August 2001

Special Report: Fluid Flow

Acoustic fatigue in large turbocompressors and pressure reduction systems

A near-field sound pressure level screening method can predict problems

Blodgett, L. E., Jungbauer, D. E., Southwest Research Institute

Predicting the potential for acoustic fatigue in piping systems associated with pressure reducing systems in the design stage has received much attention. However, an easy-to-use screening criterion for assessing potential for acoustic fatigue for operating installations has not been readily available. Based on theory and empirical measurements, a near-field sound pressure level screening method has been developed for evaluating piping systems. This article presents a case history that incorporates use of the near-field noise screening criterion for risk assessment in an existing installation. This screening criterion will enable users to assess the risk and severity of acoustic fati

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