Results 41 to 50 of about 824 (150)

The Evaluation of Seakeeping Performance of a Ship in Waves

Journal of the Society of Naval Architects of Japan, 1984
In this paper, a synthetic method for evaluating the seakeeping performance of a ship in waves is studied.For the prediction and evaluation of irregular phenomena to be correlated each other, the multi-dimensional Rayleigh's joint probability density function and the cumulative distribution function are approximated.According to this approximated ...
Kim, Soon-Kap, Naito, Shigeru, Nakamura, Shoichi   +2 more
openaire   +2 more sources

Numerical Method to Simulate Self‐Propulsion of Aframax Tanker in Irregular Waves

Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
With the implement of ship energy efficiency design index (EEDI), computational fluid dynamics (CFD) technique has become an effective method to predict the ship performance and further guide the designers to optimize hull lines. However, due to the complexity of the propeller‐hull interactions and the ship’s complex motions in waves, accurately ...
Gui-sheng Peng, Yang Gao, Wang Wen-hua, Lin Lin, Yi Huang, Alessandro Tasora   +5 more
wiley   +1 more source

Optimizing the Seakeeping Performance of Ship Hull Forms Using Genetic Algorithm [PDF]

TransNav, 2014
Hull form optimization from a hydrodynamic performance point of view is an important aspect of ship design. This study presents a computational method to estimate the ship seakeeping in regular head wave. In the optimization process the Genetic Algorithm
Hassan Bagheri, Hassan Ghassemi, Ali Dehghanian   +2 more
doaj   +1 more source

Long-term Loads based on Evaluation of Resistance and Seakeeping Performances for a Desalination Plant Ship [PDF]

한국해양공학회지, 2019
Desalination plant ships have been recently regarded as one of the probable solutions for drought seasons in many countries. Because desalination plants should be mounted on the desalination ships and special purpose storages such as salty waste water ...
Jae-bin Lee, Kwang-Jun Paik, Joonmo Choung   +2 more
doaj   +1 more source

Characteristics of a series of high speed hard chine planing hulls - part II: performance in waves

, 2011
An experimental investigation into the performance of high speed hard chine planing hulls in irregular waves has been conducted. A new series of models representative of current design practice was developed and tested experimentally. Measurements of the
Taunton, D.J., Shenoi, R.A., Hudson, D.A.   +2 more
core   +1 more source

Seakeeping performance of a rounded hull catamaran in waves using CFD approach

Journal of Mechanical Engineering and Sciences, 2017
Prediction of the seakeeping performance of a ship in the earlier ship’s design step is necessary to ensure the safety of navigation during sailing. To accommodate such a demand, this research proposes to analyse the seakeeping performance of a rounded ...
A. Fitriadhy, N.S. Razali, N. AqilahMansor   +2 more
doaj   +1 more source

Hydrodynamic performance and appendage considerations of wave-piercing planing craft overlapping waves and porpoising

Journal of Fluid Science and Technology, 2020
This work addresses the numerical study of wave-piercing planing hull and related hydrodynamic performance as the appendages. From the half century ago, the interest in high-speed planing crafts has been advanced toward maintaining performance stably ...
Sangwon KIM, Nobuyuki OSHIMA, Sangeui LEE, Gyoungwoo LEE, Kwangcheol SEO   +4 more
doaj   +1 more source

Research on ship motion characteristics in a cross sea based on computational fluid dynamics and potential flow theory

Engineering Applications of Computational Fluid Mechanics, 2023
The motion response of a ship in a cross sea is studied based on computational fluid dynamics. Firstly, according to the established numerical pool, and based on the Reynolds-averaged Navier–Stokes equations and the re-normalisation group K–ϵ turbulence ...
Yu Lu, Wu Shao, Zhuhao Gu, Chunxiao Wu, Chuang Li   +4 more
doaj   +1 more source

Fatigue Strength Assessment of Trimaran Cross‐Deck Structure Based on Spectral and Simplified Fatigue Method

Mathematical Problems in Engineering, Volume 2019, Issue 1, 2019., 2019
In order to investigate the fatigue behaviour of trimaran cross‐deck structural details, the spectral and simplified fatigue analysis approaches are proposed. In spectral fatigue approach, three‐dimensional (3D) linear potential flow theory and global FE analysis are used for wave loads and stress transfer functions calculation; the stochastic spectral
Chunbo Zhen, Tianlin Wang, Pengyao Yu, Liang Feng, Raffaele Albano   +4 more
wiley   +1 more source

Establishment of the Unified Maneuvering and Seakeeping Dynamic Model for Submarines Moving in Horizontal Plane near Free Surface

Journal of Marine Science and Engineering
When a submarine moves near the free surface, the lift and drag characteristics that act on it are different compared to when in deep water; for example, waves on the free surface cause submarine motions that are not seen in deep water conditions and ...
Aeri Cho, Hoang Thien Vu, Tien Long Bien, Hyeon Kyu Yoon, Anh Khoa Vo, Thi Thanh Diep Nguyen   +5 more
doaj   +1 more source