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On the small two-dimensional oscillations of a sea-line

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Sommario

In questo lavoro si studiano le piccole oscillazioni piane di una condotta sommersa la cui configurazione di equilibrio statico abbia curvatura diversa da zero. Sono trattati alcuni casi di interesse pratico assumendo la catenaria come curva di equilibrio. Vengono discussi i limiti di applicabilità del metodo adottato per integrare l'equazione differenziale risultante. Le frequenze naturali ottenute sono confrontate con quelle che si hanno partendo da alcune configurazioni di equilibrio a curvatura costante.

Summary

The aim of this work is to study the small in plane oscillations of a submerged pipeline with a curved equilibrium configuration. Some cases of interest in practical applications are analyzed assuming that the curve of static deflection is a catenary. The limits of the method adopted to integrate the resulting differential equation are discussed and the natural frequencies computed starting from a catenary are compared with those obtained assuming static configurations with constant radii of curvature.

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Angrilli, F., Bergamaschi, S. On the small two-dimensional oscillations of a sea-line. Meccanica 12, 144–150 (1977). https://doi.org/10.1007/BF02179928

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  • DOI: https://doi.org/10.1007/BF02179928

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