Coupled Vibration of Two Discs in Fluids : Experimental Research

This paper presents experimental results for the coupled vibrations of two discs. The upper disc is fixed along the outer boundary while the bottom one is fixed at the inner periphery. The two discs face each other in a fluid-filled cylindrical vessel. The simple theoretical formulae which were pres...

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Bibliographic Details
Published inTransactions of the Japan Society of Mechanical Engineers Series B Vol. 58; no. 548; pp. 1092 - 1097
Main Authors KAWAMOTO, Kazutoshi, NIIKURA, Kazuo, OHSHIMA, Katuhiro, MORIGUCHI, Kazuo, TAKAGI, Mitiyuki, SATOH, Johshirou
Format Journal Article
LanguageJapanese
Published The Japan Society of Mechanical Engineers 25.04.1992
Subjects
Fluid
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Summary:This paper presents experimental results for the coupled vibrations of two discs. The upper disc is fixed along the outer boundary while the bottom one is fixed at the inner periphery. The two discs face each other in a fluid-filled cylindrical vessel. The simple theoretical formulae which were presented in the 1st report are examined. The experimental results are in good agreement with the theoretical results, which showed that two coupled frequencies appear for each number of nodal diameters. The difference between the natural frequencies from the theoretical and experimental results is studied, and some modified formulae are presented that predict the natural frequencies of the runner of a centrifugal hydraulic machinery more accurately.
ISSN:0387-5016
1884-8346
DOI:10.1299/kikaib.58.1092