基于实船冰区加速度监测的破冰颠震识别与分析

doi:10.19423/j.cnki.31-1561/u.2024.01.008

船舶 ›› 2024, Vol. 35 ›› Issue (01): 84-95.DOI: 10.19423/j.cnki.31-1561/u.2024.01.008

基于实船冰区加速度监测的破冰颠震识别与分析

马群¹, 李放^2,*, 崔濛³, 高处³, 周利², 丁仕风¹

1.江苏科技大学船舶与海洋工程学院镇江 212003;
2.上海交通大学船舶海洋与建筑工程学院上海 200240;
3.中国船舶及海洋工程设计研究院上海 200011

收稿日期:2023-12-06 修回日期:2024-01-10 出版日期:2024-02-25 发布日期:2024-03-01
通讯作者: 李放（1992-）,男,博士,副教授。研究方向：极地船舶冰载荷。
作者简介:马群（1999-）,男,硕士研究生。研究方向：船舶运动控制。崔濛（1990-）,男,硕士,高级工程师。研究方向：极地装备体系研究、极地装备总体设计。高处（1984-）,男,硕士,工程师。研究方向：船舶结构设计。周利（1983-）,男,博士,研究员。研究方向：极地船舶性能。丁仕风（1981-）,男,博士,高级工程师。研究方向：船舶抗冰设计。
基金资助:
国家重点研发计划（2022YFE010700）; 国家自然科学基金面上项目（52171259）; 工信部高技术船舶项目（[2021] 342）; 上海市科委项目; （23YF1419900、“22DZ1204403”）; 中船集团—上交前瞻基金（ZCJDQZ202307A01）

Identification and Analysis of Ship Bumping in Ice Based on Actual Ship Acceleration Monitoring

MA Qun¹, LI Fang^2,*, CUI Meng³, GAO Chu³, ZHOU Li², DING Shifeng¹

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;
3. Marine Design & Research Institute of China, Shanghai 200011, China

Received:2023-12-06 Revised:2024-01-10 Online:2024-02-25 Published:2024-03-01

摘要/Abstract

摘要： 船舶在冰区航行时,在海冰的碰撞作用下,船体会产生结构和振动响应,响应的幅度与海冰冰况、船舶航速、结构刚度、测量位置等因素具有很大的相关性。不同于局部结构振动,船体发生的全局性垂向运动和振动响应可统称为颠震,对于船载设备的功能具有较大影响,容易导致紧固件松动等各类问题。该文基于“雪龙2”号所搭载分布式加速度计在南极冰区航行中测得的数据开展了破冰颠震研究,根据时频分析结果,利用神经网络方法识别破冰颠震事件;通过频谱分析分离颠震信号,从而提取破冰颠震的加速度幅值、脉宽、发生频率等关键参数,形成破冰颠震识别与分析方法。在此基础上,分析典型场景下的破冰颠震数据,研究海冰环境、船舶航速、测量位置等因素对于船舶颠震各关键参数的影响,进而总结不同海冰环境下对船载设备承受颠震的能力要求,为极地船舶设备选型提供参考。

关键词: 冰区航行, 加速度测量, 破冰颠震, 时频分析, 神经网络

Abstract: When a ship navigates through ice areas, structural and vibration responses will be generated on the ship hull under the collision of sea ices. The magnitude of the response is highly correlated with the factors such as sea ice conditions, ship speed, structural stiffness, and measurement position. To be distinguished from the localized structural vibration, the global motion and vibration response of the ship can be referred to as ship bumping, which has a large impact on the functionality of the shipboard equipment, easily resulting in various issues such as lessening of the fastenings. The ship bumping in ice has been examined based on the data measured by the distributed accelerometers on board the icebreaker Xuelong II during the voyage in the Antarctic ice area. The events of ship bumping in ice are identified by the neural network method based on the time-frequency analysis. The ship bumping signals are separated by the frequency spectral analysis to extract the key parameters of the ship bumping in ice, such as the acceleration amplitude, pulse width, and the occurring frequency. The identification and analysis methods are finally established. On this basis, the data of ship bumping in ice of various typical scenarios are analyzed to investigate the influence of sea-ice environment, ship speed, and measurement position on the key parameters of the ship bumping. The requirements of the capability of shipboard equipment to withstand bumping under different sea-ice conditions are then summarized to provide references for the selection of polar ship equipment.

Key words: ice navigation, acceleration measurement, ship bumping in ice, time-frequency analysis, neural network

中图分类号:

马群, 李放, 崔濛, 高处, 周利, 丁仕风. 基于实船冰区加速度监测的破冰颠震识别与分析[J]. 船舶, 2024, 35(01): 84-95.

MA Qun, LI Fang, CUI Meng, GAO Chu, ZHOU Li, DING Shifeng. Identification and Analysis of Ship Bumping in Ice Based on Actual Ship Acceleration Monitoring[J]. Ship & Boat, 2024, 35(01): 84-95.

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基于实船冰区加速度监测的破冰颠震识别与分析

Identification and Analysis of Ship Bumping in Ice Based on Actual Ship Acceleration Monitoring

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