Results 51 to 60 of about 824 (150)

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

Flow Memory Effect on Open‐Frame Remotely Operated Vehicle Motion

Journal of Field Robotics, Volume 42, Issue 6, Page 2611-2638, September 2025.
ABSTRACT The flow memory effect is a kind of viscous force caused by acceleration between continuous phases and underwater vehicles and the development of the boundary layer near the interfacial surface. This paper establishes a 6‐degrees‐of‐freedom unsteady equation of motion describing the flow memory effect on viscous hydrodynamic loads.
Ruinan Guo, Yingfei Zan, Wenzhi Fu, Chenlei Cao, Duanfeng Han, Nan Sun   +5 more
wiley   +1 more source

Sensitivity Analysis Based on Polynomial Chaos Expansions and Its Application in Ship Uncertainty‐Based Design Optimization

Mathematical Problems in Engineering, Volume 2019, Issue 1, 2019., 2019
In order to truly reflect the ship performance under the influence of uncertainties, uncertainty‐based design optimization (UDO) for ships that fully considers various uncertainties in the early stage of design has gradually received more and more attention.
Xiao Wei, Haichao Chang, Baiwei Feng, Zuyuan Liu, Krzysztof Puszynski   +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

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

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

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

Drag Reduction and Performance Improvement of Hydraulic Torque Converters with Multiple Biological Characteristics

Applied Bionics and Biomechanics, Volume 2016, Issue 1, 2016., 2016
Fish‐like, dolphin‐like, and bionic nonsmooth surfaces were employed in a hydraulic torque converter to achieve drag reduction and performance improvement, which were aimed at reducing profile loss, impacting loss and friction loss, respectively. YJSW335, a twin turbine torque converter, was bionically designed delicately.
Liu Chunbao, Li Li, Lei Yulong, Liu Changsuo, Zhang Yubo, Nigel Zheng   +5 more
wiley   +1 more source