海洋钻井平台井架结构强度分析
发布时间：2018-08-20 16:53
【摘要】：海洋钻井平台井架是目前国内各大海洋工程设备商刚刚开始涉足的领域。井架是整个钻井系统的基础结构,在钻井作业中起到起重和挂载其他设备的作用。对于海洋钻井平台井架,国内的研究资料稀少,对此类平台结构的受力特点了解不深,难以全面掌握其结构特性,发现潜在危险区域。这使得在实际工程中无法对此类井架结构的安全性提供有力的保障,同时也阻碍了我国海洋工程装备的设计和开发。论文主要研究了海洋钻井平台井架的结构强度。此项研究可为我国自主设计海上钻井平台井架的结构设计提供相关技术和参考资料,有助于我国海洋工程设备的发展。本研究成果也可推广到其他结构类型的井架结构设计。论文首先确定了海洋钻井平台井架结构强度的基本分析方法、制定了分析流程、总结了主要分析内容并给出了强度校核衡准;其次,全面讨论了风载荷、大钩载荷、钻井扭矩、船体运动载荷等钻井井架的外部载荷;最后,建立了典型平台井架的有限元模型,研究和讨论了有限元分析中的几个关键技术,并对典型平台井架结构进行了有限元直接计算,分析了井架的应力大小及分布,对井架整体结构强度和局部节点强度进行了校核。本论文主要研究结论为:(1)井架的支撑腿上靠近底部的杆件应力较高,日后如需要提升作业载荷的话应做适当加强。(2)受力最集中的天车横梁最大强度利用因子为0.91,说明设计采用的构件尺寸满足1000t大钩载荷的作业能力,经济合理。(3)总结了节点计算的关键点,以及计算流程。
[Abstract]:The Derrick of offshore drilling platform is a field that the major offshore engineering equipment manufacturers have just begun to set foot in at present. Derrick is the basic structure of the whole drilling system, which plays the role of lifting and mounting other equipment in drilling operation. For offshore drilling platform Derrick, the domestic research data are scarce, the mechanical characteristics of this kind of platform structure are not well understood, it is difficult to master its structural characteristics comprehensively and to find out the potential dangerous area. This makes it impossible to guarantee the safety of this kind of Derrick structure in practical engineering, and it also hinders the design and development of marine engineering equipment in China. This paper mainly studies the structural strength of offshore drilling platform Derrick. This study can provide relevant technology and reference materials for the structural design of offshore drilling platform Derrick in China, and is helpful to the development of marine engineering equipment in China. The research results can also be extended to other types of Derrick structure design. At first, the paper determines the basic analysis method of the structure strength of offshore drilling platform Derrick, formulates the analysis flow, summarizes the main contents of the analysis and gives the strength check, secondly, discusses comprehensively the wind load, the big hook load, the drilling torque, Finally, the finite element model of typical platform Derrick is established, several key techniques in finite element analysis are studied and discussed, and the finite element direct calculation of typical platform Derrick structure is carried out. The stress size and distribution of Derrick are analyzed, and the overall structural strength and local joint strength of Derrick are checked. The main conclusions of this paper are as follows: (1) the stress of the member near the bottom of the support leg of the Derrick is high. If it is necessary to raise the working load in the future, it should be strengthened appropriately. (2) the maximum strength utilization factor of the crane beam with the most concentrated force is 0.91. it shows that the dimensions of the components used in the design can meet the operational capacity of 1000t large hook load. (3) the key points of node calculation and the calculation flow are summarized.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U674.381
本文编号：2194335
[Abstract]:The Derrick of offshore drilling platform is a field that the major offshore engineering equipment manufacturers have just begun to set foot in at present. Derrick is the basic structure of the whole drilling system, which plays the role of lifting and mounting other equipment in drilling operation. For offshore drilling platform Derrick, the domestic research data are scarce, the mechanical characteristics of this kind of platform structure are not well understood, it is difficult to master its structural characteristics comprehensively and to find out the potential dangerous area. This makes it impossible to guarantee the safety of this kind of Derrick structure in practical engineering, and it also hinders the design and development of marine engineering equipment in China. This paper mainly studies the structural strength of offshore drilling platform Derrick. This study can provide relevant technology and reference materials for the structural design of offshore drilling platform Derrick in China, and is helpful to the development of marine engineering equipment in China. The research results can also be extended to other types of Derrick structure design. At first, the paper determines the basic analysis method of the structure strength of offshore drilling platform Derrick, formulates the analysis flow, summarizes the main contents of the analysis and gives the strength check, secondly, discusses comprehensively the wind load, the big hook load, the drilling torque, Finally, the finite element model of typical platform Derrick is established, several key techniques in finite element analysis are studied and discussed, and the finite element direct calculation of typical platform Derrick structure is carried out. The stress size and distribution of Derrick are analyzed, and the overall structural strength and local joint strength of Derrick are checked. The main conclusions of this paper are as follows: (1) the stress of the member near the bottom of the support leg of the Derrick is high. If it is necessary to raise the working load in the future, it should be strengthened appropriately. (2) the maximum strength utilization factor of the crane beam with the most concentrated force is 0.91. it shows that the dimensions of the components used in the design can meet the operational capacity of 1000t large hook load. (3) the key points of node calculation and the calculation flow are summarized.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U674.381
【参考文献】
相关期刊论文 前1条
1 韩玉强;;钻井井架动力测试与综合性能评价[J];机械科学与技术;2012年10期
，本文编号：2194335
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