Reduced-order modelling based on non-linear modes

CEN Mazzilli, PB Gonçalves, GR Franzini - International Journal of …, 2022 - Elsevier
This paper addresses a detailed literature review on non-linear modes of vibration and its
role in obtaining more efficient reduced-order models, as compared to those obtained by …

An experimental investigation on concomitant vortex-induced vibration and axial top-motion excitation with a long flexible cylinder in vertical configuration

GR Franzini, CP Pesce, RT Gonçalves, ALC Fujarra… - Ocean …, 2018 - Elsevier
An experimental investigation of concomitant Vortex-Induced Vibration (VIV) and top-motion
excitation with a long and vertical flexible cylinder is presented. Underwater optical …

Non-linear reduced-order model for parametric excitation analysis of an immersed vertical slender rod

GR Franzini, CEN Mazzilli - International Journal of Non-Linear Mechanics, 2016 - Elsevier
A unidirectional three-mode reduced-order model (ROM) for the lateral motion of a slender
and immersed rod subjected to harmonic and axial top motion was derived from the …

Multi-modes approach to modelling of vortex-induced vibration

E Pavlovskaia, M Keber, A Postnikov… - International Journal of …, 2016 - Elsevier
In this work the fluid–structure interactions are considered by investigating a straight but
slender pipe interacting with uniform water flow. Two configurations are studied, namely …

Experimental analysis of a vertical and flexible cylinder in water: response to top motion excitation and parametric resonance

GR Franzini, CP Pesce, R Salles… - … of vibration and …, 2015 - asmedigitalcollection.asme.org
Experiments with a vertical, flexible, and submerged cylinder were carried out to investigate
fundamental aspects of risers dynamics subjected to harmonic excitation at the top. The …

Reduced-order models for the analysis of a vertical rod under parametric excitation

GJ Vernizzi, GR Franzini, S Lenci - International Journal of Mechanical …, 2019 - Elsevier
This paper focuses on the analysis of the parametric excitation of a vertical and immersed
flexible rod, showing the influence of the choice of the shape function used in the Galerkin's …

A detailed study of the parametric excitation of a vertical heavy rod using the method of multiple scales

GJ Vernizzi, S Lenci, G Rosa Franzini - Meccanica, 2020 - Springer
An analytical solution for the problem of an immersed flexible and vertical heavy rod
subjected to a vertical top motion is developed using the multiple scales method directly …

[PDF][PDF] Experimental investigations on Vortex-Induced Vibrations with a long flexible cylinder. Part I: modal-amplitude analysis with a vertical configuration

GR Franzini, CP Pesce, RT Gonçalves… - Proceedings of the …, 2016 - sites.poli.usp.br
An experimental investigation of Vortex-Induced Vibration (VIV) on a long and vertical
flexible cylinder is presented and some results are analyzed. Optical instrumentation allows …

Heave-imposed motion in vertical risers: a reduced-order modelling based on Bessel-like modes

CEN Mazzilli, F Rizza, T Dias - Procedia IUTAM, 2016 - Elsevier
The heave-imposed excitation in vertical risers is a problem of scientific and technological
interest, since it can lead to parametric instabilities on one hand, and fatigue failure with …

Natural frequencies and internal resonance of beams with arbitrarily distributed axial loads

S Lenci, F Clementi - Journal of Applied and Computational …, 2021 - jacm.scu.ac.ir
An exact analytical solution for transversal free vibrations of a beam subjected to an arbitrary
distributed axial load and a tip tension is obtained by means of a power series …