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Classifying bow entry events of wave piercing catamarans in random waves using unsupervised and supervised techniques


Shabani, B and Lavroff, J and Holloway, DS and Penev, S and Dessi, D and Thomas, G, Classifying bow entry events of wave piercing catamarans in random waves using unsupervised and supervised techniques, Proceedings of the International Conference on Marine Industry 4.0, 5 November 2019, Rotterdam, The Netherlands, pp. 39-54. ISBN 978-1-911649-00-7 (2019) [Refereed Conference Paper]

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An onboard monitoring system can measure features such as stress cycles counts and provide warnings due to slamming. Considering current technology trends there is the opportunity of incorporating machine learning methods into monitoring systems. A hull monitoring system has been developed and installed on a 111 m wave piercing catamaran (Hull 091) to remotely monitor the ship kinematics and hull structural responses. Parallel to that, an existing dataset of a geometrically similar vessel (Hull 061) was analysed using unsupervised and supervised learning models; these were found to be beneficial for the classification of bow entry events according to the kinematic parameters. A comparison of different algorithms including linear support vector machines, na´ve Bayes and decision tree for the bow entry classification were conducted. In addition, using empirical probability distributions, the likelihood of wet-deck slamming was estimated given vertical bow acceleration thresholds.

Item Details

Item Type:Refereed Conference Paper
Keywords:remote monitoring, catamarans, machine learning, slamming
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ship and platform structures (incl. maritime hydrodynamics)
Objective Division:Transport
Objective Group:Water transport
Objective Field:Domestic passenger water transport (e.g. ferries)
UTAS Author:Shabani, B (Dr Babak Shabani)
UTAS Author:Lavroff, J (Dr Jason Ali-Lavroff)
UTAS Author:Holloway, DS (Associate Professor Damien Holloway)
ID Code:135985
Year Published:2019
Deposited By:Engineering
Deposited On:2019-11-25
Last Modified:2020-03-17

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