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Drgania typu galopowania interferencyjnego dwóch walców o przekroju kołowym o tej samej średnicy

The interference galloping of two circular cylinders with equal diameters

Medium: journal article
Language(s): Polish
Published in: Budownictwo i Architektura, , n. 1, v. 1
Page(s): 087-102
DOI: 10.35784/bud-arch.2303

The paper deals with numerical analyses of interference galloping of two elasticcaly supported circular cylinders of equal diameters. The basis of the analyses is a quasi-steady model of this phenomenon. The model assumes that both cylinders participate in the process of interference galloping and they have two degrees of freedom. The movement of the cylinders is described as a set of four nonlinear differential equations. On the basis of numerical solutions of these equations the author evaluate the correctness of this quasi-steady model. Then they estimate the dependence of a critical reduced velocity on the Scruton number, turbulence intensity and arrangements of the cylinders.


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