Coupled dynamics investigation of a tunnel immersion system under beam and oblique waves

被引：2
|
作者：
Song, Yue [1 ,2 ]
Sun, Zhenxiang [3 ]
Huang, Guoxing [3 ]
Chen, Nianzhong [1 ,2 ,4 ]
机构：
[1] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300350, Peoples R China
[2] Tianjin Univ, Sch Civil Engn, 135 Yaguan Rd, Tianjin 300350, Peoples R China
[3] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116023, Peoples R China
[4] Shanghai Jiao Tong Univ, Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai 200240, Peoples R China
来源：
OCEAN ENGINEERING | 2020年 / 217卷
基金：
中国国家自然科学基金;
关键词：
Coupled dynamics; Tunnel-pontoon system; Oblique waves; Immersion depth; 3D experiments;
D O I：
10.1016/j.oceaneng.2020.107892
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：
A 3D experimental investigation is conducted to simultaneously measure the motions of tunnel and pontoon of a tunnel immersion system under the action of beam and oblique regular waves. The importance of wave incident direction on coupled dynamics of the system (tunnel motion, pontoon motion, relative motion, suspension tensions and mooring tensions) is discussed in terms of various wave periods and immersion depths. It is concluded that the sensitivity of the system dynamics to the wave incident direction is strongly dependent on wave period and immersion depth. The wave heading angle plays a more important role in smaller immersion depth and when the wave period is close to certain natural periods or in relatively long wave regime. For the small immersion depth, the oblique wave excitations compared to the beam waves can incur higher tensile forces in the suspension lines and the mooring lines of the tunnel.
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页数：10
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