Abstract
A piping system can be vibration excited by a number of sources that are a consequence of the flow of the internal fluid, the pumps, and other ancillary equipment of the system. The vibrational power induced in the pipe structure will be partly radiated as noise and partly transmitted through the isolators attaching the quiet piping system to the supporting structure. The transmission of this vibrational power to the supporting structure is investigated in this article using power flow and structural mobility methods. The approach that is developed here is not limited to isolated straight pipe sections but can be applied to a number of subsections joined together by components that can be represented by structural mobility terms. The results obtained can be useful towards the design of quiet piping systems. The influence of the different structural parameters of the pipe, isolators, and support structure can be clearly demonstrated.
Published Version
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