Vortex Induced Vibrations
Vortex Induced Vibrations
... 2. Background 2.1 Vortex Induced Vibration Vortex induced vibrations are a result of vortex shedding phenomenon. Vortices can be produced when a bluff body is placed within a ...
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Reconfiguration and the reduction of vortex induced vibrations in broad leaves
... Flexible plants, fungi and sessile animals reconfigure in wind and water to reduce the drag acting upon them. In strong winds and flood waters, for example, leaves roll up into cone shapes that reduce drag compared with ...
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Effects of damping and Reynolds number on vortex induced vibrations
... Chapter 7 Summary and Future Considerations In this chapter we summarize our major results and make recommendations for future work. In Section 7.1 we discuss the basic results that includes the advantages of the ef- ...
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Harbor seal vibrissa morphology suppresses vortex induced vibrations
... with vortex- induced vibrations (VIVs) – that is, the oscillations due to vortex shedding that occur when an object is dragged through the ...
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Nonlinear multi-mode interactions in subsea risers undergoing vortex-induced vibrations
... undergoing vortex-induced vibrations based on a computationally efficient reduced-order fluid-structure interaction ...the vortex-induced vibration characteristics of risers under ...
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An Advanced Measurement System for Vortex Induced Vibrations Characterization in Large Scale Risers
... on vortex induced vibrations on small riser models (8-10 m in length), the number of experiments on large-scale risers is limited, mainly due to technical complexity, logistics, and cost involved in ...
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Numerical simulations of vortex-induced vibrations on vertical cylindrical structure with different aspect ratios
... of Vortex-Induced Vibrations on Vertical Cylindrical Structure with Different Aspect Ratio This paper presents a Computational Fluid Dynamics (CFD) study of Vortex- Induced Vibration ...
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Analysis and prediction of vortex-induced vibrations of variable-tension vertical risers in linearly sheared currents
... Department of Naval Architecture and Marine Engineering, University of Strathclyde, Henry Dyer Building, Glasgow, G4 0LZ, Scotland, UK Abstract Many studies have tackled the problem of vortex-induced ...
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Numerical Simulation of Vortex-Induced Vibrations of Free Span Pipelines Including Nonlinear Soil Models
... In this thesis, vortex-induced vibrations of free span pipelines have been investigated in numerical simulations including CFD and FSI. A pipeline motion solver with governing equations of a ...
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CFD Simulation of Vortex–Induced Vibrations of Free Span Pipelines Including Pipe-Soil Interactions
... ii ABSTRACT This paper presents a three dimensional numerical simulation of free span pipelines under vortex-induced vibrations (VIV) and pipe-soil interactions. Pipeline is simplified as a ...
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Numerical Investigation of the Influence of Span wise Force Variation in Circular Cylinders Undergoing Vortex Induced Vibrations at High Reynolds Number
... moment induced by the lift forces, as well as the resultant lift and drag forces on the cylinder were input into the Runge-Kutta routines described ...of vortex induced vibrations, and have ...
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The effect of spacing on the vortex-induced vibrations of two tandem flexible cylinders
... L t C R l t dl . (13) FIG. 15 shows the variation of the nondimensional correlation lengths (L C /D) with V r for flexible cylinders. In general, L C /D is quite large for low V r around 4 or 5, representing the ...
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Numerical and experimental comparisons of vortex-induced vibrations of marine risers in uniform/sheared currents
... To further validate and improve the presented theoretical reduced-order models and numerical results, the in-house experimental campaign will be established along with some CFD studies. These will provide new ...
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Modelling of coupled cross-flow/in-line vortex-induced vibrations using double Duffing and van der Pol oscillators
... Department of Naval Architecture & Marine Engineering, University of Strathclyde, Henry Dyer Building, Glasgow G4 0LZ, Scotland, UK Abstract Many studies have typically applied a linear structural spring-mass-damper ...
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Studi Numerik Interaksi Vortex-Induced Vibrations (VIV) Antara Empat Silinder Tegak Fleksibel Dengan Konfigurasi In-Line Square Dalam Aliran Uniform
... struktur vortex 3-D, azpect ratio, dan spacing ratio pada jajaran silinder belum ...terkait vortex induced vibration pada jajaran silinder terutama dalam konfigurasi inline ...
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Flow induced vibrations of microcantilevers
... resulting vibrations are measured using an optical lever ...the vibrations are recorded as a function of flow ...the vibrations begin at Reynolds numbers (in cantilever dimensions) substantially ...
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In-line flow-induced vibrations of a rotating cylinder
... flow-induced vibrations of an elastically mounted circular cylinder, free to oscillate in the direction parallel to the current and subjected to a forced rotation about its axis, are investigated by means ...
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Continuous Sliding Mode Control of Flow-Induced Vibrations
... Currie's lift-oscillator model for vortex-induced vibrations (1970) and Parkinson and Smith's model for galloping oscillations (1964) are given; the concept of the Sliding M[r] ...
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Control of across-wind vortex shedding induced vibrations in tall buildings using the tuned mass-damper-inerter (TMDI)
... Herein, a linear reduced-order structural system is developed, defined by a diagonal mass matrix and full damping and stiffness matrices, which captures faithfully the dynamic properties of a detailed finite element ...
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A Review of Human Induced Vibrations on Footbridges
... vertical vibrations and 2.5 Hz for lateral and torsional vibrations, comfort criteria are defined in terms of accelerations without frequency dependence (Eurocode 0, Annex ...
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