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doc:user:remeshing:remeshing [2016/06/13 17:29] – [Dynamic balancing] jorisdoc:user:remeshing:remeshing [2016/06/13 17:33] – [Options] joris
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 For the advanced user, a few options can be played with by changing the three of arguments.  For the advanced user, a few options can be played with by changing the three of arguments. 
  
-First of all, it is possible to deactivate the ''stepPredictor()''. If you do not know what it is, do not touch it. If you do, well sometimes, when transfer errors are significant, the balancing can go better if executed without this predictor, so without extrapolating the next step based on velocities and accelerations. This is fine only in quasi-static, because in dynamic computations velocities and accelerations also intervene in the computation of forces. To do so, simply set the second argument to ''False''+First of all, it is possible to deactivate the ''stepPredictor()''. If you do not know what it is, do not touch it. If you do, well sometimes, when transfer errors are significant, the balancing can go better if executed without this predictor, so without extrapolating the next step based on velocities and accelerations. This is fine only in quasi-static, because in dynamic computations velocities and accelerations also intervene in the computation of forces. To do so, simply set the second argument to ''False''. If have not investigated this greatly, but I believe that this could be a sign that the mesh of the computation was not fine enough, so activating this option could hide the real problem. I believe it should be reserved for battery tests, because we want to have tests with rather coarse meshes there
  
 Second, the number of iterations for each step of the balancing can be changed. By default, seven iterations are tried before increasing the fraction of the unbalanced forces and starting again. Second, the number of iterations for each step of the balancing can be changed. By default, seven iterations are tried before increasing the fraction of the unbalanced forces and starting again.
  
-Finally, the tolerance can also be changed. The parameter $\alpha$, used to ponder the unbalanced forces, starts at 1 and is progressively divided by 2 when a step fails. Once $\alpha$ becomes smaller than the tolerance, the algo stops itself, returns an error, and the temporal interation does not restart. The default value of 0.001 can be changed if needed. +Finally, the tolerance can also be changed. The parameter $\alpha$, used to ponder the unbalanced forces, starts at 1 and is progressively divided by 2 when a step fails. Once $\alpha$ becomes smaller than the tolerance, the algo stops itself, returns an error, and the temporal integrationdoes not restart. The default value of 0.001 can be changed if needed. 
doc/user/remeshing/remeshing.txt · Last modified: 2024/03/01 16:17 by boman

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