Results 41 to 50 of about 245 (156)

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

Ship Formation Control Using Nonlinear Model Predictive Control With Safe Speed Constraints and Tidal Elevation Variations

IET Intelligent Transport Systems, Volume 19, Issue 1, January/December 2025.
1. An adaptive speed control method is proposed to execute the ship formation trajectory tracking task more efficiently and safely while entering port with tidal elevation variations. 2. A distributed ship formation controller based on the leader‒follower structure is designed to govern the coordinated motion of formation members more flexibly. 3.
Fanglie Wu, Xin Su, Tingting Cheng, Haitong Xu, Bing Wu   +4 more
wiley   +1 more source

Theoretical and Experimental Study on Nonlinear Hydroelastic Responses and Slamming Loads of Ship Advancing in Regular Waves

Shock and Vibration, Volume 2018, Issue 1, 2018., 2018
Wave loads estimation and structural strength evaluation are the fundamental work at the ship design stage. The hydroelastic responses and slamming strength issues are also concerned especially for large‐scale high‐speed ships sailing in harsh waves. To accurately predict the wave‐induced motions and loads acting on the ship sailing in regular waves, a
Jialong Jiao, Yulin Zhao, Yufei Ai, Chaohe Chen, Tianhui Fan, Franck Poisson   +5 more
wiley   +1 more source

The Effect of Hull Form Parameters on the Hydrodynamic Performance of a Bulk Carrier

Journal of Marine Science and Engineering, 2021
In this study, the effect of joint optimization of the principal dimensions and hull form on the hydrodynamic performance of a bulk carrier was studied.
Rui Deng, Shigang Wang, Yuxiao Hu, Yuquan Wang, Tiecheng Wu   +4 more
doaj   +1 more source

On the Nonlinear Vibrational Responses of a Large Vessel with a Broad Bow Flare under Wave Excitation: Theory and Experiment

Shock and Vibration, Volume 2018, Issue 1, 2018., 2018
A fully coupled nonlinear three‐dimensional (3D) hydroelastic method is developed to investigate vibrational responses of a large ship with a pronounced bow flare subjected to high seas. This numerical model consists of a 3D boundary element method, 1D Euler‐Bernoulli beam model, and a 2D generalized Wagner model.
Haicheng Yu, Huilong Ren, Yingbo Xu, Tiange Li, Juan C. G. Prada   +4 more
wiley   +1 more source

Investigation of Seakeeping Performance of Trawler by the Influence of the Principal Particulars of Ships in the Bering Sea

한국해양공학회지
Investigating ship motion under real conditions is vital for evaluating the seakeeping performance, particularly in the design process stage. This study examined the influence of the principal particulars of a trawler on its seakeeping performance.
Thi Thanh Diep Nguyen, Hoang Thien Vu, Aeri Cho, Hyeon Kyu Yoon   +3 more
doaj   +1 more source

Model test and numerical simulation of OC3 spar type floating offshore wind turbine

International Journal of Naval Architecture and Ocean Engineering, 2019
Nowadays, the study on Floating Offshore Wind Turbines (FOWTs) is being performed globally. Dozens of numerical simulation tools have been developed for designing FOWTs and simulating their performances in combined wave and wind environments.
Hyeon-Jeong Ahn, Hyunkyoung Shin
doaj   +1 more source

Methodology for Early-Stage Seakeeping Evaluation of Catamarans Using Geometric Parameter Variation

Journal of Marine Science and Engineering
The determination of optimal geometric characteristics of a catamaran that minimize vessel motion responses under prescribed design and operational conditions remains insufficiently addressed in existing engineering practice.
Evgenii Iamshchikov, Jolanta Janutenienė, Lukas Norkevicius, Vasilij Djackov   +3 more
doaj   +1 more source

Roll Motion Analysis on Unmanned Surface Vehicle with Remote Controlled Weapon Station Models to Combat Piracy in Surabaya West Access Channel

Kapal, 2021
The dense shipping activity in the Surabaya West Access Channel (SWAC) is accompanied by a high rate of piracy which had 13 cases during 2013–2018. An Unmanned Surface Vehicle (USV) with Remote Controlled Weapon Station (RCWS) was created to overcome ...
Natasya Habibah, Kevin Rizqul Habib, Gianiti Claresta, Hadi Mulki Siregar   +3 more
doaj   +1 more source