水深截断系泊缆选型试验研究  

Experimental Research on the Lectotype of Truncated Mooring Lines

作　　者：苏一华[1] 杨建民[1] 肖龙飞[1] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200030

出　　处：《武汉理工大学学报》2009年第23期142-146,共5页Journal of Wuhan University of Technology

基　　金：国家"863"计划(2006AA09A107)

摘　　要：水深截断系泊缆替代全水深系泊缆,用于截断水深模型试验。目前的目标之一是设计出动力特性与全水深系泊缆相似的水深截断系泊缆,使得截断水深的模型试验结果尽可能准确的预报全水深平台系统的运动和载荷。以工作在1 500 m水深的Cell-Truss Spar II-B平台为例,对180°浪向上的3种水深截断系泊缆方案进行了模型试验研究。结果表明,增加直径和单位长度空气中质量而保持单位长度水中重量不变,可以在不改变系泊系统静力特性的基础上,增大水深截断系泊缆的波频动力响应和低频阻尼。添加重物的水深截断系泊缆虽然在形式上具有张紧的特点,但其波频动力响应并无明显改善,而且会诱发高频动力响应。The truncated mooring line is designed to replace full-depth mooring line and use in truncated water depth model test. At present one of the research objectives is to design the truncated mooring line with equivalent dynamic characteristics, so the model test results at truncated water depth can accurately predict responses and loads of the platform system at full-depth water depth as far as possible. Based on a Cell-Truss Spar II-B platform, 3 truncated mooring lines for 180° wave direction model tests are investigated through model tests. It is concluded that increasing the diameter and mass per unit length in air, and maintaining the same weight of unit length in water can increase the dynamic response and low-frequency damping of the truncated mooring line, with the static characteristics of the truncated mooring system unchanged. Although the shape is ＂taut＂, the dynamic response of the truncated mooring line with clump cannot be improved, and high-frequency response is induced.

关 键 词：深水 模型试验 系泊缆 截断 

分 类 号：U661[交通运输工程—船舶及航道工程]