Optistruct Modal FRF analysis encouter an error ==>OptiStruct ERROR: 156

Altair Forum User

hi,

I am doing the modal frequancy responce analysis in optistructure and i am facing problem which is ,

ERROR # 156 FROM SUBROUTINE splncz

No mode exists in the interval specified.

Solver error no. = 0

subcase id = 1

minimum frequency = 2.000000E+01

maximum frequency = 2.500000E+02

Check the model and rerun the problem.

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

This error occurs in subroutine slvdrv

Is there any one who can help me to solve this problem i will be very thank full to you

Thanks

Regards

Bali

Altair Forum User

Hi,

I had the same error.

And that was due to a local co-ordinate system referenced to another local co-ordinate system.

I removed 1 of them, and the problem was solved

Regards