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Optistruct FRF analysis encouter an error ==>OptiStruct ERROR: 192

Altair Forum User

my modal elements number : about 300000

analysis frequency: 0~500Hz

used method: direct FRF

ERROR # 192 FROM SUBROUTINE ddlslv

Possible programming Error :

Unexpected error condition from subroutine 'xzslfa'

ioerr(1) = -513

ioerr(2) = 1

***** FATAL SOLVER ERROR *****

This error occurs in subroutine slvdrv

***** FATAL ERROR ENCOUNTERED *****

Can any one tell me what's wrong with this error, or explain what the error mean?

Thanks for help !!

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Altair Forum User

Can you provide some details of the model setup? What is the analysis setup, how is excitation applied etc.

Altair Forum User

My modal is a car, but the tire and suspension are simplify by spring element, and use an unit load as the excitation on one of the tire element (spring), then analysis by direct FRF which constrain under the car body, my intention is to found out the transmit relation of every part of the car(such as chair & suspension's transmit relation ).

Altair Forum User

Please contact your local support office with your problem.

Can you provide the model file?

What version of OptiStruct are you running?

Thanks,

Greg.

Altair Forum User

Hello,Greg

Because the model is business secret, so i can't support the model, sorry !

And my version of OptiStruct is 8.0.

Thanks for your reply!

Jeff