vibration analysis

Dear stress Ers,
i have done static and dynamic(harmonic) analysis for the piping system which is connected with centrifugal pump,everything is within allowable stress max stress is 51.3% of Sh, max displacement 21mm, everything passed and approved,
BUT in actual situation the piping system are in high vibration, why it is vibrating how to predict the vibration using CAESAR II, why all condition are passed still it is vibrating ,what is reliability of CAESAR II, what else i have to do remove vibration

pls advise

regards
pipe

Hi,

Please input the natural frequency and desired number of mode shapes provided by the centrifugal pump vendor and run the analysis and check for resonance phenomenon is occurring or not.


Thanks,
Rakesh

dear rakesh

natural frequency & number of mode shapes are i given in advance parameters
can you pls explain in detail about checking resonance phenomena

regards
pipeman