Ship & Boat ›› 2022, Vol. 33 ›› Issue (04): 1-14.DOI: 10.19423/j.cnki.31-1561/u.2022.04.001

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Ship Nonlinear Dynamic Analysis Method and Its Engineering Applications

TANG Yougang1, WANG Liyuan2, LIU Zheng1, LIU Liqin1, LI Yan1   

  1. 1. School of Civil Engineering, Tianjin University, Tianjin 300350, China;
    2. Institute of Marine Equipment Research, Jiangsu University of Science and Technology, Zhenjiang 212003, China
  • Received:2022-05-16 Revised:2022-06-22 Published:2023-03-17

船舶非线性动力学分析方法及工程应用

唐友刚1, 王丽元2, 刘峥1, 刘利琴1, 李焱1   

  1. 1. 天津大学 建筑工程学院 天津 300350;
    2. 江苏科技大学 海洋装备研究院 镇江 212003
  • 作者简介:唐友刚（1952-）,男,博士,教授。研究方向：船舶与海洋结构非线性动力学。王丽元（1986-）,女,博士,助理研究员。研究方向：船舶与海洋结构非线性动力学。刘峥（1994-）,男,硕士研究生。研究方向：船舶与海洋结构非线性动力学。刘利琴（1977-）,女,博士,教授。研究方向：船舶与海洋结构非线性动力学。李焱（1990-）,男,博士,副研究员。研究方向：船舶与海洋结构非线性动力学。
  • 基金资助:
    江苏省高等学校基础科学（自然科学）面上项目（21KJD580002）; 江苏省双创博士项目（JSSCBS20210995）

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Abstract: The motion and stability of the ship under the marine environment is a full nonlinear dynamic system. Considering the nonlinear characteristics of ocean environmental loads on the ship and the natural nonlinear response characteristics of the ship motion, there are extensive studies and a series of theoretical and application results. The research methods of the nonlinear motion response and stability of ships based on the theory of nonlinear dynamics are summarized, thus revealing the nonlinear dynamic characteristics of the whole process of the ship motion instability, large-scale motion response, and even capsizing. It mainly focuses on the nonlinear analysis methods and main conclusions of the parametric rolling and surf-riding/broaching in regular and irregular waves. The combination of the nonlinear dynamics method and the seakeeping theory in the current study provides a new approach and method for the study of the ship motion and stability.

Key words: ship nonlinear dynamics, second-generation stability, parametric rolling, surf-riding/broaching

摘要： 海洋环境作用下的船舶运动和稳性,是一个完整的非线性动力系统。在考虑海洋环境对船舶作用载荷的非线性和船舶运动固有的非线性响应特性方面,我国进行了大量研究工作,取得一系列创新的理论成果和应用成果。该文总结了基于非线性动力学理论开展船舶非线性运动响应和稳性的研究方法,揭示了船舶运动失稳、大幅运动响应直至倾覆全过程的非线性动力特性。重点介绍了规则波和不规则波中船舶参数横摇、骑浪/横甩等现象的非线性分析方法及主要研究结论。该文给出的非线性动力学方法与耐波性理论相结合的方法,为船舶运动和稳性研究提供了新的途径和方法。

关键词: 船舶非线性动力学, 二代稳性, 参数横摇, 骑浪/横甩

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