Altair RISE

A program to recognize and reward our most engaged community members

Nominate Yourself Now!

How to fix ERROR # 557 ?

Hello everyone,

I try to use DRESP3 response to define a constraint but i am running into the same error over and over again.

"*** ERROR # 557 ***
DRESP3 5 is not referenced above the first SUBCASE.
This type of response must be specified above the first
SUBCASE.
This error occurs in DESSUB 2."

When I put the constraint "DESSUB 2" above the SUBCASE1 i have still the same issue.

Find attached the .oml function, the .fem file. I have also a .csv file that i use to have the centroids of my elements but i cannot put it in this message.

Best regards,

Anatole Morcos

dresp5.oml

simple dresp3.fem

simple dresp3.out

Find more posts tagged with

Compose

English

HyperMesh

OptiStruct

v2021.2

Accepted answers

All comments

RobHoglund

Hi Anatole,

In the DRESP3 definition, you use a DRESP1L to reference the mass, but that is for subcase dependent responses and mass is independent. Take a look at the attached deck which refers to DRESP1 instead (it runs past that error).

Thanks,

Rob H.

simple_dresp3_altair.fem

Anatole Morcos

Hi Anatole,

In the DRESP3 definition, you use a DRESP1L to reference the mass, but that is for subcase dependent responses and mass is independent. Take a look at the attached deck which refers to DRESP1 instead (it runs past that error).

Thanks,

Rob H.

Thank you so much Rob!

I think i had another problem with the DESGLB. But it seems you also fixed it.

Have a nice day,

Anatole M.