Re: [Yade-users] [Question #648734]: DOFs of facetSphere
Question #648734 on Yade changed: https://answers.launchpad.net/yade/+question/648734 Status: Answered => Solved Huihuang Xia confirmed that the question is solved: Thanks Jan Stránský, 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
Re: [Yade-users] [Question #648734]: DOFs of facetSphere
Question #648734 on Yade changed: https://answers.launchpad.net/yade/+question/648734 Status: Open => Answered Jan Stránský proposed the following answer: Hello Huihuang, facets have zero mass and inertia by default. It does not matter if they are fixed, but once you let them move, you have zero division in acceleratio=force/mass have a try this script (also note appendClumped, which I suppose is what you want) # s = sphere((0,3,0),1) O.bodies.append(s) facets = geom.facetSphere((0,0,0),1,fixed=False) for f in facets: f.state.mass = 1 f.state.inertia = (1,1,1) cid,ids = O.bodies.appendClumped(facets) fs = O.bodies[cid] fs.state.mass = s.state.mass # fs.state.blockedDOFs = 'xzXYZ' fs.state.vel = (0,1,0) # O.engines = [ ForceResetter(), InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Facet_Aabb()]), InteractionLoop( [Ig2_Facet_Sphere_ScGeom()], [Ip2_FrictMat_FrictMat_FrictPhys()], [Law2_ScGeom_FrictPhys_CundallStrack()], ), NewtonIntegrator() ] O.dt = 1e-5 # cheers Jan -- 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 #648734]: DOFs of facetSphere
New question #648734 on Yade: https://answers.launchpad.net/yade/+question/648734 Hi, I intend to move a facetSphere and get its velocity when it interacts with other elements in my simulation. But to my disappointment, its velocity keeps constant. I have tried to read its source code, and got that facetSphere have a default -- fixed=True. Consequently, I modify this 'fixed=True' to 'fixed=False', but the facetSphere disappears. Besides, I have also tried another method. As facetSphere is fixed, its blockedDOFs = 'xyzXYZ' . Thus, I try to modify this one to "blockedDOFs = 'xzXZ'" (because I intend to get the velocity of facetSphere in y axis). But the facetSphere also disappears in my simulation. Can you give me a hint or solution? Thanks in advance, Huihuang -- 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
