Dear hyperworks users,
Currently I am using optistruct for my graduation project. The subject is about the optimization of a special type bridge.
The goal is to generate/optimize the design for a minimum mass. I performed several runs with a volumefraction constraint to maximize the stiffness, which worked fine.
Now I would like to perform a weight optimization but I am not able to generate any result.
I applied a displacement constraint at several locations and defined the allowable bounds.
The objective is set to minimize the volumefrac. But I also tried: volume, mass and massfraction.
I also tried to use stress constraints allthough I know it is not recommended. But so far i only obtain errors or incorrect results.
So my question is: Can someone help my solving this problem or is there any tutorial available which describes a similar problem?
Your response is welcome.
Regards,
Michael