Re: [Yade-users] [Question #702665]: How to calculate the height of particle accumulation?
Question #702665 on Yade changed: https://answers.launchpad.net/yade/+question/702665 Status: Answered => Solved 孙灿 confirmed that the question is solved: Thanks Karol Brzezinski, that solved my question. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #702743]: Sensitivity testing: Results seem random
New question #702743 on Yade: https://answers.launchpad.net/yade/+question/702743 Hello, My Model: An object rotating in a pit of spheres. Output: Torque on the object about the y-axis (vertical axis) I can "calibrate" a DEM model to get results that fall in line with laboratory results (I used an MTS machine to rotate the object and get torque values). However, to calibrate my model (i.e., run many simulations while adjusting input parameters until my model results fall inline with laboratory results). My results are all over the place. One small change in an input parameter (e.g., E, density, etc), can create large changes in the output torque load path. And even when I "hit the jackpot", and get a load path close to laboratory results, when I try to do sensitivity testing (i.e., make small changes to one input parameter to see if my model is consistent). My results, again, go all over the place. I don't see a place to post them, but I do have plots showing load paths relative to small changes to an input parameter I can email over. Is this normal for DEM? It seems wrong and highly unscientific to have a model's output load path change so chaotically to small changes to an input parameter. If a MWE is required, please let me know and I'll gladly create one. As always, thanks for the help in advances, Justin -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #702735]: Possible reasons why not introduce gravity in triaxial compression tests in DEM
Question #702735 on Yade changed: https://answers.launchpad.net/yade/+question/702735 Status: Open => Answered Janek Kozicki proposed the following answer: I have no idea what robanmiller wanted to say. I suspect it's spam. The reason to don't introduce gravity in triaxial compression is that its effect is negligible. You can check this yourself. In yade examples directory you will find a triaxial test. Run this simulation with and without gravity and you will see that the result is the same. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #702735]: Possible reasons why not introduce gravity in triaxial compression tests in DEM
Question #702735 on Yade changed: https://answers.launchpad.net/yade/+question/702735 Leonard posted a new comment: Hi, Thanks for your reply. I am sorry that I didn't fully get the link between what you mentioned and DEM gravity. Could you please explain more details? Thanks Leonard -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #702735]: Possible reasons why not introduce gravity in triaxial compression tests in DEM
Question #702735 on Yade changed: https://answers.launchpad.net/yade/+question/702735 robanmiller posted a new comment: The basic state lines (CSL) of triaxial pressure tests for both free and medium thick frameworks show that the basic void proportion is autonomous of the underlying thickness however increments with expansion in bond strength. Expanding the bond strength builds the expansion, which prompts a higher basic state void proportionhttps://pickleballcloud.com";>. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #702735]: Possible reasons why not introduce gravity in triaxial compression tests in DEM
New question #702735 on Yade: https://answers.launchpad.net/yade/+question/702735 Hi, Reading from literatures that most of the DEM studies on element tests (e.g., triaixal compression tests) don't introduce gravity. Do you know what are the possible reasons for this? Thanks Leonard -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #702665]: How to calculate the height of particle accumulation?
Question #702665 on Yade changed: https://answers.launchpad.net/yade/+question/702665 Karol Brzezinski posted a new comment: If you use (xmin,ymin,zmin),(xmax,ymax,zmax) = aabbExtrema() zmax is the highest point. If you use (xdim,ydim,zdim)= aabbDim() zdim is packing height (the highest point minus the lowest) Karol -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
