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Coupled horizontal and torsional vibrations of a flexible barge (CROSBI ID 140267)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Senjanović, Ivo ; Ćatipović, Ivan ; Tomašević, Stipe Coupled horizontal and torsional vibrations of a flexible barge // Engineering structures, 30 (2008), 1; 93-109. doi: 10.1016/j.engstruct.2007.03.008

Podaci o odgovornosti

Senjanović, Ivo ; Ćatipović, Ivan ; Tomašević, Stipe

engleski

Coupled horizontal and torsional vibrations of a flexible barge

Differential equations of coupled flexural and torsional vibrations of a prismatic beam are derived. The equations are solved analytically by the direct integration and by the energy method. In the former case the frequency equation is reduced to a polynomial of the third order. In the latter case beam response is assumed in the form of series of natural modes of uncoupled vibrations of free beam. This variational method shows very fast convergence and high accuracy. Beside natural frequencies and natural modes, modal stiffness and modal mass are also determined. Application of the developed methods is illustrated for the case of an elastic barge. In addition, barge vibrations are analyzed also by the finite element method utilizing beam model. The intention is to check the reliability of 1D FEM model in hydroelastic analysis of large container ships, where structural model is coupled with 3D hydrodynamic model based on the radiation-diffraction theory.

pontoon barge; flexural and tosinal vibration; analytical solution; ritz method; FEM

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Podaci o izdanju

30 (1)

2008.

93-109

objavljeno

0141-0296

10.1016/j.engstruct.2007.03.008

Povezanost rada

Brodogradnja

Poveznice
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