I know it is not strictly related to Mecway operativity, but you have solutions to forget or at least minimize the effects of temperature in the bolting process by means of Flange Bolt Disc Springs (check Chesterton 500 for reference). If your main …
Wow, what a nice challenge.
¿Is the sight glass water tight?
¿I mean, will you pressurize one side of the viewport or is the gasket just to avoid glass to be directly in contact with the braze?
If that’s the case. ¿Have you consider to use the gask…
For some reason I’m not able to obtain any result when force is applied to faces.
Directly asking to solve from your *.liml file do not provide any kind of solution.
¿It is the same for someone else?
You are welcome.
Lifting devices are those kind of things in which safety of people are closely involved.
If a chair or skateboard is broken people will probably laugh. 3 Tn machine falling is another thing.
Do not hesitate to let us know your res…
Hi, UGMENTALCASE.
Regarding the design of lifting devices there are some important considerations you should keep in mind.
-Dynamic forces can double or triple the real weight you are lifting so use a minimum-minimum safety factor of 2 times your…
1-Generate the mesh with custom parameters, gmsh or netgen.
2-Mesh tools/ Automesh 3D.
3-Generate the mesh with custom parameters, gmsh or netgen again.
Two meshes are overlaped. The one coming from automesh is not reset.
Seems there is an issue with the scale factor of the mesh generated by GMSH.
I have tested custom commands with v3.0.7 (latest automatic) and it works apart from this.
Mesh.Format = 1; set manually in custom parameters
I suppose it is some kind of …
I agree with you that Mesh.Format = 1 should remain.
As Andrea anticipated Gmsh is preparing a new version (v4) that has been announced as a big improvement.(GMSH Hex generator library will be included)
Hope Mecway can take advantage of this new fea…
MECWAY 9 New feature: “Button to import Gmsh commands from a file”.
¿Is it possible to remove any additional lines to the custom settings coming from the default Mecway configuration?
Some of them override custom parameters. I have attached a pdf …
Nice pictures Steve.
¿Are you using bolts or rodbar?
I suppose you are neglecting the threads in both the bolt and mount adapter ¿isn't it?.
¿Is it a common practice when modelling studs or bolts?
It looks to me like it is a point of important st…
Thanks Andrea, Victor,
I'm using method 1) Response spectrum (acceleration Vs period). Codes provide analytical formulas to compute equivalent static horizontal force. No dynamic analysis is done.
I'm now prety much convinced that running 3D dinami…
Thanks Victor.
I can't find gravity loads. Do you mean to impose “forces”.
By other hand, Seismic actions are mainly horizontal effects and gravity is a vertical component. I suspect it is a complicated problem to solve with FEM.
In my case I shoul…
DaveStupple , you are Right.
Loads and Constrains table is reading temperature values in K when should be Cº.
It is clearly seen for time step t0 of solution
Load your file, change to ccx solver and go back to internal. Suddenly I get an error on the menu for the Rayleight BC (Red). When asking what's wrong I get the attached picture.BC must be applied to whole model and it is not.
Once applied to the w…
Just comment that old multithreading limitation of stiffness matrix assembly in ccx (CCX_NPROC_STIFFNESS=1) now works with all my 8 threads for me.
If anyone still have the system variable set to =1, I suggest to try all available threads.
Load was wrong in my model. Thanks Andrea.
Mecway divide the applied force load by the number of selected nodes. I made the same operation before imposing BC so my TOTAL load was less than required.
First Principal Stress 202 Ksi
Von Misses 187Ksi
…
You are right Andrea twilliams55 comment is working in extension. Just comment I do not get contact between spirals in compression.
Run again with new conditions ,ccx2.13MT, NL second order tet elements and obtained:
-Von Misses 7.86 Ksi
-Tensile …
What processor do you have in your computer?
You need to add the system variables:
NUMBER_OF_PROCESSORS="Max number of cores in your computer" (Should alrready be defined. I have 8)
OMP_NUM_THREADS = "Max number of cores you want ccx to use" (I hav…
Hello,
I'm getting different values. Two orders of magnitude difference but in line with PEEK compressive strength of PEEK. I have applied the 5lb distributed in some of the upper nodes 5lb/24 each one of the 24 nodes. I have left the spring free to…
Your model looks right to me.
I think you are missreading the units.
After Imported I use the Tape measure tool to measure and found that it the imported model was in meters and the part which should be .297" long was 7.5 inch long this is the pr…