Results 21 to 30 of about 27,181 (312)
Numerical simulation on the vortex-induced vibration characteristics of staggered marine riser
You-qi chuyun, 2020 In order to master the vortex-induced vibration laws of marine riser system, the generalized α method was developed to solve the cylinder vibration equation, and the stability of the solution method was enhanced.
Zehua YE +5 more
doaj +1 more source
Journal of Marine Science and Engineering, 2023 This study investigated vortex-induced vibrations of marine risers in Ocean Thermal Energy Conversion systems. Flume experiments were conducted under two conditions: Condition 1 was with a fixed riser bottom, and Condition 2 was with a fixed bottom on a ...
Qiurui Cai +6 more
doaj +1 more source
Vortex-induced vibrations of a cylinder with tripping wires [PDF]
Journal of Fluid Mechanics, 2001 Thin wires are attached on the outer surface and parallel to the axis of a smooth circular cylinder in a steady cross-stream, modelling the effect of protrusions and attachments. The impact of the wires on wake properties, and vortex-induced loads and vibration are studied at Reynolds numbers up to 4.6 × 104, with 3.0 × 104 as a focus point. For a
Hover, F.S. +2 more
openaire +1 more source
Numerical Investigation of Vortex-Induced Vibrations of a Rotating Cylinder near a Plane Wall
Journal of Marine Science and Engineering, 2023 Numerical simulations are carried out to investigate the vortex-induced vibrations of a two-degree-of-freedom (2DOF) near-wall rotating cylinder. Considering the effects of gap ratio, reduced velocity and rotational rate, the amplitude response, wake ...
Ran Li +6 more
doaj +1 more source
Lock-in of the vortex-induced vibrations of a long tensioned beam in shear flow [PDF]
, 2011 The occurrence of lock-in, defined as the local synchronization between the vortex shedding frequency and the cross-flow structural vibration frequency, is investigated in the case of a tensioned beam of length to diameter ratio 200, free to move in both
Rémi Bourguet +5 more
core +1 more source
Shock and Vibration, 2015 Although not always resulting in catastrophic failures, vortex-induced vibration (VIV) response can seriously impact the fatigue life and functionality of bridges, especially for separate pairs of box girders in cable-stayed bridges.
Han Xin He, Jia Wu Li
doaj +1 more source
Vortex-induced vibration of a rotating sphere [PDF]
Journal of Fluid Mechanics, 2017 Vortex-induced vibration (VIV) of a sphere represents one of the most generic fundamental fluid–structure interaction problems. Since vortex-induced vibration can lead to structural failure, numerous studies have focused on understanding the underlying principles of VIV and its suppression.
A. Sareen +5 more
openaire +5 more sources
Vortex-induced vibrations of a long flexible cylinder in shear flow [PDF]
, 2010 We investigate the in-line and cross-flow vortex-induced vibrations of a long cylindrical tensioned beam, with length to diameter ratio L/D = 200, placed within a linearly sheared oncoming flow, using three-dimensional direct numerical simulation.
Triantafyllou, Michael S. +5 more
core +1 more source
Journal of Marine Science and Engineering, 2023 Cylindrical structures are widely used in offshore and marine engineering, but they may suffer from vortex-induced vibration under the influence of ocean or wave currents, which can lead to severe fatigue damage. In this study, we applied the open-source
Hongwu Zhao, Yeon-Won Lee
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Distributed lock-in drives broadband vortex-induced vibrations of a long flexible cylinder in shear flow [PDF]
, 2013 A slender flexible body immersed in sheared cross-flow may exhibit vortex-induced vibrations (VIVs) involving a wide range of excited frequencies and structural wavenumbers.
Triantafyllou, Michael S. +2 more
core +1 more source