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Radopt Design Responses

Altair Forum User

I want to optimize energy absorption of a component in a Radioss model using radopt to include a topology optimization,

I have two ideas

1) Set the force vs displacement (area under curve) in a as my responses to monitor.

2) Set energy of the component as design response? (not sure if possible)

Also, optistruct design responses can be used in this radopt optimizations? (static force could be used for my point 1 )

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Altair Forum User

Hi @Gus.Gzz The first option is feasible. I would suggest you check the supported design responses on RADIOSS help for RADIOSS optimization.

Altair Forum User

Thanks Prakash,

The design responses I found on RADIOSS help:

DRESP1

RTYPE

Response type for an optimization run.

(Integer > 0)

= 1: Mass

= 2: Fraction of mass

= 3: Volume

= 4: Fraction of design volume

= 5: Displacement

= 6: Stress

= 7: Strain

= 8: Internal strain energy

= 9: Velocity

DRESP2 for equations

Function to be applied to the arguments.

(Integer > 0 or blank)

= 1: SUM

= 2: AVG

= 3: SSQ

= 4: RSS

= 5: MAX

= 6: MIN

= 7: SUMABS

= 8: AVGABS

= 9: MAXABS

= 10: MINABS

How can I set the feasible point 1) Set the force vs displacement (area under curve) without force response?

I've heard that you can set the dresp for the force, maybe I'm missing something,

Regards,

GGB

Hi,

Sorry for the typo error. I was supposed to say first is not feasible.

You can use Strain energy instead.