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Keywords: spectrum
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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-24-465
... hotspots. The research results demonstrate that the relative error between calculated results and measured values is less than 5%, with a 9% improvement in stress spectrum twinning accuracy compared to previous studies. The deviation from measured peak values is only 1.1%, showcasing the substantial...
Proceedings Papers
Research on the Hydroelastic Responses and Connector Forces of a Floating Bridge in Frequency Domain
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-003
... used irregular wave spectra include the Jonswap spectrum (Joint North Sea Wave Project), P-M spectrum (Pierson Moskowitz), ITTC (International Towing Tank Conference) spectrum, and so on. In this paper, the Jonswap spectrum is used to predict the connector loads of the floating bridge, and the spectrum...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-534
... ABSTRACT Ship sea trials are considered to be able to provide the most reliable data on the behavior of the ship in various conditions. In this research, ship motion performance under real sea is analyzed with the wave spectrum measured by a wave buoy deployed in the Costal area of Qingdao...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-513
... cause problems to maintain the maneuverability of ships, so it is necessary to review minimum propulsion power in adverse conditions. According to MEPC.1/Circ.850/Rev.3 (2021), when calculating minimum propulsion power, it is recommended to consider the direction of wave using the directional spectrum...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-572
... propeller ship amplitude sustainable development resistance efficiency characteristic simulation coefficient calculation spectrum oscillation equation frequency application politis optimization prediction conjunction subplot bc hull Proceedings of the Thirty-fourth (2024...
Proceedings Papers
Gaute Storhaug, Michael Holtmann, Ulrich Behrens, George Jagite, Shan Wang, Daniele Dessi, Tatiana Pais, Hiroyuki Takahashi, Sharad Dhavalikar, Geir Sagvolden, Victor de Diego, Sun Je Kim
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-567
... vibration container ship frequency contribution spectrum international ocean loading participant 3 quantity vibration frequency participant 6 prediction benchmark participant 1 thirty-fourth polar engineering conference calculation Proceedings of the Thirty-fourth (2024) International...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-092
... sustainable development correction copernicus marine spectrum international ocean 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...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-131
... and environmental condition was calculated by MLife a MATLAB-based computer program developed by NREL. DEL is a constant-amplitude fatigue loading that occurs at a fixed load mean and frequency, which produces damage comparable to that of variable-spectrum loading. MLife estimates a short-term damageequivalent load...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-116
... development deviation experiment investigation w1&ir1 similarity mw semisubmersible wind turbine social responsibility frequency engineering geology ocean engineering fwt subsea system platform berthelsen rotor coefficient myb spectrum basin Proceedings of the Thirty-fourth (2024...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-109
... learning stiffness application sustainability sustainable development converter displacement pto dimension excitation simplification simulation appl ocean res wave energy harvesting wavelength spectrum Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-120
... and Hydrodynamic Response of Floating Offshore Wind Turbine under Ochi-Hubble Bi-Modal Wave Spectrum Yingjie Xue1, Xiaolong Yang2, Decheng Wan1* 1 Computational Marine Hydrodynamics Lab (CMHL), School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China 2 Offshore Oil...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-247
..., the formula which considers the effects of quadrupole is as follows: 12 2 2 = 0 )] + 2 ] = + 0 ) (7) (8) = + (9) Post-processing of Spectrum Analysis The fluctuating pressure signals processed in the turbulent boundary layer are generally random signals, which cannot be expressed in clear mathematical...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-322
... code has been previously validated against various commercially available CFD models (Yu et al., 2022; Dong et al., 2023) and is suitable to this study. Firstly, the verification and validation of the wave parameter for ITTC (International Towing Tank Conference) standard wave spectrum are conducted...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-315
... pressure fluctuations are more stringent than those for velocity predictions. Under the condition of x > 20 and z > 30, the low-frequency component of the pressure fluctuation spectrum matched well with DNS and experimental data. Previous research on WMLES has predominantly focused on timeaveraged...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-372
..., we obtain the wave spectrum corresponding to the simulation results. Fig. 11 compares this spectrum with the target spectrum, showing good consistency between these two. Fig. 8. Simulated free surface elevation of solitary waves propagating over a constant water depth. The curves a, b, and c...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-353
... to local and fast nonlinear evolution of the spectrum. Therefore, the wave group morphology and kinematics of the steep wave group are very different from the linear evolution. This study focuses on investigating the wing wave phenomenon, which is the observed direction of travel, at approximately ±35 deg...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-358
... ABSTRACT This paper proposed a novel noncontact method to measure threedimensional water surface based on thermography and stereovision, effectively avoiding issues like specular reflection, transparency, and texture-less encountered in the visible light spectrum. A measurement experiment of regular waves...
Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-354
... of the wave crest (both crest height and crest width) as well as the corresponding changes to the frequency spectra. Previous work has shown that, in deep water, near the formation of a large focused event rapid changes take place, along with severe energy transfers evident in the corresponding wave spectrum...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-575
... ABSTRACT In this paper, the large-eddy simulation (LES) method with WALE sub-grid scale model is applied to study the wall pressure fluctuation characteristic of a NACA0015 airfoil protrusion. The flow field, pressure fluctuating time-average characteristic, self-power spectrum, and wavenumber...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-590
...-Averaged Navier-Stokes (RANS) solver and Ffowls Williams-Hawkings (FW-H) acoustic analogy equation has been adopted to calculate the unsteady cavitation dynamics and the power and frequency spectrum of the noise. It finds out that the sound pressure level of the noise in high-frequency region has...
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