[lammps-users] Errors:Bad principal moments

2009/11/17 雷海东 <[email protected]>:

Thanks,when the atom number of the rigid body is large(for example:more than
20000),the "Fix rigid "command goes wrong and I am getting an error: Bad
principal moments.However,when the atom number of the rigid body is small
enough,my input script has a normal running.My input script as follows:

i don't have the time to look into this right now,
but superficially, it looks as if fix rigid is not the
right solution to what you are doing. check the
fix rigid documentation for a examples of alternatives
and misunderstanding of what this does.

cheers,
   axel.

ps: always keep the list in cc to maximize your chances
to get a useful answer.