Penalty Method

From OpenSeesWiki
Revision as of 17:08, 15 October 2010 by Vesna (talk | contribs)
Jump to navigation Jump to search




This command is used to construct a Penalty constraint handler, which enforces the constraints using the penalty method. The following is the command to construct a plain constraint handler:


constraints Penalty $alphaS $alphaM


$alphaS penalty <math>\alpha_S</math> factor on single point constraints
$alphaM penalty <math>\alpha_M</math> factor on multi-point constraints

NOTES:

  • The degree to which the constraints are enforced is dependent on the penalty values chosen. Problems can arise if these values are too small (constraint not enforced strongly enough) or too large (problems associated with conditioning of the system of equations).



THEORY:



Code Developed by: fmk