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Sueng-Won Jeong, Byoung-Woo Yum, Dong-Woo Ryu, Hong-Jin Lee and Byeongju Jung
Urban cave-ins may result from a sudden change in local hydrological, hydrogeological and anthropogenic conditions. Monitoring and predicting urban sinkholes is not straightforward, and solving the problem of urban cave-ins involves the incorporation of ...
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Yi Zeng, Chaopeng Chen, Wei Quan, Shuangpeng Xie, Fanggang Shi, Zitao Ma and Mingliang Wu
Existing calibration methods for contact parameters of soil discrete elements are primarily based on a single physical property of soil (e.g., natural accumulation angle and shear characteristics). To solve this limitation, a calibration method based on ...
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Simon Thomas, Marianna Giassi, Mikael Eriksson, Malin Göteman, Jan Isberg, Edward Ransley, Martyn Hann and Jens Engström
This paper introduces a machine learning based control strategy for energy converter arrays designed to work under realistic conditions where the optimal control parameter can not be obtained analytically. The control strategy neither relies on a mathema...
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Xuemin Song, Weiqin Liu and Guowei Zhang
Floating structures plays an important role in extending and developing ocean resources, and their response evaluation is a hot topic of global important research due to the large dimensions. With characteristics including small depth and large horizonta...
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Chunyu Guo, Chengsen Zhang, Chunhui Wang and Chao Wang
When the icebreaker sails in the polar region, it adopts continuous and ramming icebreaking operations. When the ice condition exceeds the design working condition, it uses the ramming icebreaking method to advance. The nonlinear icebreaking process and ...
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Yang Yu, Shengbo Xu, Jianxing Yu, Lixin Xu, Xin Liu and Pengfei Liu
This study proposed a novel experimental platform to conduct dynamic loading tests of a truncated model steel catenary riser (SCR) within the touchdown zone (TDZ). The facilities of the platform, including a soil tank, a loading system, and a soil stirri...
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Yao Meng, Xianku Zhang, Guoqing Zhang, Xiufeng Zhang and Yating Duan
In order to establish a sparse and accurate ship motion prediction model, a novel Bayesian probability prediction model based on relevance vector machine (RVM) was proposed for nonparametric modeling. The sparsity, effectiveness, and generalization of RV...
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Shenyu Xuan, Chengsheng Zhan, Zuyuan Liu, Qiaosheng Zhao and Wei Guo
In level ice, the maneuvering motion of icebreakers has a major influence on the global ice loads of the hull. This study researched the influences of the drift angle and turning radius on the ice loads of the icebreaker Xue Long through a partial numeri...
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Yang Yang, Ling Zhou, Hongtao Zhou, Wanning Lv, Jian Wang, Weidong Shi and Zhaoming He
Marine centrifugal pumps are mostly used on board ship, for transferring liquid from one point to another. Based on the combination of orthogonal testing and numerical simulation, this paper optimizes the structure of a drainage trough for a typical low-...
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Noriyuki Sasaki, S. Kuribayashi, M. Fukazawa and Mehmet Atlar
This paper presents an investigation on the scale effects associated with the powering performance of a Gate Rudder System (GRS) which was recently introduced as a novel energy-saving propulsion and maneuvring device. This new system was applied for the ...
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Jianxun Kuang, Guodong Chen, Zhoulong Yuan, Xiajun Qi, Qianhao Yu and Zhen Liu
The rapid development of offshore electricity grid construction has led to a great demand for submarine cable deployment. In this study, a numerical model is established based on the commercial software ANSYS-AQWA to investigate the dynamic interactions ...
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Lei Du, Zhuang Lin, Yi Jiang, Ping Li and Yue Dong
This article discusses the scale effects on a planing boat, utilizing the computational fluid dynamics method. The simulation is compared with a tank test for verification and validation. The planing boat sails use both aerodynamics and hydrodynamics. St...
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Yoo-Chul Kim, Kwang-Soo Kim, Seongmo Yeon, Young-Yeon Lee, Gun-Do Kim and Myoungsoo Kim
This study proposes machine learning-based prediction models to estimate hull form performance. The developed models can predict the residuary resistance coefficient (CR" role="presentation">????CR
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), wake fraction (wTM" role="presentation">??????wTM...
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Ivan Catipovic, Marta Pedi?ic-Buca and Jo?ko Parunov
An innovative tourist submarine was studied by scale-model tests in a towing tank to determine its steering capabilities and detect motion instabilities during usual manoeuvres and emergency rising. Motion instabilities are caused by the combination of t...
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Yukui Tian, Dongbao Yang, Xuhao Gang, Chaoge Yu, Shunying Ji and Qianjin Yue
The determination of ice loads on polar vessels and offshore structures is important for ice-resistant design, safe operation, and management of structural integrity in ice-infested waters. Physical model testing carried out in an ice tank/basin is usual...
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Weixin Zhang, Ye Li, Yulei Liao, Qi Jia and Kaiwen Pan
The wave-driven catamaran is a small surface vehicle driven by ocean waves. It consists of a hull and hydrofoils, and has a multi-body dynamic structure. The process of moving from static state to autonomous navigation driven by ocean waves is called ?se...
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Kunyu Han, Xide Cheng, Zuyuan Liu, Chenran Huang, Haichao Chang, Jianxi Yao and Kangli Tan
Maneuverability, which is closely related to operational performance and safety, is one of the important hydrodynamic properties of an underwater vehicle (UV), and its accurate prediction is essential for preliminary design. The purpose of this study is ...
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Nikolaos I. Xiros, Vasileios Tzelepis and Eleftherios K. Loghis
A simulation model for a prismatic hard-chine planing hull watercraft (V-shaped keel with constant deadrise) with propulsion based on a 3-phase induction motor connected directly to surface-piercing propeller (SPP) and outfitted with a motor rotational s...
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Zhijian Liu, Hao Li, Xinyu Zhang, Guangya Jin and Kewei Cheng
The determinations of heat collection rate and heat loss coefficient are crucial for the evaluation of in service water-in-glass evacuated tube solar water heaters. However, the direct determination requires complex detection devices and a series of stan...
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Haitong Xu and C. Guedes Soares
A data-driven method, the truncated LS-SVM, is proposed for estimating the nondimensional hydrodynamic coefficients of a nonlinear manoeuvring model. Experimental data collected in a shallow water towing tank are utilized in this study. To assess the acc...
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