Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University >

2023 , Vol. 57 >Issue 8: 963 - 971

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2022.089

Naval Architecture, Ocean and Civil Engineering

A CNN-LSTM Ship Motion Extreme Value Prediction Model

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  • 1. State Key Laboratory of Ocean Engineering
    2. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received date: 2022-03-31

  Revised date: 2022-05-27

  Accepted date: 2022-07-27

  Online published: 2022-10-27

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Abstract

Aimed at the short-term extreme value prediction of ship motion, a sliding window method based on motion spectrum information is proposed to extract feature data, based on which, a series prediction model of convolutional neural networks (CNN) and long short-term memory (LSTM) is built. The CNN module aims at the local correlation characteristics of the input data, and the LSTM module aims at the time dimension characteristics of the data. The simulation test results of S175 ship show that the model has a good prediction effect on the motion extremum information in the next 1 and 2 cycles, and the evaluation indexes are significantly better than those of LSTM and gate recurrent unit (GRU) models, which has an important application value.

Key words： local extremum; short-term prediction; convolutional neural network (CNN); long short-term memory (LSTM) networks

Cite this article

ZHAN Ke, ZHU Renchuan . A CNN-LSTM Ship Motion Extreme Value Prediction Model[J]. Journal of Shanghai Jiaotong University, 2023 , 57(8) : 963 -971 . DOI: 10.16183/j.cnki.jsjtu.2022.089

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