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Optimization of the Wake Oscillator for Transversal VIV
Journal of Marine Science and Engineering, 2022 Vibrations of slender structures associated with the external flow present a design challenge for the energy production systems placed in the marine environment. The current study explores the accuracy of the semi-empirical wake oscillator models for vortex-induced vibrations (VIV) based on the optimization of (a) the damping term and (b) empirical ...
Ekaterina Pavlovskaia +2 more
exaly +5 more sources
Freespan Analysis for Subsea Pipeline Integrity Management Strategy
Journal of Materials Exploration and Findings, 2023 Over a rough seabed or on seabed subject to scour, freespans can occur when contact between a subsea pipeline and the seabed is lost over an acceptable distance.
Nurul Hadi +4 more
doaj +1 more source
Application of nonlinear stiffness mechanism on energy harvesting from vortex-induced vibrations
Frontiers in Marine Science, 2023 This study investigates the potential of vortex-induced vibration (VIV) as a renewable energy source, achieved when fluid flow interacts with a bluff body, inducing self-sustained oscillations through vortex shedding in the wake.
Zhenguo Gao +4 more
doaj +1 more source
Vortex-Induced Vibration Recognition for Long-Span Bridges Based on Transfer Component Analysis
Buildings, 2023 Bridge vortex-induced vibration (VIV) refers to the vertical resonance phenomenon that occurs in a bridge when pulsating wind passes over it and causes vortices to detach.
Jiale Hou +7 more
doaj +1 more source
Experimental Study on Vibration of a Rotating Pipe in Still Water and in Flow
Polish Maritime Research, 2023 To illustrate the vibration characteristics of a rotating pipe in flow, experiments were conducted for a pipe in flow, a rotating pipe in still water and a rotating pipe in flow. For the pipe in flow without rotation, the trajectory diagram is ‘8’ shaped.
Geng Xinge +5 more
doaj +1 more source
Journal of Marine Science and Engineering, 2023 The long-span double-deck truss girder bridge has become a recommend structural form because of its good performance on traffic capacity. However, the vortex-induced vibration (VIV) characteristics for double-deck truss girders are more complicated and ...
Gang Yao +5 more
doaj +1 more source
Applied Sciences, 2023 Large-span suspension bridges are susceptible to wind loads. Therefore, a more precise analysis of their wind-induced vibration response is necessary to ensure the structure’s absolute safety.
Gang Yao +5 more
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Vortex-Induced Vibration Characteristics of a PTC Cylinder with a Free Surface Effect
Energies, 2020 The experimental study of vortex induced vibration needs to be carried out in water tunnel, but in previous associated simulation work, the water tunnel was treated as an infinite flow field in the depth direction with the effect of the free surface ...
Dahai Zhang +4 more
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Journal of Marine Science and Engineering, 2023 Sand waves are commonly formed on the sandy seabed of the continental shelf and characterized by their regular wave-like shape. When a submarine pipeline is laid on this type of seabed, it often experiences free spans due to the unevenness of the seabed.
Xing Zou +4 more
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FEATURES OF STORAGE AND TRANSPORTATION OF NARCOTIC ANALGESICS IN CONDITIONS OF EMERGENCY SITUATIONS
Фармация и фармакология (Пятигорск), 2015 The article performs the analysis of the current state regulatory-legal framework relating to the use of narcotic analgesics in health care institutions in emergencies peace and wartime.There are developed recommendations for adapting the requirements ...
P. V. Oliynyk, B. P. Hromovyk
doaj +1 more source