Flutter of a sandwich cylindrical shell supported with annular ribs and loaded with axial forces

The supersonic flutter of a sandwich cylindrical shell supported from within with annular ribs and loaded with axial forces on the end faces is investigated. The shell motion is described by the equations of the theory of sandwich orthotropic shells. The solution of the equations is sought as a trig...

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Bibliographic Details
Published inDoklady. a journal of the Russian Academy of Sciences. Physics Vol. 60; no. 8; pp. 360 - 363
Main Authors Bakulin, V. N., Volkov, E. N., Nedbaj, A. Ya
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.08.2015
Subjects
Classical Mechanics
Mathematical and Computational Physics
Mechanics
Physics
Physics and Astronomy
Theoretical
DOKLADY Physic
Critical Mach Number
Shell Motion
Mach Number
Critical Velocity
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Summary:The supersonic flutter of a sandwich cylindrical shell supported from within with annular ribs and loaded with axial forces on the end faces is investigated. The shell motion is described by the equations of the theory of sandwich orthotropic shells. The solution of the equations is sought as a trigonometric series with respect to the axial coordinate. With the help of the Bubnov—Galerkin method, this problem is reduced to the set of algebraic equations for the analysis of the stability of which one uses the Routh—Hurwits criterion. By a numerical example, the effect of the number and the heights of the ribs on the critical velocity of the flow around the shell is shown.
ISSN:1028-3358
1562-6903
DOI:10.1134/S1028335815080029