基于底质力时历计算的沉船打捞离底过程动力特性分析及系泊系统优化

doi:10.16183/j.cnki.jsjtu.2023.S1.16

上海交通大学学报 ›› 2023, Vol. 57 ›› Issue (S1): 1-12.doi: 10.16183/j.cnki.jsjtu.2023.S1.16

• • 下一篇

基于底质力时历计算的沉船打捞离底过程动力特性分析及系泊系统优化

辛尚哲¹, 王磊¹(), 范锦宇¹, 周东荣², 陈世海², 朱小东²

1.上海交通大学船舶海洋与建筑工程学院,上海 200240
2.交通运输部上海打捞局, 上海 200090

收稿日期:2023-05-14 修回日期:2023-06-14 接受日期:2023-07-18 出版日期:2023-10-27 发布日期:2023-11-10
通讯作者: 王磊 E-mail:wanglei@sjtu.edu.cn.
作者简介:辛尚哲(1997-),博士生,从事浮体水动力性能研究.
基金资助:
上海市科技创新行动计划(21DZ1201106)

Dynamic Characteristics Analysis and Mooring System Optimization of Wreck Salvage in Off-Bottom Stage Based on Seabed Resistance Force Time History

XIN Shangzhe¹, WANG Lei¹(), FAN Jinyu¹, ZHOU Dongrong², CHEN Shihai², ZHU Xiaodong²

1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2. Shanghai Salvage of the Ministry of Transportation, Shanghai 200090, China

Received:2023-05-14 Revised:2023-06-14 Accepted:2023-07-18 Online:2023-10-27 Published:2023-11-10
Contact: WANG Lei E-mail:wanglei@sjtu.edu.cn.

摘要/Abstract

摘要：

提出了一种基于精确底质力时历的沉船打捞系统动力特性分析方法.通过对一个典型案例的模拟,初步阐明了离底提升阶段母船和系泊缆、提升缆之间复杂的相互作用模式,发现了在提升阶段母船运动,特别是纵荡运动出现了显著的异常增大.为了更好地控制母船在打捞过程中的运动,还对打捞系统的系泊布置进行了优化,得出了进行提升时运动控制效果更好、系泊张力更小的系泊缆布置构型.

关键词: 沉船打捞, 液土耦合, 时域模拟, 耦合系统

Abstract:

In this paper, a method for analyzing the dynamic characteristics of the sunken ship salvage system based on the accurate time history of the seabed resistance force is proposed. The simulation of a typical case preliminarily clarifies the complex interaction mode between the mother ship (a barge), the mooring line, and the lifting line in the lifting stage. It is found that the motion of the mother ship, especially the surge motion, has significantly increased in this stage. In order to better control the motion of the mother ship in the salvage process, the mooring arrangement of the salvage system is also optimized in this paper, and the mooring line arrangement configuration with better motion control effect is obtained.

Key words: wreck salvage, water-soil interaction, time-domain simulation, coupling system

中图分类号:

P752

辛尚哲, 王磊, 范锦宇, 周东荣, 陈世海, 朱小东. 基于底质力时历计算的沉船打捞离底过程动力特性分析及系泊系统优化[J]. 上海交通大学学报, 2023, 57(S1): 1-12.

XIN Shangzhe, WANG Lei, FAN Jinyu, ZHOU Dongrong, CHEN Shihai, ZHU Xiaodong. Dynamic Characteristics Analysis and Mooring System Optimization of Wreck Salvage in Off-Bottom Stage Based on Seabed Resistance Force Time History[J]. Journal of Shanghai Jiao Tong University, 2023, 57(S1): 1-12.

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参考文献 19

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参数	驳船	沉船
长度/m	120	46
宽度/m	34	17
高度/m	9	6.67
初始吃水/m	3.75	-
水线面面积/m²	3 230.57	-
质量/t	6 000	9 500
水下质量/t	-	4 151.67

参数	系泊缆	提升缆
长度/m	800	-
数量	8	20
质量/(kg·m^-1)	273.95	26
刚度/GN	1.454	0.246
直径/m	0.12	0.078
最小断裂载荷/MN	6.786	3.5

序号	厚度/m	密度/(t·m^-3)	泊松比	孔隙比	S_a/%	φ/(°)	C_y/kPa	C_f	C_p/(cm·s^-1)
①	1.04	1.949	0.25	0.743	93	30	7	0.577	5.56×10^-7
④	17.85	1.724	0.42	1.364	98	11.5	12	0.203	1.58×10^-5
⑤1	8.4	1.765	0.42	1.225	96	13	17	0.231	8.79×10^-6
⑤3	22.71	1.898	0.35	0.894	96	18	20	0.325	1.56×10^-6

参数	起始值	极值	终末值
驳船平均吃水/m	3.76	5.13	5.01
提升缆长度/m	25.24	17.19	17.31
沉船垂直位置/m	-23.24	-16.66	-16.66
总提升张力/kN	0	44 345.18	40 686.30

基于底质力时历计算的沉船打捞离底过程动力特性分析及系泊系统优化

Dynamic Characteristics Analysis and Mooring System Optimization of Wreck Salvage in Off-Bottom Stage Based on Seabed Resistance Force Time History

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