Error 153

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hi, i dont understand this problem. How can i solve it ?

 

 

WARNING: The amount of memory allocated for the run is 1593 MB, which is larger than the specified (or the default) RAM= 1000 MB. This run will use minimum core processing in the solver. 

 

************************************************************************ A fatal error has occurred during computations:  ***

ERROR #  153 ***  Exactly zero pivoting encountered during Numerical Factorization;  the model may have rigid body mode.   

Solver error no. =       -503       
spc set id =          2             
index =          1 

Possible reasons are:  1) insufficiently constrained model, 
2) having rigid body mechanisms within the model,  ...

*********************************************************************** Note that estimated disk requirement exceeded available space. 

See WARNING 1970 in the output file. ************************************************************************

 ==== End of solver screen output ====  

==== Job completed ==== 

 

<?xml version="1.0" encoding="UTF-8"?>post-21342-0-09904300-1384902861_thumb.p

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2013

    Hi,

     

    it looks like your model has not enough constraints or other mistakes, which results in a singular stiffness matrix.

    But all possibilities are written in your attached screenshot. Check your model...

     

    Regards,

    Mario

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