Error 2148 - Laminate Optimization

Altair Employee

Feb 21, 2016

Updated Nov 13, 2020 by Altair Forum User

Hello,

I am a member of a Formula Student Team from Metz, France and I'm new to Optistruct and to the optimization of laminates. I'm working to optimize our carbon steering wheel. The analysis was done but i have an error when i'm trying to optimize.

I have two optimization response ( mass and static displacement), my optimization constraint is a displacement of 1mm of two nodes and my objective is the min mass. I share my model.

My error is :

*** ERROR # 2148 ***

Invalid design problem.

All the sensitivities of response 1 (objective) are zero.

Any ideas about a possible reason for this error?

Many Thanks,

Olivier Hagmann

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