This paper addresses several key issues relevant to piping vibration: (1) vibration properties and their identification; (2) the dynamic susceptibility of a piping system; (3) standard velocity criteria for vibration damage. Practical approaches for identifying vibration properties and practical measures for preventing vibration damages are overviewed. An approach is presented for conducting vibration design reducing measures prior to installation of a piping system, and for planning post-installation vibration recording activities.

This approach is based on “theoretical predictions” of “critical” sections of a piping system, namely the sections most sensitive to vibration. The critical sections can be ranked from most vulnerable to least vulnerable. Combined with knowledge of typical vibration sources, this is a cost effective way for preventing vibration damages and for forming a base for controlling actual vibrations in operation of plant, especially for closed premises. Examples are given to exemplify vibration risk.

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