... vibrations were suppressed within a certain range of flow velocity and density range. INTRODUCTION The seabed is rich in key battery materials such as cobalt, copper, manganese, and rare earth elements required for emerging industries. According to data from the Norwegian Coastal Administration, valuable...

... in safe conditions. In this study, linear microtremor array and Distributed Acoustic Sensing (DAS) measurements using passing vehicle vibrations were carried out for highway embankments. The measurement results from both methods were compared. S-wave velocity distribution in the embankment obtained by DAS...

... is assembled by large amounts of floaters with propeller and the sea crossing structure is combined with the driving structure by columns. diagram hydraulic character vibration subsea system transportation platform vortex tab hydraulic diagram floater norske veritas engineering south china...

... ABSTRACT The excitation generated by the operation of equipment inside the ship will be transmitted through three channels: equipment-base-hull, equipment-pipeline-hull, and the air, causing vibration of the ship structure. The vibration of the equipment base and air transmission channel can...

... frequency, potentially inducing structural resonance that significantly impacts fatigue strength. Ship measurements on the North Atlantic route have revealed that fatigue damage caused by such wave-induced vibration constitutes nearly half of the overall damage (Storhaug G., 2003). Hence, when conducting...

... ABSTRACT Dynamic response refers to noise and vibration excited by environment, propulsion, or equipment relevant for ships and offshore units. Consequences to structural integrity or comfort may be assessed through numerical analysis, model tests or full-scale measurements influenced...

... where the ship's crew is patrolling the machinery rooms, looking for anomalies such as leaks, unusual smell, sound, vibrations, temperatures, air quality, oddly placed objects, or any other kind of anomaly, and making obvious or even intuitive assumptions about the condition, the risks, and potential...

... property drilling fluid geologist cement chemistry drilling fluid selection and formulation cement property lignite resin spnh wang cement slurry vibration filtrate reducer sulfonated drilling fluid biao wang sulfonated phenolic resin smp-ii agent drilling fluid chemistry contamination...

..., accounting for 72% of all failure mode criticality numbers, are: "leakage" in most parts and components, such as seals and subunits (e.g., lubrication); "pressure loss" in accumulators (with leakage as the dominant failure mechanism); actuators "mechanical failure"; motors "noise and vibration...

... will occur, and in serious cases, collision may be induced by deformation and vibration of the riser body, threaten the safety of offshore platform. In this paper, based on ANSYS-FLUENT, a two-dimensional real-size drilling riser-production riser numerical model was established, and the SST K-ω model...

... Vibration Anomalies in Offshore Wind Turbines Qing Wang1,2, Qiang Liu2, Xiaoming Zhan2, Xingyu Yan1,2 1. POWERCHINA HUADONG ENGINEERING CORPORATION, Hangzhou, Zhejiang, China 2. Zhejiang Huadong Mapping and Engineering Safety Technology co., Ltd, Hangzhou, Zhejiang, China ABSTRACT In a study on a 10-MW...

...Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16 21, 2024 Copyright © 2024 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-78-4; ISSN 1098-6189 www.isope.org Vibration analysis of a pipe...

... vibration; flow pattern evolution. INTRODUCTION In the Subsea Production System, the subsea jumper plays important role as pipe connector, facilitating alignment and reach between subsea structures such as trees and manifolds for transporting multiphase flows. The integration of multiple bends in the jumper...

... ABSTRACT Radiated noise undermines the stealth and safety of underwater vehicles. This study calculates the vibration and radiated noise of the power cabin for an underwater vehicle, followed by a correlation analysis. The results demonstrate a strong correlation coefficient of approximately...

... pipe vibration cylinder sediment fidelity acquisition module sediment disturbance sampler module sampling system characteristic steel pipe underwater sediment fidelity acquisition module stratified water sample deformation monitoring design Proceedings of the Thirty-fourth...

... partial pressure recovery to occur in the wake, thus reducing the severity of the adverse pressure gradient on the suction surface (Baker et al., 2006). Simultaneously, marine propellers typically use this blunt trailing edge hydrofoil type to reduce or avoid vortex-induced vibration due to the proximity...

... of Two-Degree-of-Freedom Vortex-Induced Vibrations Erdem Aktosun1, Ersegun Deniz Gedikli 2 1Department of Shipbuilding and Ocean Engineering, Izmir Ka tip C¸ elebi University, Izmir, Turkey 2Department of Ocean and Resources Engineering, University of Hawaii at Manoa, Honolulu, UH, USA ABSTRACT...

... engineering. However, due to harsh marine environment and complex drilling load, fatigue damage caused by vortex-induced vibration (VIV) is one of the key factors determining the reliable operation of it. Therefore, it is important to study the fatigue damage to ensure its safe operation. In this study...

... ABSTRACT In this study, we conduct an experimental investigation into the dynamic response of two hollow cylindrical cantilever beams that are sealed with plastic caps at the end and are subjected to vortex-induced vibrations. We conducted experiments using two polycarbonate cylinders...

... the real scale, even if indirectly. Thus, seeking to contribute to the use of values closer to reality, even if still obtained based on a subgroup of the aspects that have an impact on the dissipation of vibrations in risers, which is the relative contribution of the layers, this work aims to measure...