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首页> 外文期刊>Mathematical Problems in Engineering >Quasistatic Nonlinear Analysis of a Drill Pipe in Subsea Xmas Tree Installation
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Quasistatic Nonlinear Analysis of a Drill Pipe in Subsea Xmas Tree Installation

机译：海底采油树装置中钻杆的准静态非线性分析

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摘要

To analyse the stress and deformation of a drill pipe during the lowering of a subsea Xmas tree, a mechanical analytical model and equation were established based on Euler-Bernoulli beam theory. The wave phase is selected as one of the variable parameters for analysis of the deformation and stress of the drill pipe. The research results indicate that the maximum response occurs at 0 radians in the scope of 0 to 2, and the quasistatic nonlinear analysis is analysed at 0. In addition, Orcaflex software is applied for simulation, and the simulation results are compared with the results from proposed method, which demonstrate the model and the method accuracy. Factors that affect the installation process are discussed, such as current velocity, wave height, pipe size, and towing speed. The results show that all factors have remarkable effects on stress and deformation and that the wave height has a lesser effect on the deformation of the drill pipe. The viable towing speed is chosen by discussing the total stress of the drill pipe with various towing speeds and is notably useful for installation in the real sea state.
机译：为了分析海底采油树降落时钻杆的应力和变形，基于欧拉-伯努利梁理论建立了力学分析模型和方程。选择波相位作为可变参数之一，以分析钻杆的变形和应力。研究结果表明，最大响应出现在0到0的弧度范围内，且在0到2的范围内进行了准静态非线性分析。此外，使用Orcaflex软件进行仿真，并将仿真结果与来自提出的方法，证明了模型和方法的准确性。讨论了影响安装过程的因素，例如电流速度，波高，管道尺寸和牵引速度。结果表明，所有因素对应力和变形都有显着影响，而波高对钻杆变形的影响较小。通过讨论各种拖曳速度下钻杆的总应力来选择可行的拖曳速度，这对于在真实海况下安装特别有用。

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  • 来源
    《Mathematical Problems in Engineering》 |2019年第1期|4241363.1-4241363.9|共9页
  • 作者

    Qin Haozhi; Liu Jian; Xiao Wensheng; Wang Bingxiang;

  • 作者单位

    China Univ Petr East China, Coll Mech & Elect Engn, Qingdao 266580, Shandong, Peoples R China;

    China Univ Petr East China, Coll Mech & Elect Engn, Qingdao 266580, Shandong, Peoples R China;

    China Univ Petr East China, Coll Mech & Elect Engn, Qingdao 266580, Shandong, Peoples R China;

    China Univ Petr East China, Coll Mech & Elect Engn, Qingdao 266580, Shandong, Peoples R China;

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