Through analysis of steam and water pipeline vibration cases occurred in power plants

the related frequency spectrum characteristics for vibration of steam and water pipe-lines have been summarized up

and some recommendations for vibration remedy being given.Study shows that the repeatability and stability of major vibration componts in the frequency spectrum graph are better

and the comparability of frequency spectrum graph at same measuring point is higher.The principal vibration boasts periodic vibration behavior;the frequency spectrum graph of resonance vibration is more simple

the spectrum line of principal vibration is outstanding

and that of other vibration being very week;the forced vibration often hasn't principal vibration frequency

in the event of vibration velocity surpassing the set standard

and the pipeline being drastically vibrated

the vibration velocity of several major frequencies may be not high.The remedy of vibration can obtain good result in alleviating vibration when combining with vibration mode analysis for pipelines.