Why each time I try to make a costraint goal all the evaluation values turn red and it´s not possible to execute or to extract them?

Unknown

Diana M._20503

Hello,

Could you please confirm if designs are not solved (runs failures) or if designs are solved but the Constraint is not met?

1) If the designs are not solved (it's FluxMotor model?), it is needed to investigate why. For this I'd suggest to start by looking at the following blog:

HyperStudy Tips and Tricks: #15 – Top 5 Guide of the HyperStudy-FluxMotor User

https://community.altair.com/community?id=community_blog&sys_id=f3e9a121dbb45910cfd5f6a4e296192f

 

2) If the designs (or some of them) are solved but the constraint is not met, I'd suggest to:

• Plot the constraint function (Torque) in Iteration Plot tab. Add the bound in order to see how far/close you are with respect to the limit (>2 in your case); Then, plot also the design variables within their bounds to see if you reach lower or upper bounds for all/some of them.

• If you are close to meet the constraint and variable bounds are not reached, you can try to continue the optimization (you use GRSM?) to see if further improvement can be achieved;
• If you are close to meet the constraint and variable bounds are reached, you can continue the optimization with modified bounds (e.g. higher max bound).
• If this constraint is hard to be met you may need to review the limit value you have set.

 

Hope it helps.

Diana

Diana M._20503

Hello,

Could you please confirm if designs are not solved (runs failures) or if designs are solved but the Constraint is not met?

1) If the designs are not solved (it's FluxMotor model?), it is needed to investigate why. For this I'd suggest to start by looking at the following blog:

HyperStudy Tips and Tricks: #15 – Top 5 Guide of the HyperStudy-FluxMotor User

https://community.altair.com/community?id=community_blog&sys_id=f3e9a121dbb45910cfd5f6a4e296192f

 

2) If the designs (or some of them) are solved but the constraint is not met, I'd suggest to:

• Plot the constraint function (Torque) in Iteration Plot tab. Add the bound in order to see how far/close you are with respect to the limit (>2 in your case); Then, plot also the design variables within their bounds to see if you reach lower or upper bounds for all/some of them.

• If you are close to meet the constraint and variable bounds are not reached, you can try to continue the optimization (you use GRSM?) to see if further improvement can be achieved;
• If you are close to meet the constraint and variable bounds are reached, you can continue the optimization with modified bounds (e.g. higher max bound).
• If this constraint is hard to be met you may need to review the limit value you have set.

 

Hope it helps.

Diana

Melih Ayyildiz_22506

Diana M._20503 said:

Hello,

Could you please confirm if designs are not solved (runs failures) or if designs are solved but the Constraint is not met?

1) If the designs are not solved (it's FluxMotor model?), it is needed to investigate why. For this I'd suggest to start by looking at the following blog:

HyperStudy Tips and Tricks: #15 – Top 5 Guide of the HyperStudy-FluxMotor User

https://community.altair.com/community?id=community_blog&sys_id=f3e9a121dbb45910cfd5f6a4e296192f

 

2) If the designs (or some of them) are solved but the constraint is not met, I'd suggest to:

• Plot the constraint function (Torque) in Iteration Plot tab. Add the bound in order to see how far/close you are with respect to the limit (>2 in your case); Then, plot also the design variables within their bounds to see if you reach lower or upper bounds for all/some of them.

• If you are close to meet the constraint and variable bounds are not reached, you can try to continue the optimization (you use GRSM?) to see if further improvement can be achieved;
• If you are close to meet the constraint and variable bounds are reached, you can continue the optimization with modified bounds (e.g. higher max bound).
• If this constraint is hard to be met you may need to review the limit value you have set.

 

Hope it helps.

Diana

Hi Diana,

I have the same issue. I haven't run the DOE yet and I have some goals and constraints added. All numbers within the Evaluation Data are marked red. I read your blog post but I don't think that one of the tips there is helping/stopping me from executing it. Do you know what the issue could be?