ERROR 160

kkandra
kkandra Altair Community Member
edited October 2020 in Community Q&A

Hi friends,

Please help me out!!!!!

*** ERROR # 160 ***

Gram-Schmidt reorthogonalization did not converge. This is caused by

ill-conditioning of the shifted matrix in Lanczos run.

(e.g. zero lower bound specified for a model with rigid body modes.)

Solver error no. = 728

subcase id = 1

This error was detected in subroutine splncz.

This error occurs in module 'slvdrv'.

How to solve this error?...

Thanks..

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2017

    Hello,

    You should do Eigenmodes analysis first to see if any rigid modes are there. It's a bad contact or Assembly problem. Then fix it and it should run perfectly.

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