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Simple Topo but no convergence - whats wrong?

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i have done a simple Topo. Unfortunately, the result is poor. no convergence.


-objective function: minimize mass

static displacement x < 0,5
static displacement y < 1

-mindim: 15

important to me is to achieve the displacement constraints as closely as possible.

But look at the screenshots, something is wrong. But where is the error?


Thanks for your help,






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Please increase no of iteration using Opti control. See attached screenshot & refer Optistruct user guide

Limit has reached and also constraints are violated.. Let some more iterations run on this one & check.


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