本文選題：半潛式試驗平臺 + 水動力性能�。� 參考：《浙江大學》2014年碩士論文

【摘要】：能源是人類社會進步與發(fā)展的重要資源。隨著海洋油氣資源的開采不斷地向深海推進,相關領域的采油平臺技術也越來越受到人們的重視。半潛式平臺因其可變荷載大、抗風能力強、適應水深范圍廣等優(yōu)點而在世界范圍內得到了廣泛的應用。因而如何通過對半潛式浮式平臺及其系泊系統(tǒng)全面的水動力性能分析和平臺結構強度的計算,為平臺的設計優(yōu)化提供一定的參考,提高其運行可靠性就具有了重要的意義。 本文選取—小型半潛式試驗平臺為研究對象,對其水動力特性和結構強度進行了分析研究。論文主要工作包括以下幾個方面 (1)、半潛式試驗平臺詳細介紹 作為國內首艘僅用于科學試驗的小型半潛式試驗平臺,本文對其總的設計方案、基本布置、工程環(huán)境等情況做了詳細的介紹。 (2)、平臺及其系泊系統(tǒng)水動力性能分析 利用ANSYS-AQWA軟件,根據三維勢流理論對該半潛式試驗平臺進行頻域計算,得到平臺在各個頻率和浪向下的運動響應幅值算子(RAO);并對試驗平臺及其系泊系統(tǒng)在風浪流環(huán)境作用下的水動力性能進行時域耦合數值模擬,選取的海洋環(huán)境包括平臺作業(yè)海況和自存海況,通過模擬得到試驗平臺在特定海洋環(huán)境條件下的六自由度運動以及錨鏈的受力和錨體是否會發(fā)生走錨等情況。 同時,在原試驗平臺的基礎上,通過參數的變化,研究平臺主體重心高度的改變所引起的平臺運動響應的變化規(guī)律。 (3)、平臺整體有限元強度分析 采用ANSYS有限元分析模塊建立本試驗平臺的整體模型,對其在多種工況下的結構強度進行整體分析,給出了本試驗平臺在結構方面較薄弱的部分,驗證了平臺結構設計的安全及合理性。 (4)、平臺建造安裝分析 介紹了整個試驗平臺的建造方法及拋錨至海域的過程,可為相關工程人員和高校在校生提供實際工程借鑒。 本文圍繞我國第一艘僅用于科學試驗的半潛式海洋平臺,對平臺及其系泊系統(tǒng)的水動力特性和錨鏈情況進行了全面的分析,研究了半潛式試驗平臺整體結構強度情況,并重點介紹了平臺建造方法和拋錨過程,研究內容可為類似平臺的設計、選型和優(yōu)化提供參考,并為相關人員提供實際工程建造安裝經驗。
[Abstract]:Energy is an important resource for the progress and development of human society. With the development of offshore oil and gas resources, more and more attention has been paid to the platform technology in related fields. Semi-submersible platform has been widely used in the world because of its large variable load, strong wind resistance and wide range of water depth. So how to analyze the hydrodynamic performance of the semi-submersible floating platform and its mooring system and calculate the structural strength of the platform can provide a certain reference for the platform design optimization and improve the reliability of the platform. In this paper, the hydrodynamic characteristics and structural strength of a small semi-submersible test platform are studied. The main work of this paper includes the following aspects: (1) the semi-submersible test platform is introduced in detail as the first small semi-submersible test platform which is only used for scientific test in China. The hydrodynamic performance of the platform and its mooring system is analyzed by using ANSYS-AQWA software. According to the three-dimensional potential flow theory, the frequency domain calculation of the semi-submersible test platform is carried out. The amplitude operator (Rao) of motion response of the platform at various frequencies and waves down is obtained, and the hydrodynamic performance of the test platform and its mooring system under wind and wave environment is simulated numerically in time domain. The selected marine environment includes the operating sea conditions and self-stored sea conditions of the platform. The motion of six degrees of freedom of the test platform under the specific marine environment conditions and the force of the anchor chain and whether the anchor body will take place are obtained by simulation. At the same time, on the basis of the original test platform, through the change of parameters, The dynamic response of the platform caused by the change of the height of the center of gravity of the platform is studied. (3) the finite element strength analysis of the whole platform is carried out by using ANSYS finite element analysis module to establish the whole model of the test platform. The structural strength of the platform under various working conditions is analyzed as a whole, and the weak part of the test platform in structure is given. The safety and rationality of the platform structure design are verified. (4) the construction method of the whole test platform and the process of dropping anchor to sea area are introduced. It can provide practical engineering reference for related engineers and college students. In this paper, the hydrodynamic characteristics of the first semi-submersible offshore platform and its mooring system are comprehensively analyzed, and the overall structural strength of the semi-submersible test platform is studied. The method of platform construction and the process of anchoring are emphatically introduced. The research contents can provide reference for the design, selection and optimization of similar platforms, and provide practical engineering construction and installation experience for relevant personnel.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：P742

【參考文獻】

相關期刊論文 前10條

1 周素蓮;聶武;白勇;;深水半潛式平臺系泊系統(tǒng)設計研究[J];船舶力學;2010年05期

2 劉海霞;;深海半潛式鉆井平臺的發(fā)展[J];船舶;2007年03期

3 張耀光,劉巖,李春平,董麗晶;中國海洋油氣資源開發(fā)與國家石油安全戰(zhàn)略對策[J];地理研究;2003年03期

4 田春榮;;2010年中國石油進出口狀況分析[J];國際石油經濟;2011年03期

5 潘繼平;張大偉;岳來群;;全球海洋油氣勘探開發(fā)狀況與發(fā)展趨勢[J];國土資源情報;2006年07期

6 田春榮;;2011年中國石油和天然氣進出口狀況分析[J];國際石油經濟;2012年03期

7 吳家鳴;;世界及我國海洋油氣產業(yè)發(fā)展及現(xiàn)狀[J];廣東造船;2013年01期

8 江懷友;趙文智;閆存章;齊仁理;鞠斌山;王媛;;世界海洋油氣資源與勘探模式概述[J];海相油氣地質;2008年03期

9 余龍,譚家華;基于準靜定方法的多成分錨泊線優(yōu)化[J];海洋工程;2005年01期

10 童波;楊建民;李欣;;深水半潛式平臺系泊系統(tǒng)動力特性研究[J];海洋工程;2009年01期

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