Hi Rein, does the strange behavior change at all when you increase/decrease mass of the walls? Have you tried off the trunk to see if this problem still exists? lastly, can you attach the code you used to move the rods too? thanks, John
On Thu, Jun 16, 2011 at 1:08 AM, Rein Appeldoorn <rein...@gmail.com> wrote: > I'm using Gazebo version 0.9. This is because I had a problem with > actuating > the hinges via the generic-actarray in Gazebo version 0.10. Therefore, I'm > using version 0.9 now. > > I'm not using a wall mesh; the wall consist of multiple box geometries. > > The movement of the table, what you saw in the movie, happens when rotating > the rod. This is weird because the static part of the table (walls) have > the > following parameters: > > <mu1>0.3</mu1> > <mu2>0.3</mu2> > <mass>1e5</mass> > > I've added my ODEPhysics.cc and my .world-files: > http://80.56.19.206/files/ODEPhysics.cc > http://80.56.19.206/files/simulation_010.world (Gazebo 0.10) > http://80.56.19.206/files/simulation_090.world (Gazebo 0.09) > > Thanks for responding! > > Rein > > On Thu, Jun 16, 2011 at 9:45 AM, John Hsu <john...@willowgarage.com> > wrote: > > > ah, sorry, I just went back to see the video again, and apparently I saw > > the > > wrong video earlier! > > > > Ok, the bouncing table problem is most likely a problem with max contacts > > specified. I've seen this when max contacts is set too low for the mesh > > involved. What version of gazebo are you running? can you attach or > point > > me to ODEPhysics.cc? > > > > One way to fix this (not the best way) is, try putting a small box block > > under each corner of your "wall" mesh. > > > > John > > > > On Wed, Jun 15, 2011 at 2:50 AM, Rein Appeldoorn <rein...@gmail.com> > > wrote: > > > > > I checked my gazebo settings in /server/physics/ode/ODEPhysics.cc and > > they > > > were as follows: > > > > > > contact.surface.mode = dContactSlip1 | dContactSlip2 | > > > dContactSoftERP | dContactSoftCFM | > > > dContactBounce | dContactMu2 | > > > dContactApprox1; > > > > > > So this can't be the problem in my opinion. The parameters for the > > > geometries of the table are as follows: > > > > > > <mu1>0.3</mu1> > > > <mu2>0.3</mu2> > > > <mass>1e5</mass> > > > > > > Any idea what we are doing wrong? > > > > > > Thanks, > > > > > > Rein > > > > > > > > > On Fri, Jun 10, 2011 at 1:08 PM, Rein Appeldoorn <rein...@gmail.com> > > > wrote: > > > > > > > John, > > > > > > > > Thanks for your reply. > > > > > > > > What do you mean with the friction coefficients of the "wheels"? > > > > And how do I check my Gazebo-settings if they are right? > > > > > > > > Regards, > > > > > > > > Rein > > > > > > > > > > > > On Thu, Jun 9, 2011 at 8:01 PM, John Hsu <john...@willowgarage.com> > > > wrote: > > > > > > > >> Hi Rein, > > > >> Not sure if this will help, but have you tried reducing the friction > > > >> coefficients of the wheels <mu1> and <mu2> to something less than 1? > > > >> also, make sure that in the version of gazebo you are running, > > > >> contact.surface mode has "dContactApprox1" in it. > > > >> > > > >> contact.surface.mode = dContactSoftERP | dContactSoftCFM | > > > >> dContactApprox1 | dContactMu2; > > > >> > > > >> John > > > >> > > > >> On Thu, Jun 9, 2011 at 5:51 AM, Rein Appeldoorn <rein...@gmail.com> > > > >> wrote: > > > >> > > > >> > Code: http://www.student.tue.nl/W/r.p.w.appeldoorn/simulation.txt > > > >> > <http://www.student.tue.nl/W/r.p.w.appeldoorn/simulation.world> > > > >> > > > > >> > On Thu, Jun 9, 2011 at 2:43 PM, Rein Appeldoorn < > rein...@gmail.com> > > > >> wrote: > > > >> > > > > >> > > Hi all, > > > >> > > > > > >> > > We are working on a simulation model of an autonomous football > > > table. > > > >> We > > > >> > > already build our model but we're struggling with the realism. > We > > > >> solved > > > >> > a > > > >> > > lot of problems but to this one, we can't find an answer to. > Here > > is > > > a > > > >> > movie > > > >> > > of the weird/unrealistic behavior: > > > >> > > > > > >> > > Movie: > > > >> > > http://www.student.tue.nl/W/r.p.w.appeldoorn/gazebo_tablesoccer.avi > > > >> > > > > > >> > > Has someone perhaps experienced similar problems or perhaps does > > > >> someone > > > >> > > want to take a look at our code because we're probably making > > > trivial > > > >> > > mistakes. > > > >> > > > > > >> > > Code: > > http://www.student.tue.nl/W/r.p.w.appeldoorn/simulation.world > > > >> > > > > > >> > > Thanks in advance, > > > >> > > > > > >> > > Rein > > > >> > > > > > >> > > > > >> > > > > >> > > > > > > ------------------------------------------------------------------------------ > > > >> > EditLive Enterprise is the world's most technically advanced > content > > > >> > authoring tool. Experience the power of Track Changes, Inline > Image > > > >> > Editing and ensure content is compliant with Accessibility > Checking. > > > >> > http://p.sf.net/sfu/ephox-dev2dev > > > >> > _______________________________________________ > > > >> > Playerstage-gazebo mailing list > > > >> > Playerstage-gazebo@lists.sourceforge.net > > > >> > https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo > > > >> > > > > >> > > > >> > > > >> > > > >> -- > > > >> John Hsu, Ph.D. > > > >> Senior Research Engineer > > > >> Willow Garage Inc. > > > >> +1-650-475-2809 > > > >> > > > >> > > > > > > ------------------------------------------------------------------------------ > > > >> EditLive Enterprise is the world's most technically advanced content > > > >> authoring tool. Experience the power of Track Changes, Inline Image > > > >> Editing and ensure content is compliant with Accessibility Checking. > > > >> http://p.sf.net/sfu/ephox-dev2dev > > > >> _______________________________________________ > > > >> Playerstage-gazebo mailing list > > > >> Playerstage-gazebo@lists.sourceforge.net > > > >> https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo > > > >> > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------------ > > > EditLive Enterprise is the world's most technically advanced content > > > authoring tool. Experience the power of Track Changes, Inline Image > > > Editing and ensure content is compliant with Accessibility Checking. > > > http://p.sf.net/sfu/ephox-dev2dev > > > _______________________________________________ > > > Playerstage-gazebo mailing list > > > Playerstage-gazebo@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo > > > > > > > > > > > -- > > John Hsu, Ph.D. > > Senior Research Engineer > > Willow Garage Inc. > > +1-650-475-2809 > > > > > ------------------------------------------------------------------------------ > > EditLive Enterprise is the world's most technically advanced content > > authoring tool. Experience the power of Track Changes, Inline Image > > Editing and ensure content is compliant with Accessibility Checking. > > http://p.sf.net/sfu/ephox-dev2dev > > _______________________________________________ > > Playerstage-gazebo mailing list > > Playerstage-gazebo@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo > > > > ------------------------------------------------------------------------------ > EditLive Enterprise is the world's most technically advanced content > authoring tool. Experience the power of Track Changes, Inline Image > Editing and ensure content is compliant with Accessibility Checking. > http://p.sf.net/sfu/ephox-dev2dev > _______________________________________________ > Playerstage-gazebo mailing list > Playerstage-gazebo@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo > -- John Hsu, Ph.D. Senior Research Engineer Willow Garage Inc. +1-650-475-2809 ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev _______________________________________________ Playerstage-gazebo mailing list Playerstage-gazebo@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo
