Results 51 to 60 of about 5,660 (193)

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

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

CFD Prediction of Ship Seakeeping and Slamming Behaviors of a Trimaran in Oblique Regular Waves

Journal of Marine Science and Engineering, 2021
The main hull encounters waves at first and causes waves to break, when trimarans are subject to the slamming in head waves. At this moment, emergence phenomena of side hulls will not occur. Thus, the slamming study of trimarans in oblique waves presents
Xiyu Liao, Zhanyang Chen, Hongbin Gui, Mengchao Du   +3 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

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

Comparative Study on Added Resistance and Seakeeping Performance of X-Bow and Wave-Piercing Monohull in Regular Head Waves

Journal of Marine Science and Engineering, 2022
Bow shape has been recognized as an important factor influencing the seakeeping performance and added resistance of ships. This paper presents a numerical comparative study on added resistance and seakeeping of model ships with ‘X-bow’ and a wave ...
Shuling Chen, Beilei Zou, Changzhi Han, Shiqiang Yan   +3 more
doaj   +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

Effects of Forward Speed and Wave Height on the Seakeeping Performance of a Small Fishing Vessel

Journal of Marine Science and Engineering, 2022
The effects of wave height and forward speed on the seakeeping performance of a small fishing vessel in irregular waves are evaluated using computational fluid dynamics (CFD).
Namkyun Im, Sangmin Lee
doaj   +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

Automatic waterline registration of a ship model in waves [PDF]

, 2013
C
Delefortrie, Guillaume, Geerts, Stefan, Tello Ruiz, Manasés, Vantorre, Marc   +3 more
core   +1 more source