Error 789

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

Hi,

I am working on a sizing optimization of cross-sections from a tube steel frame. From the first start of my optimization I gained the following .prop file:

As you can see the tubes are really small and got a unreal wall thickness.

 

So I tried to set some Discrete Design Values to reach better results from the solver.

But now the optimization stops at Iterationstep 5 with the following Error message:

*** ERROR # 789 ***
 Invalid design properties w.r.t. the design variables were found.
    number of invalid property items = 4

 

I have no Idea what this means and hope you can help me.

Unfortunately i am not allowed to give you the .hm file.

 

 

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