Please wait a minute...
浙江大学学报(工学版)
J4  2013, Vol. 47 Issue (8): 1329-1337    DOI: 10.3785/j.issn.1008-973X.2013.08.002
土木工程     
不同海域Semi平台关键节点的疲劳可靠性分析
崔磊1,2, 何勇1, 金伟良1,2
1. 浙江大学 结构工程研究所,浙江 杭州 310058；2. 浙江大学 宁波理工学院,浙江 宁波 315100
Fatigue reliability analysis on key nodes of a deepwater semi-submersible platform in different sea areas
CUI Lei1,2, HE Yong1, JIN Wei-liang1,2
1. Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China| 2. Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China
 全文: PDF  HTML
摘要：

为了确保深水半潜式平台(Semi平台)的安全可靠运行,对不同海域深水半潜式平台关键节点的疲劳可靠性进行研究.根据中国南海12个深水海域的波浪统计特征,利用水动力软件WAMIT计算平台疲劳分析的波浪荷载,进行不同工况下平台的应力响应分析,确定平台疲劳关键节点.采用改进的子模型技术分析局部精细子模型的应力响应,运用几何应力外插法计算各疲劳关键节点的热点应力.结合南海12个深水海域海况应用S-N曲线法分析平台各关键节点的疲劳可靠性.结果表明,12个深水海域平台各关键节点的疲劳可靠性指标各不相同,可以满足设计要求,78号海域对平台关键节点的疲劳可靠性影响最大,227号海域影响最小.研究结果可以为深水半潜式平台在南海海域作业时的运行维护和安全评估提供参考.
Abstract:

 In order to insure the safety and reliable service of deepwater semi-submersible platform (Semi), present study focuses on the fatigue reliability on key nodes of Semi. According to waves scatter diagrams of 12 seaareas in South China Sea, wave loads for the fatigue analysis were calculated by WAMIT, and the stresses responses of Semi in different sea-states were analyzed to determine the fatigue key nodes. The sub-model technology was used for the stresses analysis of local refined models, and the hot spot stresses of key nodes were calculated by using the extrapolation of geometric stress. Based on the S-N curve approach, the fatigue reliability analysis on key nodes was investigated. The results show that the fatigue reliability indices of key nodes are different in 12 seaareas, and all can satisfy with service requirements. NO.78 seaarea has the major influence on fatigue reliability of Semi, and NO.227 seaarea has a minimal impact. The results can be used as a reference for the operating maintenance and safety assessment of Semi during service in South China Sea.
出版日期: 2013-08-01
:  P 751  
基金资助:

国家科技重大专项资助项目(2008ZX05026-002).
通讯作者: 何勇,男,讲师.     E-mail: heyong_ise@zju.edu.cn
作者简介: 崔磊(1982—),男,博士生,主要从事深海工程结构的疲劳与可靠性分析. E-mail: lcui@zju.edu.cn
服务　　
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章　　

引用本文:

崔磊, 何勇, 金伟良. 不同海域Semi平台关键节点的疲劳可靠性分析[J]. J4, 2013, 47(8): 1329-1337.

CUI Lei, HE Yong, JIN Wei-liang. Fatigue reliability analysis on key nodes of a deepwater semi-submersible platform in different sea areas. J4, 2013, 47(8): 1329-1337.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2013.08.002    或    http://www.zjujournals.com/eng/CN/Y2013/V47/I8/1329

［1］ KJERENGTROEN L, WIRSCHING P H. Structural reliability analysis ［J］. Journal of Structural Engineering, 1984, 110(7): 1495-1511.

［2］ SIDDIQUI N A, AHMAD S. Reliability analysis against progressive failure of TLP tethers in extreme tension［J］. Reliability Engineering & System Safety, 2000, 68(3): 195-205.

［3］ SIDDIQUI N A, AHMAD S. Fatigue and fracture reliability of TLP tethers under random loading ［J］. Marine Structures, 2001, 14(3): 331-352.

［4］ KHAN R A, SIDDIQUI N A, NAQVI S Q A, et al. Reliability analysis of TLP tethers under impulsive loading ［J］. Reliability Engineering & System Safety, 2006, 91(1): 73-83.

［5］ JIN W L. Reliability-based design for jacket platform under extreme loads ［J］. China Ocean Engineering, 1996, 10(2): 145-160.

［6］ JIN W L, HE, Y, GONG S F, et al. System reliability-based assessment on single point mooring jacket platform［C］∥ Proceedings of the 24th International Conference on Offshore Mechanics and Arctic Engineering. Halkidiki: American Society of Mechanical Engineers, 2005: 277-283.

［7］ 龚顺风,何勇,金伟良.海洋平台结构随机动力响应谱疲劳寿命可靠性分析［J］.浙江大学学报：工学版, 2007, 41(1): 12-17.

GONG Shun-feng, HE Yong, JIN Wei-liang. Fatigue life reliability analysis of stochastic dynamic response spectrum for offshore platform structures ［J］. Journal of Zhejiang University: Engineering Science, 2007, 41(1): 12-17.

［8］ 龚顺风,何勇,金伟良.单点系泊海洋导管架平台结构的疲劳寿命可靠性分析［J］.浙江大学学报：工学版,2007, 41(6): 995-999.

GONG Shun-feng, HE Yong, JIN Wei-liang. Fatigue life reliability analysis of single point mooring offshore jacket platform structures ［J］. Journal of Zhejiang University: Engineering Science, 2007, 41(6): 995-999.

［9］ 刘刚,郑云龙,赵德有,等.BINGO9000半潜式钻井平台疲劳强度分析［J］.船舶力学,2002, 6(24): 54-63.

LIU Gang, ZHENG Yun-long, ZHAO De-you, et al. Fatigue Strength analysis of BINGO 9000 semi-submersible drilling Rig ［J］. Journal of Ship Mechanics, 2002, 6(24): 54-63.

［10］ 张剑波.半潜式钻井船典型节点疲劳可靠性分析［J］.船舶工程,2006, 28(1): 36-40.

ZHANG Jian-bo. Fatigue reliability analysis of typical joints in a semi-submersible drilling ship ［J］. Ship Engineering, 2006, 28(1): 36-40.

［11］ 马网扣,王志青,张海彬.深水半潜式钻井平台节点疲劳寿命谱分析研究［J］.海洋工程,2008, 26(03): 18.

MAWang-kou, WANG Zhi-qing, ZHANGHai-bin. Study on spectrum-based fatigue life direct calculation for spots of deep-water semi-submerged drilling unit ［J］. The Ocean Engineering, 2008, 26(03): 18.

［12］ 谢文会,谢彬,王世圣.深水半潜式钻井平台典型节点谱疲劳分析［J］,中国海洋平台,2009, 24(5): 28-33.

XIE Wen-hui, XIE Bin, WANG Shi-sheng. Spectral-based fatigue analysis of typical joint of deepwater semi-submersible platform ［J］. China Offshore Platform, 2009, 24(5): 28-33.

［13］ 张朝阳,刘俊,白艳彬,等.基于谱分析法的深水半潜式平台疲劳强度分析［J］.海洋工程, 2012, 30(1): 53-59.

ZHANG Zhao-yang, LIU Jun, BAI Yan-bin, et al. Spectral-based fatigue analysis of a deepwater semi-submersible platform ［J］. The Ocean Engineering, 2012, 30(1): 53-59.

［14］ 叶谦,何勇,金伟良.半潜式平台结构整体可靠性分析方法［J］.海洋工程,2011, 29(3): 31-36.

YE Qian, HE Yong, JINWei-liang. System reliability analysis of semi-submersible platform ［J］. The Ocean Engineering, 2011, 29(3): 31-36.

［15］ 胡毓仁,李庆典,陈伯真.船舶及海洋工程结构疲劳可靠性分析［M］.哈尔滨:哈尔滨工程大学出版社,2010: 121-125.

［16］ ABS. Guidance notes on spectral-based fatigue analysis for floating offshore structures［S］. New York: American Bureau of Shipping, 2005: 26-29.

［17］ TORNG T Y, WIRSCHING P H. Fatigue and fracture reliability and maintainability process ［J］. Journal of Structural Engineering, 1991, 117(12): 3804-3822.

［18］ KUNG C J, WIRSCHING P H. Fatigue and fracture reliability and maintainability of TLP tendons ［J］. Safety and Reliability, 1992, 1(2): 15-21.

［19］ JIAO G Y, Moan T. Reliability-based fatigue and fracture design criteria for welded offshore structures ［J］. Engine-ering Fracture Mechanics, 1992, 41(2): 271-282.

［20］ MOAN T. Fatigue reliability of marine structures, from the alexander kielland accident to life cycle assessment ［J］. International Journal of Offshore and Polar Engineering, 2007, 17(1): 1-21.

［21］ DNV. Recommended practice for fatigue strength analysis of off shore steel structures［S］. Norway: Det Norske Veritas, 2001: 37.

［22］ DNV. Fatigue design of offshore steel structures［S］. Norway: Det Norske Veritas, 2005.

［23］ ABS. Guide for the fatigue assessment of offshore structures［S］. New York: American Bureau of Shipping, 2003.
No related articles found!