Stuck? 
support@mecway.com
support@mecway.com
Mecway
FEA
disla
About
- Username
- disla
- Joined
- Visits
- 2,166
- Last Active
- Roles
- Member
Comments
-
Thanks Sergio, You are right. My simulation could be a bracelet on a cold day. . I hope AlexJagow didn’t take it too much verbatim. I couldn’t figure what was the real application for that. I couldn’t access to your example as I was linked to goo…
-
I have edited my previous file to add some thermal restrain as Sergio suggest and contacts between rubber and metal. Still below 1000 nodes.
-
Hi AlexJagow, ¿What do you mean by preloading the bushing?. I have done an example like loading in one direction first and then radially on a rubber bushing. ¿Is it like what you are looking for? It needs ccx to run. File edited
-
Thanks for sharing, Ken. Really nice post.
-
Hi Sergio, I recently managed to make the user element US3 to work with the help of Victor. It is a real shell element which can be useful for what you are looking for and avoid interferences when expanding. It works in thermal analysis as well as …
-
I have updated the file below 1.000 nodes just in case someone is giving a try to MECWAY in the free version. Accuracy decreases but it is just to show the idea. Run is less than 1 min. It requieres ccx ver2.18
-
Hi Victor , Ken I have read one paper about Poisson's ratio in orthotropic materials which exposes some constrains in between their values. Now I understand better why there is sometimes a warning when introducing certain combinations of Poisson v…
-
You could also introduce rotating loads applying the polar rotation matrix to the equivalent periodic load. x'=x*cos(2*pi()*t)-y*sin(2*pi()*t) y'=x*sin(2*pi()*t)+y*cos(2*pi()*t) Find attached example with 13 pinions. Time would drive the number of…
-
Hi StefanH, The theoretical framework that covers the equivalent area and contact pressure between two parabolic bodies is the Hertz contact theory ( in your case Cylindrical contact). There is an analytical solution under the assumptions of small…
-
Hi again ddraht, Really awesome work. The more I look at it the more I realize how much work you invest. Thanks for sharing. The forum is a nice source of tricks and knowledge for me. I have computed the modes using PERTURBATION and it seems to wo…
-
HEllo ddraht, I see some possible conflict points: 1-There are some Springs defined as Truss and with an empty section definition in the general material window. 2- Three of those springs have a custom V axis aligned with the elements. It should …
-
@Victor. Time Period=100s / Time Step=0.1s *WARNING reading *STATIC: the minimum increment 0.0000000000000000 is smaller then 1.e-6 times the step time; the minimum increment is changed …
-
@Manuel. Thank’s for your response. I’m not sure 100% of which properties prevail when defining a custom model. Check carefully because the “Mass” tool use the density from MECWAY not custom model. If some values in the Solution Tree are compute…
-
Very Nice example Manuel !. Thanks. ¿May I ask you something? I have notice there are some additional materials properties defined in the custom model definition. I have read in the ccx manual about them to understand their meaning and 0.0005 (…
-
I didn’t notice about this fact before but …., if you think about it for a while, in fact it seems more accurate this way. The shell is an idealization, the midplane of something with thickness. If you apply the formula to the shell (midplane) , M…
-
Hi RPP, If you apply the formula to the nodes the value will be the same as the node coordinates. As you are applying the temperature to the face of a shell, the value shown is the coordinate of the corresponding expanded surface (it will change de…
-
It worked! Thanks
-
Hi denissps, I hope someone knows a workaround and will tell you how to import lines from Salome. I don't know how so I would suggest you don't forget about the possibility of meshing manually. I have seen many comments on this forum of users strug…
-
I have never used it either. I'm not sure if it is the same but when meshing I would say I have seen some message in the console regarding OptimizeMesh at the end of the process.
-
Thanks, JohnM, I was lucky to press the button but it would be a pity if someone needs it and do not give it a try just for seeing that red alert. I'm still trying to run the Ball file with Nonlinear and Plasticity and it is not responding to me.…
-
It doesn't respond. ¿Is it just me?. I would appreciate if someone else can give it a try. I have tried v.17.1, v.18, v.19 on a WIN10 machine and the one coming with Mecway. ¿Could you post your ccx executable?
-
Which version of ccx are you using?. When I try to run it, exits the solver without any message.
-
Hi , I think this should be just a bug in the UI. There is a red colour in the "contact" text for the Dynamic Response and it disappears when I switch to Nonlinear Dynamic Response. Contact seems available for both analyses. Thanks for the example…
-
-
There is something weird on your rotation symbol ¿isn't it?. Do you have the beam correctly oriented ? Your picture shows constrain in the W direction which is the right one but it looks pointing upwards. If you are getting the right analytical val…
-
You could also use the Deleted unused nodes in Mesh tools.
-
Hi, You probably have some shell or beam element in your model. If yes, add a modify Keyword *NODE FILE --->OUTPUT 2D. Then proceed as normal. I have tried with creating a table, copy into notepad to remove the spaces, and paste it back to mecw…
-
Hi and welcome, To allow the rotation on a beam you could also proceed as this: Activate the thickness of the beam to see its shape. Select its surface on the extreme like in the picture. Apply to that surface a flexible joint on beam Boundary co…
-
@prop_design The main issue is probably me writing too much. I'm trying to understand why Rigid Body is not working as expected for me with shells and beams. Some behaviours seem random but now I understand what is going on much better and I will…
-
@Victor. The file ROT NODE VISIBLE shows clear that the Rot Node is moving when the user only wants a displacement of a Rigid Free Body. That's from my point of view something weird. ROT NODE can not move if the user do not request it or the surro…
