Finite Element Analysis (FEA) and Statistical Energy Analysis (SEA) methods have been applied recently to the study of acoustic induced vibration (AIV) in piping systems.

In this paper, the acoustic vibration in the piping systems is studied by performing FEA of a model of the structural pipe with the application of the acoustic excitation as stationary acoustic modes to the structural pipe model. This approach provides an alternative to performing FEA using a combined model for the acoustic fluid and the pipe. The analysis is used for the evaluation of the power flow from the acoustic medium to the pipe. The acoustic part of the system is modeled as a series of acoustic modes that are taken to act on the pipe FEA model. The Coupling Loss Factor (CLF), required for the formulation of the SEA model, is identified and plotted against pipe parameters.

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