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Keywords: rotation
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Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-035
..., watertight connectors, and other components. When power is supplied to the peristaltic pump drive structure, the drive motor drives the roller inside the head to rotate to carry out seawater filtration. Fig.1 The picture of the marine microbial multi-channel in-situ sampling system. Fig. 2 Schematic...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-594
... ABSTRACT This paper presents a control method for adjusting propeller rotation speed to reduce cavitation observed on the propeller suction side, attributed to a decrease in flow velocity in the wake field. The primary goal is to decrease the cavity volume while concurrently preventing...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-593
... features individual flapping foils that rotate around a vertical axis. It works as a bio-mimicking device as the trajectories of the foils simulate the motion of whale or dolphin tails, promoting higher efficiencies of even 20 % or more when compared to conventional screw propeller solutions. To obtain...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-606
... sensor geophone propeller geometry power artificial intelligence frequency geometry ship rotation seismic sensor Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16 21, 2024 Copyright © 2024 by the International Society...
Proceedings Papers
Guojing Zhu, Jin Yang, Shuzhan Li, Fangfei Huang, Jiakang Wang, Kejin Chen, Qianling Xue, Shu Jia, Kun Jiang
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-168
...; Jiao et al., 2009; Zhang et al., 2004; Li et al., 2013), many scholars have carried out extensive research by using large-scale finite element software to carry out numerical simulation. Sun et al. (2010) consider the centre of rotation is located at 67% L depth below the surface of the soil inside...
Proceedings Papers
Julien Caine, Alexandre S. Hansen, Mahir Abdullayev, Adel Jebali, Ludovic Krauss, Rafael F. Solano, Jonylson Amarante
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-204
... buckling initiation for flowlines operating under high internal pressure and temperature (HPHT) conditions. In particular, the mitigations proposed to address the RC over-rotation challenges in the sagbend during installation will be presented. The RC feature integrity assessment considering high top...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-228
... offshore pipeline feasibility assessment arctic engineering torsional rotation residual curvature international conference as-laid torsional rotation flowchart rotation installation limitation lateral ibrahim Proceedings of the Thirty-fourth (2024) International Ocean and Polar...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-347
... on sand with larger particles is smaller and, therefore, boulders move further. Moreover, sandy slopes stimulate boulders to rotate or turn over. The friction coefficient of a concrete block on a sandy slope is approximately 0.75. INTRODUCTION Most of the tsunami studies, even in the nearshore...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-308
... of gravity of the mooring body. The displacement of the mooring platform in three directions relative to the OXYZ coordinate system is commonly referred to as surge (forward and backwards), sway (sideways) or heave (up and down). The angle of rotation of the mooring platform in three directions relative...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-048
... speed rotation turbine rotor blade julia gebauer wind turbine Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-80-7...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-196
... elucidates that cyclic loading is expected to lead to an increase of the horizontal deformation with ongoing cyclic loading. Simultaneously, an increase of the permanent rotation of the foundation occurs. In particular for foundation structures of offshore wind turbines, strict criteria regarding...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-264
... can rotate fast to realize rapid direction change. An attitude regulation mechanism is used to ensure attitude stability and a buoyancy adjustment mechanism is designed to enable the vehicle to dive and ascend with low energy consumption. Finally, the excellent turning performance of the SUV is proved...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-450
... is established. The results show that when the ship is sailing, the position of the bearing changes due to the deformation of the hull, and the shaft rotates slightly around the edge of the bearing, which causes the internal pressure distribution of the bearing to change. INTRODUCTION The ship's shaft system...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-013
... reservoir characterization angular velocity hydraulic collecting detector attitude angle hydraulic collection inertial reference frame sum acceleration metals & mining particle reference frame pipe upstream oil & gas spherical detector coordinate system rotation sensor...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-045
... ABSTRACT A novel multivariate coherent effect-based estimation method of wind loads is proposed to consider the coherent effect of wind loads in rotating and nonrotating regions during blade rotation. Firstly, a wind spectrum model with rotation effect is derived. Then multivariate coherence...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-093
..., 2019). wind energy regular monopile aspect ratio platform design winged monopile lateral response upstream oil & gas subsea system scour hole lateral load pile rotation wing efficiency foundation engineering limit state monopile lateral bearing capacity rotation local scour...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-185
... analysis results if snake lay is used as the lateral buckling initiation method, since the pipeline rotation in such a case is normally very limited. However, it could be different for a pipeline with Residual Curvature Method (RCM) used to trigger lateral buckling. If a Residual Curvature (RC) section has...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2125
... are required in total at each end. At and the reference rotation for friction f ric,re f . The rst two are input the startup end, typically the two component pipes are rotationally xed parameters, and the local contact force is calculated from the solution relative to each other at a bulkhead which itself...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1244
... characteristics of a twin-rotor tidal turbine, considering impacts of rotor spacing and rotors rotation direction. The experimental results show that the near wake behind the rotor is independent of each other, while the wakes start mixing into one at certain distance downstream. With an increase of rotor spacing...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2206
.... According to DNV guidelines (DNV, 2014), the permanent accumulated rotation at the foundation top should not exceed 0.25°. In southeast China Sea, typhoon occurs every year (Li et al., 2013; Letcher, 2017). The strength and stiffness of seabed soil will be degraded under extreme cyclic loadings...
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