半潜平台总体强度评估的谱分析法和设计波法对比
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摘要
采用谱分析方法对半潜平台进行总体强度评估,验证了谱分析方法的可操作性。利用谱分析法计算平台关键连接部位处的应力水平,并与采用设计波法得到的应力结果进行比较,讨论两种方法之间的相关性。计算表明,谱分析法与设计波法存在一定的相关性,谱分析法的计算结果相对准确可靠,设计波法的计算精度依赖于选取的特征载荷工况,且目前规范推荐的载荷工况不够全面。本研究成果可为类似平台的总体强度分析提供参考。
The spectral-based global strength assessment of the semi-submersible platform is proposed,and the maneuverability of the spectral analysis method is verified. The correlation between the spectral analysis method and the design wave method is explored by comparing the structural stress in the key connection area of the platform calculated by two methods. The results show that there is a certain correlation between two methods,the calculation results of spectral analysis are relatively accurate and reliable,the accuracy of the design wave method depends on the selected characteristic load conditions,and the current wave conditions recommended by the standards are not comprehensive enough.The conclusions will be helpful for similar deep water semi-submersible platforms.
The spectral-based global strength assessment of the semi-submersible platform is proposed,and the maneuverability of the spectral analysis method is verified. The correlation between the spectral analysis method and the design wave method is explored by comparing the structural stress in the key connection area of the platform calculated by two methods. The results show that there is a certain correlation between two methods,the calculation results of spectral analysis are relatively accurate and reliable,the accuracy of the design wave method depends on the selected characteristic load conditions,and the current wave conditions recommended by the standards are not comprehensive enough.The conclusions will be helpful for similar deep water semi-submersible platforms.
引文
[1]白艳彬,刘俊,薛鸿祥,等.深水半潜式钻井平台总体强度分析[J].中国海洋平台,2010,25(2):22-27.(BAI Yanbin,LIU Jun,XUE Hongxiang,et al. Global strength analysis of a deepwater semi-submersible platform[J]. China Offshore Platform,2010,25(2):22-27.(in Chinese))
[2]严文军,刘俊.半潜平台总体强度计算中的波浪工况研究[J].船舶工程,2014,36(4):108-111.(YAN Wenjun,LIU Jun. Study on wave working condition in overall strengthcalculation of semi-submersible platform[J]. Ship Engineering,2014,36(4):108-111.(in Chinese))
[3]钱笠君.基于谱分析法的海洋工程结构强度评估方法研究[J].船舶,2017,28(5):38-42.(QIAN Lijun. Spectral-based strength assessment of ocean engineering structure[J]. Ship&Boat,2017,28(5):38-42.(in Chinese))
[4]杨川,乔东生,欧进萍. Truss Spar平台总体结构强度分析[J].船舶工程,2012,34(1):69-73.(YANG Chuan,QIAO Dongsheng,OU Jinping. Global analysis on structural strength of a Truss Spar platform[J]. Ship Engineering,2012,34(1):69-73.(in Chinese))
[5] JEDRUSZEK K,MESKERS G. Spectral strength analysis of a transportation barge[J]. Journal of Northeastern University,2015,35(3):383-387.
[6] DERBANNE Q,HAUTECLOCQUE G D,EL A,et al. Design wave selection for strength assessment of floating structures[C]∥Practical Design of Ships. 2013.
[7] HAUTECLOCQUE G D,DERBANNE Q,EL-GHARBAOUI A. Comparison of different equivalent design waves with spectral analysis[C]∥Proceedings of the ASME 31st International Conference on Ocean,Offshore and Arctic Engineering. 2012:353-361.
[8] SCHMIDT D,MANUEL L,NGUYEN H H,et al. Fatigue reliability analysis for brace-column connection details in a semisubmersible hull[J]. Journal of Offshore Mechanics&Arctic Engineering,2015,137(6):10.1115/1.4031493.
[9] YU Y Z,FENG G Q,REN H L. Ultimate strength assessment of semi-submersible platform under different load conditions[C]∥Proceedings of the ASME 36th International Conference on Ocean,Offshore and Arctic Engineering. 2017:V03BT02A045.
[10]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 Chaoyang,LIU Jun,BAI Yanbin,et al. Spectral-based fatigue analysis of a deep-water semi-submersible platform[J]. The Ocean Engineering,2012,30(1):53-59.(in Chinese))
[11]陈锋,刘俊,薛鸿祥,等.半潜平台疲劳热点应力长期分布参数研究[J].海洋工程,2016,34(4):80-84.(CHEN Feng,LIU Jun,XUE Hongxiang,et al. Research on long-term distribution parameters of fatigue hotspots stress for a semi-submersible platform[J]. The Ocean Engineering,2016,34(4):80-84.(in Chinese))
[12]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(3):1-8.(MA Wangkou,WANG Zhiqing,ZHANG Haibin. Study on spectrum-based fatigue life direct calculation for spots of deep-water semi-submerged drilling unit[J]. The Ocean Engineering,2008,26(3):1-8.(in Chinese))
[13] GD XX-2012,海上移动平台结构状态动态评价及应急响应指南[S].北京:中国船级社,2012.(GD XX-2012,Guidelines for structural continuous assessment and emergency response service of mobile offshore units[S]. 2012.(in Chinese))
[14] DNV. Column-stabilized units[S]. 2015.
[15] ABS. Rules for building and classing mobile offshore drilling units[S]. 2016.
[2]严文军,刘俊.半潜平台总体强度计算中的波浪工况研究[J].船舶工程,2014,36(4):108-111.(YAN Wenjun,LIU Jun. Study on wave working condition in overall strengthcalculation of semi-submersible platform[J]. Ship Engineering,2014,36(4):108-111.(in Chinese))
[3]钱笠君.基于谱分析法的海洋工程结构强度评估方法研究[J].船舶,2017,28(5):38-42.(QIAN Lijun. Spectral-based strength assessment of ocean engineering structure[J]. Ship&Boat,2017,28(5):38-42.(in Chinese))
[4]杨川,乔东生,欧进萍. Truss Spar平台总体结构强度分析[J].船舶工程,2012,34(1):69-73.(YANG Chuan,QIAO Dongsheng,OU Jinping. Global analysis on structural strength of a Truss Spar platform[J]. Ship Engineering,2012,34(1):69-73.(in Chinese))
[5] JEDRUSZEK K,MESKERS G. Spectral strength analysis of a transportation barge[J]. Journal of Northeastern University,2015,35(3):383-387.
[6] DERBANNE Q,HAUTECLOCQUE G D,EL A,et al. Design wave selection for strength assessment of floating structures[C]∥Practical Design of Ships. 2013.
[7] HAUTECLOCQUE G D,DERBANNE Q,EL-GHARBAOUI A. Comparison of different equivalent design waves with spectral analysis[C]∥Proceedings of the ASME 31st International Conference on Ocean,Offshore and Arctic Engineering. 2012:353-361.
[8] SCHMIDT D,MANUEL L,NGUYEN H H,et al. Fatigue reliability analysis for brace-column connection details in a semisubmersible hull[J]. Journal of Offshore Mechanics&Arctic Engineering,2015,137(6):10.1115/1.4031493.
[9] YU Y Z,FENG G Q,REN H L. Ultimate strength assessment of semi-submersible platform under different load conditions[C]∥Proceedings of the ASME 36th International Conference on Ocean,Offshore and Arctic Engineering. 2017:V03BT02A045.
[10]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 Chaoyang,LIU Jun,BAI Yanbin,et al. Spectral-based fatigue analysis of a deep-water semi-submersible platform[J]. The Ocean Engineering,2012,30(1):53-59.(in Chinese))
[11]陈锋,刘俊,薛鸿祥,等.半潜平台疲劳热点应力长期分布参数研究[J].海洋工程,2016,34(4):80-84.(CHEN Feng,LIU Jun,XUE Hongxiang,et al. Research on long-term distribution parameters of fatigue hotspots stress for a semi-submersible platform[J]. The Ocean Engineering,2016,34(4):80-84.(in Chinese))
[12]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(3):1-8.(MA Wangkou,WANG Zhiqing,ZHANG Haibin. Study on spectrum-based fatigue life direct calculation for spots of deep-water semi-submerged drilling unit[J]. The Ocean Engineering,2008,26(3):1-8.(in Chinese))
[13] GD XX-2012,海上移动平台结构状态动态评价及应急响应指南[S].北京:中国船级社,2012.(GD XX-2012,Guidelines for structural continuous assessment and emergency response service of mobile offshore units[S]. 2012.(in Chinese))
[14] DNV. Column-stabilized units[S]. 2015.
[15] ABS. Rules for building and classing mobile offshore drilling units[S]. 2016.
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