A Mobile-beacon Based Iterative Localization Scheme in Underwater Acoustic Sensor Networks
Zhigang Jin, Tianjin University
Yishan Su, Tianjin University
Lei Guo, Tianjin University
Xiaomei Fu, Tianjin University
Yun Li, Guilin University of Aerospace Technology

Keywords: underwater acoustic sensor network; node localization; mobile beacon; confidence value

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Barrier Lyapunov Function-based Backstepping Control for ACV Safety Trajectory Tracking
Lijing Dong, Department of Automation, Harbin Engineering Department of Automation, Harbin Engineering University
Mingyu Fu, Department of Automation, Harbin Engineering Department of Automation, Harbin Engineering University
Yujie Xu, Department of Automation, Harbin Engineering Department of Automation, Harbin Engineering University
Chenglong Wang, Department of Automation, Harbin Engineering Department of Automation, Harbin Engineering University

Keywords: ACV; trajectory tracking; disturbance observer; barrier Lyapunov function; command filter.

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Buried Seafloor Pipeline Crossing a Fault
Vul Thang, University of New Orleans
Peter Marshall, MHP Systems Engineering
David Hui, University of New Orleans

Keywords: pipeline, composite pipes, sandwich pipes, finite element analysis, buried pipeline, steel-polymer-steel, pipe ovalization

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Fast Estimation of Underwater Acoustic Multipath Channel Based on LFM Signal
Xuan Liu, Tianjin University
Yishan Su, Tianjin University
Zhigang Jin, Tianjin University
Xiaomei Fu, Tianjin University

Keywords: underwater acoustic communication; multipath delay; channel estimation; LFM

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Impact of Thruster Dynamics on the Feasibility of ROV Station Keeping in Waves
Kyle Walker, The University of Edinburgh
Aristides Kiprakis, The University of Edinburgh
Adam Stokes, The University of Edinburgh
Francesco Giorgio-Serchi, The University of Edinburgh

Keywords: station keeping; PID; ROV; underwater robotics; shallow water; thruster dynamics.

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Learning to Detect Subsea Pipelines with Deep Segmentation Network and Self-Supervision
Vibhav Bharti, Heriot Watt University
David Lane, Heriot Watt University
Sen Wang, Heriot Watt University

Keywords: Offshore oil & gas; AUV; pipeline segmentaiton; deep learning

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NUMERICAL ANALYSIS OF A CURVED FLOATING BRIDGE
Chungkuk Jin, Texas A&M University
Do-Soo Kwon, Texas A&M University
Woo Chul Chung, Texas A&M University
MooHyun Kim, Texas A&M University
Weoncheol Koo, Inha University

Keywords: Floating bridge; elastic dynamic response; coupled dynamics; pontoon; wave/wind excitation; resonance; second-order effect

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Numerical analysis and experimental verification of the mechanical response of offshore platform tubular members subjected to lateral load
Xiaoming Cao, Wuhan Second Ship Design and Research Institute
Zhao Li, Wuhan Second Ship Design and Research Institute
Jingxi Liu, Huazhong University of Science and Technology

Keywords: numerical analysis;offshore plateform;tubular member; lateral load

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RFID Integrated Ropes and Nettings
Yuhua Wang, Shandong Ocean Pioneer New Materials Technology Co., Ltd
Chiate Chou, Shandong Ocean Pioneer New Materials Technology Co., Ltd
Suzhen Lyu, Shandong Ocean Pioneer New Materials Technology Co., Ltd

Keywords: RFID; Rope; Netting; Smart System; Distant Communication; Management System

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Semisubmersible Offshore Structure in an Extreme Wave Domain with Itinerant Ice Pieces
Hasanat Zaman, National Research Council Canada
Ayhan Akinturk, National Research Council Canada

Keywords: Extreme waves, ice pieces, semisubmersible offshore structure, ice loads on the topside, results comparisons.

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The Mechanics of a Bent Rope
John Flory, Tension Technology International

Keywords: rope, bend,mechanics, fatigue, failure

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Underwater Noise Reduction of Offshore Wind Turbines Through Vibration Isolation
Zhigao Dang, Northwestern Polytechnical University
Zhaoyong Mao, Northwestern Polytechnical University
Baowei Song, Northwestern Polytechnical University

Keywords: offshore wind turbine; vibration isolation; noise reduction; transfer coefficient; underwater noise

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