and then import in…
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I have recovered an old model of a simple compressor that works similar, I will create another version as soon as possible with even more simplified components, including the con rod bolts, piston rings and cylinder liners, and adding a load on a to…
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Would be possible to make it dynamic and also include inertial forces due to rotation (at least at constant speed)? The ideal model would include also connecting rods and piston, and an external force in the piston head. There is a recent video on …
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Another test that you may do is extend the surfaces in SW (away from the target), and then trim the excedent with the other, and finish with a sew command in SW before importing in Mecway.
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Are you sure that the surfaces are perfectly touching in CAD? Were all generated by the same kind of operation? Some times the extend surface operation gives some degenerated edge that doesn´t allow a connected mesh. If I remember well there is a to…
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I did something very basic python script to make a kind of bill of material/parts and include material properties, element type, node and element numbers last years, but using the Mecway API functions. It gives a raw text file that can be easily cop…
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There is also an issue related to the number of the nodes, if I rememeber well the size in memory of the problem depends not only in the quantity but also in max number of nodes, so if you have deleted or imported parts with no correlative nodes num…
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Interesting problem, normally I do that on the CAD by spliting surfacces, but in an orphan mesh... My first try was create a hole with the Menu/Mesh Tool/Hole (using the washer diameter), and then select all the faces around the hole with the Edge …
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@Victor , Alibre assembly support will be a great advance. Will use native or step files created by the application?
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Normally I create first named selections with names following a simple naming convention. This selections can be based on geometry or sometimes directly on meshes. Then the bc are applied to these named selections, and the name of the selection help…
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If the parts are in contact and perfectly modeled in CAD, you can export the assembly to Salome and mesh there with coincident nodes and avoid the bondad contact issue. Then export the mesh as unv with groups of elements for every component and impo…
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@Andrea, looks like the beta coefficient helps to achive the stabilization faster than the alpha coefficient. But @disla static method also is very interesting. In my understanding the dynamic option simulates the act of releasing the load and lett…
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@disla, what kind of step have you made then? Lineal Static?
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Guess that you will need to add some damping or friction to the system, otherwise will be balancing constantly. Attached two runs, the second is wit Raleigh damping, alpha =0 and beta = 1s As I understand with damping the system will finish in the…
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If the problem is during postprocessing, you can go to Menu/Options/ and decrease the Resolution to make it more agile.
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Pay attention to the lower plate, if is single plate of 50.4mm you should replace the actual three surfaces by only one.
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As you say, you could mesh all with shell elements and use to create a new mesh, or in the CAD create directly the wireframe geometry if that the case, and export as DXF. I have created some models like that in FreeCAD and it works ok for creating b…
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@disla, I have downloaded and tested Welsim Material Editor, and looks great... until you start to try to use it in an eficiently/every day use. There is no thing as a material database, all are saved in individual files. There is no way to quickly …
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An hyperfoam material can be defined in Mecway using CCX custom model definition like this *SOLID SECTION, MATERIAL=SPONGE, ELSET=SPONGE ********************************************** *MATERIAL,NAME=SPONGE *HYPERFOAM,N=2 0.164861E6,8.88413,2.302E-5…
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About the material parameters, we determined in the past for rubber using only compression tests on a simple molded test sample (in fact the same as in the animation) and using a comercial tool. We had tested all our hardness range and determinate M…
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For microcelullar rubber I have used in the past (automotive door sealing) Abaqus hyperfoam material. CalculiX also includes this material, take a look at a simple comparation between hyperelastic (solid rubber) and hyperfoam (microcelullar rubber).…
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For extruding such elements you must select the "border" and not the faces.
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Sometimes you need to include the test devices also in your simulations to take in count the shape and contacts that cannot be represented by simple boundary conditions. Can you extend a little more on the failure modes that you are not seeing in th…
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Due to the large impossed displacement, this problem must be solved with geometrical no lineal activated. Your material is a sponge, so a propper hyperfoam material must be defined using CCX custom model definition like this *SOLID SECTION, MATERI…
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Have you used the special material *HYPERFOAM in your simulation? Also, maybe using hexa elements with reduced integration can help, 30% of deformation is a lot for the mesh.
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In CAD, I export every component of the assembly as an individual file. Some components that are made in the same material can be exported in a single file, very often for bolts I do that, one component with all the bolts, is easier to manage that w…
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If Is an step file, it must have only one component per file. Mecway doesn't recognize assembly steps
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In Mecway parts are called components, and if I remember well they are imported as element named selections (sets or groups in Prempomax). Look in the model tree under Named Selections, choose the one that you need (all the elements of that named se…
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You need to ask to compute the stress components before requesting the stress linearization, they are not included by default. Go to Menu/Solution/Stress and Strain/Stress, and then try again with the linearization. You must first select two nodes, …
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Mecway solver has become better for shells and beams than CCX imho, maybe that extra no lineal material option could atract more users. Whit this last upgrades such as the posibility to glue different meshes with TIE or couplings makes more suitab…
