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*** SYSTEM FATAL MESSAGE 5407 (LNCCKS)

Experimenter
Experimenter

Hi Gents,

 

I am running vibro acoustic solution (SOL111) and encountered this fatal message.

it seems that Nastran succesfully solved the eigen values for structure but failed for the fluid model.For the fluid EIGRL i did not specify any MAXSET or F1. any tips to get rid of this error?.

 

Thank in advance,

Rao.

 

*** SYSTEM FATAL MESSAGE 5407 (LNCCKS)
     INERTIA (STURM SEQUENCE) COUNT DISAGREES WITH THE NUMBER OF MODES ACTUALLY COMPUTED IN A (PARTIAL) INTERVAL
    FOUND     96 MODES BETWEEN  1.4799302E+03 HZ AND  1.5000000E+03 HZ BUT THERE SHOULD BE ONLY     95 MODES.
    THIS RUN IS TERMINATED. PARAM,BAILOUT,-1 MAY BE USED TO CONTINUE THE RUN.

    USER ACTION:  THE FOLLOWING CHANGES TO THE EIGRL CARD MAY HELP TO SOLVE THIS PROBLEM
                  1.  INCREASE MAXSET.
                  2.  IF F1 IS GIVEN AS ZERO, LEAVE IT BLANK.
                  3.  IF F1 AND F2 ARE BOTH GIVEN, LEAVE F2 BLANK AND SPECIFY A VALUE FOR ND.