深海系泊合成纤维缆绳非线性行为的试验

doi:10.19423/j.cnki.31-1561/u.2024.222

船舶 ›› 2025, Vol. 36 ›› Issue (04): 122-133.DOI: 10.19423/j.cnki.31-1561/u.2024.222

深海系泊合成纤维缆绳非线性行为的试验

张贺¹, 曾骥^2,*, 焦廷玉¹, 金博文¹, 周家德³, 李航宇³

1.上海海事大学商船学院上海 201306;
2.上海海事大学海洋科学与工程学院上海 201306;
3.浙江四兄绳业有限公司台州 317000

收稿日期:2024-12-10 修回日期:2025-02-07 出版日期:2025-08-25 发布日期:2025-09-04
通讯作者: 曾骥（1976-）,男,博士,教授/博士生导师。研究方向：船舶与海洋结构物和豪华邮轮技术。焦廷玉（2001-）,女,硕士研究生。研究方向：船舶与海洋结构物和海洋平台设计。金博文（1990-）,男,博士研究生。研究方向：船舶与海洋结构物设计与制造。周家德（1960-）,男,博士。研究方向：纤维科学、复合材料及涂层。李航宇（1990-）,男,本科,工程师。研究方向：海洋工程高强度纤维缆绳。
作者简介:张贺（1994-）,女,博士研究生。研究方向：纤维缆绳力学性能及船舶与海洋结构物系泊。
基金资助:
国家部委重点项目（Z20248129）

Experiments on Nonlinear Behavior of Deep-Sea Moored Synthetic Fiber Ropes

ZHANG He¹, ZENG Ji^2,*, JIAO Tingyu¹, JIN Bowen¹, ZHOU Jiade³, LI Hangyu³

1. Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China;
2. College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China;
3. Zhejiang Four Brothers Rope Co., Ltd., Taizhou 317000, China

Received:2024-12-10 Revised:2025-02-07 Online:2025-08-25 Published:2025-09-04

摘要/Abstract

摘要： 缆绳是船舶和海洋浮式结构物系泊的关键部件,需承受周期性变化的轴向载荷。为研究深海系泊聚酯绳的拉伸性能和刚度特性,该文将缆绳全生命周期划分为预加载、初安装、老化这3个阶段。首先研究了缆绳静态载荷作用下的拉伸特性,定量分析了各阶段缆绳的应变和可逆伸长率,并对比聚酯缆绳和尼龙缆绳的力学性能差异;其次,设计不同张力作用下的蠕变系数求解试验,建立了考虑绳索蠕变系数的准静态刚度经验方程。试验表明：静置后的缆绳仍存在可逆伸长,缆绳磨合越充分,其固有形变越小,结构越稳定;同时,缆绳的静态刚度随着加载时间增加和力的增大而增大,但最终会趋于定值。聚酯缆绳的刚度比尼龙绳大,形变量小,结构更加稳定,更适用于深海系泊。该文的研究成果有助于深入分析缆绳全周期刚度特性的演变,为深海绷紧式系泊系统的合理设计提供重要参考。

关键词: 合成纤维缆绳, 深海系泊, 静态刚度, 蠕变系数, 循环载荷

Abstract: Ropes are critical components for mooring ships and offshore floating structures under periodic axial loads. To investigate the tensile properties and stiffness characteristics of deep-sea mooring polyester ropes, they are categorized into three stages: preloading, initial installation, and aging. Initially, the tensile properties of the ropes under static loads are examined, quantifying strain and reversible elongation rates at each stage and comparing mechanical properties of polyester ropes with those of nylon ropes. Subsequently, creep coefficient solution tests under varying tensions are designed, establishing a quasi-static stiffness empirical equation with consideration of the rope creep coefficients. Experiments have shown that the mooring ropes still undergo reversible elongation after unloading, and sufficient break-in period of the ropes can reduce their inherent deformation and increase their structural stability. Static stiffness of the ropes increases with loading time and force until it reaches a constant value. Polyester ropes have greater stiffness, smaller deformation and more stable structure than nylon ropes, making them more suitable for deep-sea mooring. The findings enable comprehensive analysis of rope stiffness evolution throughout its service life, thereby offering references for reasonable design of deep-sea taut-line mooring systems.

Key words: synthetic fiber rope, deep sea mooring, static stiffness, creep coefficient, cyclic load

中图分类号:

U661.7

张贺, 曾骥, 焦廷玉, 金博文, 周家德, 李航宇. 深海系泊合成纤维缆绳非线性行为的试验[J]. 船舶, 2025, 36(04): 122-133.

ZHANG He, ZENG Ji, JIAO Tingyu, JIN Bowen, ZHOU Jiade, LI Hangyu. Experiments on Nonlinear Behavior of Deep-Sea Moored Synthetic Fiber Ropes[J]. Ship & Boat, 2025, 36(04): 122-133.

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深海系泊合成纤维缆绳非线性行为的试验

Experiments on Nonlinear Behavior of Deep-Sea Moored Synthetic Fiber Ropes

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