Collision prevention of ship towing operation under environmental disturbance

Journal article (2022)

Authors

Lei Zhang Wuhan University of Technology, Hubei Key Laboratory of Inland Shipping Technology
Zhe Du Transport Engineering and Logistics - Mechanical, Maritime and Materials Engineering
Osiris A.Valdez Banda Aalto University
F.M.B. Goerlandt Dalhousie University
Lei Du Aalto University, Wuhan University of Technology
Xiaobin Li Wuhan University of Technology
Research Group
Transport Engineering and Logistics (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2022 Lei Zhang, Zhe Du, Osiris A. Valdez Banda, F.M.B. Goerlandt, Lei Du, Xiaobin Li
DOI: https://doi.org/10.1016/j.oceaneng.2022.112870
Trajectory control Collision prevention Maritime safety Environmental disturbance Towing operation
More Info
expand_more

Published Date

2022

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Mechanical, Maritime and Materials Engineering

Department

Marine and Transport Technology

Research Group

Transport Engineering and Logistics

Abstract

Towing operations are highly reliant on the experience of the towing operators. Safety concerns arise when towing operations are subjected to environmental disturbances and dynamic traffic conditions. However, a systematic framework and approaches to enhance the safety and automation of towing operations remain lacking. This work proposes a framework of collision prevention of ship towing operations under environmental disturbance in near port waters. The focus is to prevent internal collisions between tug and assisted ship and provide early warning of possible collisions with other surrounding ships. A cooperative multi-agent control strategy is employed to specify the direction and magnitude of the towing force of the two tugs in real-time. Therefore, in the presence of environmental disturbance, the assisted ship can sail along the planned trajectory, and the acceptable safe geometric distance between each ship pair in the towing system is guaranteed. Further, a COLREGs-compliant collision alert system is designed to promptly remind the towing operators of a collision hazard with nearby ships, and different alert levels indicate different action obligations of towing operators. This proposed framework and developed methods are applied to a tandem towing system consisting of two tugs and one assisted ship to test its feasibility.