海洋石油平台吊艇架结构安全评估
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摘要
海洋石油平台吊艇架结构安全直接关系到整个平台的救逃生。为全面评估吊艇架结构承载安全性,采用ABAQUS有限元软件进行吊艇架结构动静态力学分析,并在现场进行无损探伤及功能试验。研究结果表明:吊艇架结构在2.2倍工作负荷下最大等效应力为70.81 MPa,满足强度要求;最大位移3.38 mm,变形较小;模态分析显示吊艇架结构自振频率较大;吊艇架结构关键焊缝及应力集中部位无缺陷,救生艇升降时吊艇架无明显变形及异常。通过对吊艇架结构的有限元分析及现场检验,为吊艇架的安全评估提供了一种新的思路。
The structure safety of davit on the offshore oil platform has a direct impact on the rescue and escape of the whole platform. In order to fully assess the bearing safety of the davit structure,the dynamic and static mechanical analysis on the davit structure were carried out by using the ABAQUS finite element software,and the nondestructive inspection and function tests were performed on site. The results showed that the maximum equivalent stress of the davit structure under 2. 2 times of the working load was 70. 81 MPa,which could meet the strength requirement. The maximum displacement was 3. 38 mm,so the deformation was relatively small. The modal analysis showed that the natural vibration frequency of the davit structure was relatively large. There were no defects in the critical welding seam and stress concentration positions of the davit structure,and also no obvious deformation and abnormality in the davit during the lifting of lifeboat. A new idea was provided for the safety assessment of the davit through the finite element analysis and field inspection of the davit structure.
The structure safety of davit on the offshore oil platform has a direct impact on the rescue and escape of the whole platform. In order to fully assess the bearing safety of the davit structure,the dynamic and static mechanical analysis on the davit structure were carried out by using the ABAQUS finite element software,and the nondestructive inspection and function tests were performed on site. The results showed that the maximum equivalent stress of the davit structure under 2. 2 times of the working load was 70. 81 MPa,which could meet the strength requirement. The maximum displacement was 3. 38 mm,so the deformation was relatively small. The modal analysis showed that the natural vibration frequency of the davit structure was relatively large. There were no defects in the critical welding seam and stress concentration positions of the davit structure,and also no obvious deformation and abnormality in the davit during the lifting of lifeboat. A new idea was provided for the safety assessment of the davit through the finite element analysis and field inspection of the davit structure.
引文
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[15]李彦丽.海洋固定平台模块钻机振动分析[J].船海工程,2017,46(5):65-69.LI Yanli.Vibration analysis for modular drilling rig of offshore fixed platform[J].Ship&Ocean Engineering,2017,46(5):65-69.
[2]何沙,陈东升,朱林,等.海上钻井平台安全风险预警模型应用研究[J].中国安全生产科学技术,2012,8(4):148-154.HE Sha,CHEN Dongsheng,ZHU Lin,et al.Study on application of safety risk early warning model for offshore drilling platform[J].Journal of Safety Science and Technology,2012,8(4):148-154.
[3]王忠野.工作艇收放装置设置及结构优化[D].哈尔滨:哈尔滨工程大学,2013.
[4]盖家旭.船舶救生设备-自由抛落式艇架的研究与设计[D].青岛:中国海洋大学,2010.
[5]崔东坡.吊艇架被动式抗摆设计研究[D].哈尔滨:哈尔滨工程大学.2009.
[6]刘震,洪海容,陈培基.吊艇架技术与标准的发展及相关问题探讨[J].船舶工程,2006,28(4):9-12.LIU Zhen,HONG Hairong,CHEN Peiji.Development of davit technology and standard and research on some problems concerned[J].Ship Engineering,2006,28(4):9-12.
[7]全国船舶舾装标准化技术委员会救生设备分技术委员会.吊艇架装置技术条件:GB 13406-92[S].北京:中国标准出版社,1992.
[8]狄海涛.救生艇承载释放装置的缺陷及检验[J].中国船检,2012(4):84-85.DI Haitao.Defects and inspection of the releasing device of lifeboat[J].China Ship Survey,2012(4):84-85.
[9]刘佳富.重力降落型救生艇吊钩系统[J].航海技术,2015(1):59-61.LIU Jiafu.Hook system of gravity landing lifeboat[J].Navigation Technology,2015(1):59-61.
[10]冯启荣.海上吊艇架系统建模及被动式抗摆系统设计及仿真[J].舰船科学技术,2017(20):168-170.FENG Qirong.Modeling of marine davit system and design and simulation of passive anti swing system[J].Ship Science and Technology,2017(20):168-170.
[11]王文明.ABAQUS有限元分析与案例精通-在海洋石油工程中的应用[M].北京:机械工业出版社,2017.
[12]全国技术产品文件标准化技术委员会.机械产品结构有限元力学分析通用规则:GB/T33582-2017[S].北京:中国标准出版社,2017.
[13]王庆群,华剑,周思柱,等.基于ANSYS的深井钻机底座模态分析[J].石油机械,2013,41(7):25-27.WANG Qingqun,HUA Jian,ZHOU Sizhu,et al.ANSYS-based modal analysis of deep-well rig substructure[J].China Petroleum Machinery,2013,41(7):25-27.
[14]胡朋,齐明侠.半潜式钻井平台上钻机井架振动分析[J].石油机械,2010,38(11):1-4.HU Peng,QI Mingxia.An analysis of the derrick vibration of the drilling rig on the semi-submersible drilling platform[J].China Petroleum Machinery,2010,38(11):1-4.
[15]李彦丽.海洋固定平台模块钻机振动分析[J].船海工程,2017,46(5):65-69.LI Yanli.Vibration analysis for modular drilling rig of offshore fixed platform[J].Ship&Ocean Engineering,2017,46(5):65-69.