Multipoint Heave Motion Prediction Method for Ships Based on the PSO-TGCN Model  

作　　者：DING Shi-feng MA Qun ZHOU Li HAN Sen DONG Wen-bo 

机构地区：[1]School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China [2]School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《China Ocean Engineering》2023年第6期1022-1031,共10页中国海洋工程（英文版）

基　　金：financially supported by the National Key Research and Development Program of China (Grant No.2022YFE010700);the National Natural Science Foundation of China (Grant No.52171259);the High-Tech Ship Research Project of Ministry of Industry and Information Technology (Grant No.[2021]342);Foundation of State Key Laboratory of Ocean Engineering in Shanghai Jiao Tong University (Grant No.GKZD010086-2)。

摘　　要：During ship operations,frequent heave movements can pose significant challenges to the overall safety of the ship and completion of cargo loading.The existing heave compensation systems suffer from issues such as dead zones and control system time lags,which necessitate the development of reasonable prediction models for ship heave movements.In this paper,a novel model based on a time graph convolutional neural network algorithm and particle swarm optimization algorithm(PSO-TGCN)is proposed for the first time to predict the multipoint heave movements of ships under different sea conditions.To enhance the dataset's suitability for training and reduce interference,various filter algorithms are employed to optimize the dataset.The training process utilizes simulated heave data under different sea conditions and measured heave data from multiple points.The results show that the PSO-TGCN model predicts the ship swaying motion in different sea states after 2 s with 84.7%accuracy,while predicting the swaying motion in three different positions.By performing a comparative study,it was also found that the present method achieves better performance that other popular methods.This model can provide technical support for intelligent ship control,improve the control accuracy of intelligent ships,and promote the development of intelligent ships.

关 键 词：ship motion prediction time delay multipoint forecast time-graph convolutional neural network particle swarm optimization 

分 类 号：U661.33[交通运输工程—船舶及航道工程]