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RESEARCH PAPERS

Calculation of Acoustical Resonances in Irregular Cavities With Application to Noise-Induced Stress in Expansion Joints

[+] Author and Article Information
G. Baylac

EDF, Direction des Etudes et Recherches, 6, Quai Watier, Chatou, France

J. Planchard, J. P. Gregoire, C. Pailly

EDF, Direction des Etudes et Recherches, Avenue du Général de Gaulle, Clamart, France

J. Eng. Ind 98(1), 101-108 (Feb 01, 1976) (8 pages) doi:10.1115/1.3438800 History: Received May 27, 1975; Online July 15, 2010

Abstract

An analytical and experimental study of the acoustic behavior of seven and nine corrugation expansion joints (bellows) used in a nuclear reactor is presented. Resonant frequencies obtained from a computer program using a matrix method are given. Experimental test results on seven corrugation expansion joints are in good agreement with the computations. It is concluded that the calculation of acoustic frequencies of expansion joints with internal sleeves can be utilized to avoid the coincidence of these frequencies with those of a mechanical or flow-induced noise nature and thus reduce the loads on expansion joint corrugations.

Copyright © 1976 by ASME
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