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Random Vibration

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How to resolve this error.. I am using HyperMesh/Optistruct?

 

Messages for the job:

 
 *** ERROR # 2813 ***
 TABRND1 referenced by RANDPS data returned a negative value for each
 frequency. This is probably due to extrapolation of the TABRND1 data.
 No results can be calculated.
 
 *** PROGRAM STOPPED: FATAL ERROR(s) ENCOUNTERED.

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Hi,

 

Can you please check the data provided in TABRND1 card?

 

If possible post the image of the table here. 

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