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Using remote monitoring and machine learning to classify slam events of wave piercing catamarans

Shabani, B ORCID: 0000-0002-2910-962X, Ali-Lavroff, J ORCID: 0000-0001-5262-8666, Holloway, DS ORCID: 0000-0001-9537-2744, Penev, S, Dessi, D and Thomas, G 2021 , 'Using remote monitoring and machine learning to classify slam events of wave piercing catamarans' , International Journal of Maritime Engineering, vol. 163, no. A3 , A15-A30 , doi: 10.5750/ijme.v163iA3.797.

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Abstract

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 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 key kinematic parameters. A comparison of different algorithms including linear support vector machines, naïve 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 a vertical bow acceleration threshold of 1 in head seas, clustering the feature space with the approximate probabilities of 0.001, 0.030 and 0.25.

Item Type: Article
Authors/Creators:Shabani, B and Ali-Lavroff, J and Holloway, DS and Penev, S and Dessi, D and Thomas, G
Keywords: high-speed catamaran, machine learning, slamming
Journal or Publication Title: International Journal of Maritime Engineering
Publisher: Royal Institution of Naval Architects
ISSN: 1479-8751
DOI / ID Number: 10.5750/ijme.v163iA3.797
Copyright Information:

©2021: The Royal Institution of Naval Architects

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