Two-degrees-of-freedom vortex-induced vibration of cylinders covered with hard marine fouling

H Ashrafipour, M Zeinoddini, V Tamimi… - International Journal of …, 2022 - Elsevier
Marine fouling quickly covers the submerged surfaces of the man-made structures and
affects the flow regime around them. Many important studies have already been conducted …

A numerical investigation on piezoelectric energy harvesting from Vortex-Induced Vibrations with one and two degrees of freedom

GR Franzini, LO Bunzel - Journal of Fluids and Structures, 2018 - Elsevier
This paper presents numerical investigations into the dynamics of a rigid cylinder, mounted
on elastic supports fitted with piezoelectric harvesters and subjected to the Vortex-Induced …

One and two degrees-of-freedom Vortex-Induced Vibration experiments with yawed cylinders

GR Franzini, RT Gonçalves, JR Meneghini… - Journal of Fluids and …, 2013 - Elsevier
Abstract Vortex-Induced Vibration (VIV) experiments were carried out with yawed cylinders.
The purpose was to investigate the validity of the Independence Principle (IP) for properly …

An elastic rotative nonlinear vibration absorber (ERNVA) as a passive suppressor for vortex-induced vibrations

GR Franzini - Nonlinear Dynamics, 2021 - Springer
Vortex-induced vibration (VIV) is a self-excited and self-limited flow-induced vibration
phenomenon of importance for both the academic and the technological communities …

Piezoelectric energy extraction from a cylinder undergoing vortex-induced vibration using internal resonance

A Joy, V Joshi, K Narendran, R Ghoshal - Scientific Reports, 2023 - nature.com
A novel concept of utilizing the kinetic energy from ocean currents/wind by means of internal
resonance is proposed to address the increasing global energy demand by generating …

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 …

Numerical studies on passive suppression of one and two degrees-of-freedom vortex-induced vibrations using a rotative non-linear vibration absorber

T Ueno, GR Franzini - International Journal of Non-Linear Mechanics, 2019 - Elsevier
This paper presents a numerical investigation on the use of a rotative non-linear vibration
absorber (NVA) as a passive suppressor for the vortex-induced vibrations phenomenon …

Flow and air-entrainment around partially submerged vertical cylinders

V Ageorges, J Peixinho, G Perret - Physical Review Fluids, 2019 - APS
In this study, a partially submerged vertical cylinder is moved at constant velocity through
water, which is initially at rest. During the motion, the wake behind the cylinder induces free …

Characterization of variable hydrodynamic coefficients and maximum responses in two-dimensional vortex-induced vibrations with dual resonances

H Zanganeh, N Srinil - Journal of Vibration and …, 2014 - asmedigitalcollection.asme.org
A phenomenological model and analytical–numerical approach to systematically
characterize variable hydrodynamic coefficients and maximum achievable responses in two …