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<a name = "hj-top"> </a><table class = "table1" id = "table11"><tr><td><table class = "DocHeader"><tr><td class = "DocHeader1" colspan = "2"><h1>About Checking the Quality of the Optimization Result</h1></td></tr><tr><td class = "DocHeader4" colspan = "2"/></tr><tr><td class = "DocHeader3" colspan = "2"><table class = "DocThemeIntro" id = "table12"><tr><td class = "Intro1Only"><p class = "shortdesc">To get an impression of the quality of the optimization, it is
necessary to check the values of the constraints and the objective
at the end of the optimization.
    
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    <p>
       If <span class = "ph">SIMULIA Tosca Structure</span> stops, the
problem has converged or the maximum number of iterations (by
default 50) is reached. If no convergence is achieved, it can be
possible that the constraints are too strict meaning that they
cannot be reached because of the mechanical boundary conditions of
the model. The model plot does not give any information about the
quality of the result.

    </p><p>A converged model shows the following characteristics:
<ul class = "ul"><li class = "li">The change of the objective function is very small so that the plot
of the value of the objective shows a nearly horizontal line.</li><li class = "li">All the constraints are fulfilled or inactive (fulfilled but not
near to the constraints value).</li><li class = "li">The changes of the constraint are very small so that the plot of
the constraint value shows a nearly horizontal line.
</li></ul></p>
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