[Yade-users] [Question #239900]: equivalent damping calculation in ViscElPhys

2013-11-27 Thread Raphaël Maurin
New question #239900 on Yade: https://answers.launchpad.net/yade/+question/239900 Hi all, I have a question about the formulation of the equivalent damping in ViscElphys. For now, it is made such as : cn = ((1/cn1) + (1/cn2))^(-1) which is equivalent to cn = cn1cn2/(cn1+cn2) However, in the ca

[Yade-users] [Question #239901]: Sphere + facet collision problem

2013-11-27 Thread Martin Nie
New question #239901 on Yade: https://answers.launchpad.net/yade/+question/239901 Hi, if I run the simulation, the spheres seem to cross the cauldron or they're jumping very fast away. I if I change the material to ViscElMat and change the appropriate Law, the spheres don't cross the cauldron's

Re: [Yade-users] [Question #239901]: Sphere + facet collision problem

2013-11-27 Thread Martin Nie
Question #239901 on Yade changed: https://answers.launchpad.net/yade/+question/239901 Description changed to: Hi, if I run the simulation, the spheres seem to cross the cauldron and disappear or they're jumping very fast away. I if I change the material to ViscElMat and change the appropriate L

Re: [Yade-users] [Question #239901]: Sphere + facet collision problem

2013-11-27 Thread Martin Nie
Question #239901 on Yade changed: https://answers.launchpad.net/yade/+question/239901 Description changed to: Hi, if I run the simulation, the spheres seem to cross the cauldron or they're jumping very fast away. I if I change the material to ViscElMat and change the appropriate Law, the sphere

Re: [Yade-users] [Question #239901]: Sphere + facet collision problem

2013-11-27 Thread Jan Stránský
Question #239901 on Yade changed: https://answers.launchpad.net/yade/+question/239901 Status: Open => Answered Jan Stránský proposed the following answer: Hi Martin, try to decrease the time step and let us know if it helped or not. If not, we will find better solution :-) cheers Jan 2013/1

Re: [Yade-users] [Question #239901]: Sphere + facet collision problem

2013-11-27 Thread Martin Nie
Question #239901 on Yade changed: https://answers.launchpad.net/yade/+question/239901 Martin Nie posted a new comment: hi Jan, many thanks for your quick response. I tried to decrease the time step, but it doesn't work. (The Timestep is decreased to 1*e-11) -- You received this question notific

Re: [Yade-users] [Question #239824]: u

2013-11-27 Thread Bruno Chareyre
Question #239824 on Yade changed: https://answers.launchpad.net/yade/+question/239824 Status: Open => Answered Bruno Chareyre proposed the following answer: Do you know how the explicit integration in DEM works? Because it seems you are looking for something that does not exist: we have no f

Re: [Yade-users] [Question #239900]: equivalent damping calculation in ViscElPhys

2013-11-27 Thread Bruno Chareyre
Question #239900 on Yade changed: https://answers.launchpad.net/yade/+question/239900 Status: Open => Answered Bruno Chareyre proposed the following answer: >if one damping parameter of the contact is zero, then as the two dashpot are considered in series, the equivalent damping should be zer

[Yade-users] [Question #239918]: how to add a new field in controller GUI in order to pass a parameter to a specific law

2013-11-27 Thread mansour talhaoui
New question #239918 on Yade: https://answers.launchpad.net/yade/+question/239918 Hi There, I just started using Yade. Presently I use those commands to launch the controller view (GUI) 1- I run the command yade then Ipress F12 I would like to add a new field (Real value) in Generate Panel,

[Yade-users] [Question #239919]: Is getStress documentation ok ?

2013-11-27 Thread jduriez
New question #239919 on Yade: https://answers.launchpad.net/yade/+question/239919 Hi, >From the code of getStress() function >(https://github.com/yade/trunk/blob/master/pkg/dem/Shop_02.cpp#L382 I guess) >it seems to me that sigma_ij ~ f_i * l_j While the doc says sigma_ij ~ l_i * f_j Not su

Re: [Yade-users] [Question #239918]: how to add a new field in controller GUI in order to pass a parameter to a specific law

2013-11-27 Thread Bruno Chareyre
Question #239918 on Yade changed: https://answers.launchpad.net/yade/+question/239918 Status: Open => Answered Bruno Chareyre proposed the following answer: Hi Mansour, What you ask is not difficult to do, however I'm not sure it is a good thing for you to follow this line. Nowadays the prepr

Re: [Yade-users] [Question #239919]: Is getStress documentation ok ?

2013-11-27 Thread Bruno Chareyre
Question #239919 on Yade changed: https://answers.launchpad.net/yade/+question/239919 Status: Open => Answered Bruno Chareyre proposed the following answer: The stress tensor is supposed to be symmetric, so it doesn't really matter (in static cases at least, in dynamic cases both are wrong an

Re: [Yade-users] [Question #239918]: how to add a new field in controller GUI in order to pass a parameter to a specific law

2013-11-27 Thread mansour talhaoui
Question #239918 on Yade changed: https://answers.launchpad.net/yade/+question/239918 Status: Answered => Open mansour talhaoui is still having a problem: Hi Bruno, Thank you very much. much appreciated. I have checked your example but really it is not clear enough because I don't know how

Re: [Yade-users] [Question #239918]: how to add a new field in controller GUI in order to pass a parameter to a specific law

2013-11-27 Thread Anton Gladky
Question #239918 on Yade changed: https://answers.launchpad.net/yade/+question/239918 Status: Open => Answered Anton Gladky proposed the following answer: Hi, 2013/11/27 mansour talhaoui : > I already tried to adapt the scripts to meet my requirements but it does > not work. honestly it is s

[Yade-users] [Question #239945]: displacement

2013-11-27 Thread pingyang.1...@163.com
New question #239945 on Yade: https://answers.launchpad.net/yade/+question/239945 Hi I would like to use the manifold cover concept of the numerical manifold method in YADE, So I want to know the particle displacement function source code. It is that displacement function is the funct

Re: [Yade-users] [Question #239945]: displacement

2013-11-27 Thread Anton Gladky
Question #239945 on Yade changed: https://answers.launchpad.net/yade/+question/239945 Status: Open => Answered Anton Gladky proposed the following answer: Hi, I am not sure, that my answer will be useful. Please, have a look at newtonintegrator [1]. Maybe it will give you some ideas. [1] ht

Re: [Yade-users] [Question #239945]: displacement

2013-11-27 Thread pingyang.1...@163.com
Question #239945 on Yade changed: https://answers.launchpad.net/yade/+question/239945 Status: Answered => Open pingyang.1...@163.com is still having a problem: thank you At 2013-11-28 14:46:16,"Anton Gladky" wrote: >Question #239945 on Yade changed: >https://answers.launchpad.net/yade/

Re: [Yade-users] [Question #239918]: how to add a new field in controller GUI in order to pass a parameter to a specific law

2013-11-27 Thread Christian Jakob
Question #239918 on Yade changed: https://answers.launchpad.net/yade/+question/239918 Christian Jakob posted a new comment: > honestly it is so difficult for me to use python. It is not difficult! Change the script, like bruno suggested and run it in your console, like: yade scriptname.py --