Results 31 to 40 of about 219,136 (180)

MOORED SHIP RESPONSE IN IRREGULAR WAVES

open access: yesCoastal Engineering Proceedings, 1982
The traditional concept of representing a "random" sea state by just a variance spectral density has been found to be insufficient for modelling the slow drift oscillations of large moored ships. This paper illustrates, through experimental investigations, the importance of including wave grouping as an additional design parameter.
E.P.D. Mansard, B.D. Pratte
openaire   +2 more sources

Experimental investigation of the mooring system of a wave energy converter in operating and extreme wave conditions [PDF]

open access: yes, 2020
A proper design of the mooring systems for Wave Energy Converters (WECs) requires an accurate investigation of both operating and extreme wave conditions.
Begovic E.   +7 more
core   +1 more source

Prediction of Ship Motions in Irregular Waves Based on Response Amplitude Operators Evaluated Experimentally in Noise Waves

open access: yesPolish Maritime Research, 2021
The most common methods for predicting ship roll motions in a specified sea state are direct measurements of motions in a representative irregular wave realisation (time domain) or calculations of motions from response amplitude operators (RAOs) in the ...
Bielicki Sebastian
doaj   +1 more source

Orbital Velocities in Irregular Waves

open access: yesCoastal Engineering 1980, 1980
Experimental and theoretical study to determine the applicability of linear wave theory for the description of the velocity field in irregular waves. A comparison between theory and measurement was executed both in frequency and in time domain. In frequency domain by means of the experimentally and theoretically determined frequency response functions ...
openaire   +2 more sources

Experimental Investigation of Pore Pressure on Sandy Seabed around Submarine Pipeline under Irregular Wave Loading

open access: yesSensors
The propagation of shallow-water waves may cause liquefaction of the seabed, thereby reducing its support capacity for pipelines and potentially leading to pipeline settlement or deformation.
Changjing Fu, Jinguo Wang, Tianlong Zhao
doaj   +1 more source

Slow Drift-Oscillations of a Ship in Irregular Waves [PDF]

open access: yesModeling, Identification and Control, 1980
A procedure to calculate horizontal slow drift excitation forces on an infinitely long horizontal cylinder in irregular beam sea waves is presented. The hydrodynamic boundary-value problem is solved correctly to second order in wave amplitude. Results in
Odd M. Faltinsen, Arne E. Løken
doaj   +1 more source

A Numerical Study on the Performance of the 66k DWT Bulk Carrier in Regular and Irregular Waves

open access: yesJournal of Marine Science and Engineering, 2023
Accurate resistance performance evaluation is essential to predict the minimum propulsion horsepower required for ships in real sea. Therefore, in this paper, the added resistance performance of K-Supramax in various wave conditions was calculated using ...
Gu-Hyeon Kim   +6 more
doaj   +1 more source

Rescattering corrections and self-consistent metric in Planckian scattering [PDF]

open access: yes, 2014
Starting from the ACV approach to transplanckian scattering, we present a development of the reduced-action model in which the (improved) eikonal representation is able to describe particles' motion at large scattering angle and, furthermore, UV-safe ...
Ciafaloni, Marcello, Colferai, Dimitri
core   +1 more source

Kalman filter technique for estimating encountered wave profiles and unmeasured ship responses using measurement data in short-crested irregular waves

open access: yesApplied Ocean Research
Understanding the condition of a ship during operation is crucial for ensuring hull safety. This can be achieved either by directly monitoring the ship's hull or by using response estimation models when the wave field is known.
Yusuke Komoriyama   +4 more
doaj   +1 more source

ASYMMETRICAL INTERFERENCE OF COUNTER OBLIQUE SHOCK WAVES [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
Subject of Study. The paper deals with data on the interference of shock waves with different intensity and slope angles to the flow of them. This problem is related to the problem of designing air intakes to the internal compression and detonation ...
P. V. Bulat   +2 more
doaj   +1 more source

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