Test System Development and Experimental Study on the Fatigue of a Full-Scale Steel Catenary Riser

被引:5
作者
Yu, Jianxing [1 ,2 ,3 ]
Wang, Fucheng [1 ,2 ]
Yu, Yang [1 ,2 ]
Liu, Xin [1 ,2 ]
Liu, Pengfei [1 ,2 ]
Su, Yefan [1 ,2 ]
机构
[1] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Tianjin Key Lab Port & Ocean Engn, Tianjin 300072, Peoples R China
[3] Beibu Gulf Univ, Coll Mech & Marine Engn, Qinzhou 535011, Peoples R China
基金
中国国家自然科学基金;
关键词
full-scale riser; fatigue damage; test system; steel catenary risers; deep-water; RESIDUAL-STRESSES; BEHAVIOR; GEOMETRY;
D O I
10.3390/jmse10091325
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
This paper presents a full-scale deep-water steel catenary riser fatigue test system. The proposed system can carry out fatigue tests on steel catenary risers, hoses, and subsea pipelines up to 21 m in length, ranging from 8 to 24 inches in diameter. The test system was realized by mechanical loading with loading control systems, and could carry out axial tension and compression, bending moment, torsion, and internal pressure to simulate all load types on deep-water steel catenary risers or subsea pipelines. The counterforce was sustained by a counterforce frame. Through mechanical simulation analysis, the authors determined the size of the counterforce frame and designed the connection form of the counterforce frame and loading system. According to the required loading capacity, the appropriate cylinder thickness and diameter were obtained through calculation. After the design and construction of the test system, the authors designed a fatigue test to confirm the loading capacity and accuracy of the test system. The authors performed full-scale testing to assess the fatigue performance of pipe-to-pipe mainline 5G girth welds fabricated to BS 7608. This test was designed according to the stress level of pipelines in the Lingshui 17-2 gas field, and the test results were compared with the calculation results of the S-N curve.
引用
收藏
页数:17
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