A numerical investigation on quasi-static configuration and nonlinear dynamic response characteristics of marine towing cable

被引：19

作者：

Guo, Li ^{[1
,2
]}

Yuan, Yuchao ^{[1
,2
]}

Tang, Wenyong ^{[1
,2
]}

Xue, Hongxiang ^{[1
,2
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China

[2] Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai 200240, Peoples R China

来源：

OCEAN ENGINEERING | 2021年 / 240卷

基金：

中国国家自然科学基金;

关键词：

Towing cable; Numerical investigation; Quasi-static configuration; Nonlinear dynamic analysis; Response characteristics; CATENARY RISER; SIMULATION;

D O I：

10.1016/j.oceaneng.2021.110007

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

The towed seismic cable system is the main equipment of marine seismic exploration, which is a widely-used technique in oil and gas exploration. The towing cable connects the ship and the towed body, transmitting electricity and signals. The vibration of cable induced by the vortex shedding can affect the signal transmission and thus the exploration efficiency. This paper proposes a time-domain nonlinear numerical model to investigate the cable's dynamic response for deeper understanding the mechanism. A large amount of towing cases for a realscale towing cable are designed. With the fundamental study on the quasi-static configuration, natural frequency and encountered speed of the cable, its nonlinear dynamic response characteristics are analyzed systematically. The overall dynamic response presents a mixture pattern of traveling wave and standing wave, and multi-modal participation can be readily captured. Besides, the variable cable weights, cable lengths, towing speeds and towed body weights all exert a significant impact on the Root Mean Square (RMS) displacement and excited frequency of the cable's vibration. Associated with VIV mechanism analysis, the response characteristics with different structural physical parameters and working condition parameters are explained reasonably.

引用

页数：28

共 26 条

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