Simple Topo but no convergence - whats wrong?

Altair Forum User
Altair Forum User
Altair Employee
edited November 2020 in Community Q&A

Hi,

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

 

-objective function: minimize mass

-constraints:
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,


wan

<?xml version="1.0" encoding="UTF-8"?>output.png

<?xml version="1.0" encoding="UTF-8"?>result.PNG

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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited September 2016

    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.

    <?xml version="1.0" encoding="UTF-8"?>DESMAX.JPG