Reply to "Sub synchronous vibration and coupling failure"

John from PA posted:

Do you have sufficient information to rule out a possible torsional issue?

Thankx John for your comment. I'm not sure if I do. Do you mean there's some resonance due to extrication at the torsional natural frequency. How would I go about detecting/ ruling out a torsional issue. I am relatively new to vibration analysis and haven't come across this issue.  

 

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