| 系泊链海水疲劳性能初步研究 |
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| 引用本文： | 邵云亮,李剑,张卫新,陶兴,陶良凤.系泊链海水疲劳性能初步研究[J].海洋工程,2019,37(5):127-132. |
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| 作者姓名： | 邵云亮 李剑 张卫新 陶兴 陶良凤 |
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| 作者单位： | 江苏亚星锚链股份有限公司，江苏 靖江 214533;
江苏省系泊链设计与应用技术重点实验室，江苏 靖江 214533,江苏亚星锚链股份有限公司，江苏 靖江 214533;
江苏省系泊链设计与应用技术重点实验室，江苏 靖江 214533,江苏亚星锚链股份有限公司，江苏 靖江 214533;
江苏省系泊链设计与应用技术重点实验室，江苏 靖江 214533,江苏亚星锚链股份有限公司，江苏 靖江 214533;
江苏省系泊链设计与应用技术重点实验室，江苏 靖江 214533,江苏亚星锚链股份有限公司，江苏 靖江 214533 |
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| 摘 要： | 通过试验研究了直径最大到187 mm的R4和R4S级系泊链在人工海水中的疲劳性能。根据疲劳试验得到了相应载荷振幅下的疲劳循环次数,并将结果和DNVGL OS-E301及API RP 2SK中的设计曲线进行了比较和分析。通过链环有限元计算,结合实际试验结果,验证了链环在拉伸载荷下的应力分布和断裂热点,为进一步分析系泊链疲劳失效机理和海洋平台系泊系统设计提供了有效的试验数据。
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| 关 键 词： | 海洋系泊链 腐蚀疲劳 循环次数 应力分布 疲劳曲线 断裂分析 |
Study on mooring chain fatigue performance in seawater |
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| SHAO Yunliang,LI Jian,ZHANG Weixin,TAO Xing and TAO Liangfeng.Study on mooring chain fatigue performance in seawater[J].Ocean Engineering,2019,37(5):127-132. |
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| Authors: | SHAO Yunliang LI Jian ZHANG Weixin TAO Xing and TAO Liangfeng |
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| Institution: | Jiangsu Asian Star Anchor Chain Co., Ltd., Jingjiang 214533, China;
Key Lab. of Mooring Chain Design and Application Technology, Jingjiang 214533, China,Jiangsu Asian Star Anchor Chain Co., Ltd., Jingjiang 214533, China;
Key Lab. of Mooring Chain Design and Application Technology, Jingjiang 214533, China,Jiangsu Asian Star Anchor Chain Co., Ltd., Jingjiang 214533, China;
Key Lab. of Mooring Chain Design and Application Technology, Jingjiang 214533, China,Jiangsu Asian Star Anchor Chain Co., Ltd., Jingjiang 214533, China;
Key Lab. of Mooring Chain Design and Application Technology, Jingjiang 214533, China and Jiangsu Asian Star Anchor Chain Co., Ltd., Jingjiang 214533, China |
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| Abstract: | Fatigue performance of grades R4 and R4S studless chains with diameter up to 187mm is studied by experiments in artificial sea water. Cyclic numbers under specified tension ranges are obtained. Fatigue curves are plotted and compared with the design curves indicated in DNVGL OS-E301 and API RP 2SK. In addition, FEA is carried out to verify the stress distribution and hot spot of fatigue cracking area under tension-tension load. This paper provides experimental data for design of mooring systems and suggestions for further analysis of mooring chain fatigue mechanism. |
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| Keywords: | offshore mooring chain corrosion fatigue cycles stress distribution fatigue curve fracture analysis |
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