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Re: [Bug 708314] [NEW] clumps explosion

 

> Clumps exhibit  a strange behaviour, test is script/test/clump-hopper-viscoelastic.py
> But, with examples/buldozer/buldozerVKT.py all is ok. 
> (Both used same contact model). 
> So, something is wrong with inertia tensor or aspherical integrator, me seems.
I've no time to really investigate. Just a few questions to perhaps help
localize the problem:
1. What is the result with smaller timestep?
2. Does it solve the problem to use spherical integration?
3. Is there the same instability with different contact laws?

Bruno

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https://bugs.launchpad.net/bugs/708314

Title:
  clumps explosion

Status in Yet Another Dynamic Engine:
  Confirmed

Bug description:
  Clumps exhibit  a strange behaviour, test is script/test/clump-hopper-viscoelastic.py
  But, with examples/buldozer/buldozerVKT.py all is ok. 
  (Both used same contact model). 
  So, something is wrong with inertia tensor or aspherical integrator, me seems.



References