本文選題：柔性立管 + 防彎器�。� 參考：《大連理工大學(xué)》2014年碩士論文

【摘要】：隨著海洋柔性立管的廣泛使用,防彎器作為立管應(yīng)用的關(guān)鍵附屬構(gòu)件,是我國(guó)開(kāi)發(fā)深水油氣資源必不可少的裝備之一。對(duì)防彎器設(shè)計(jì)和分析的研究十分必要。 海洋柔性立管防彎器的設(shè)計(jì)分為三個(gè)部分,分別是結(jié)構(gòu)尺寸設(shè)計(jì)、材料選擇、連接設(shè)計(jì),每個(gè)設(shè)計(jì)部分都需要依據(jù)相應(yīng)的設(shè)計(jì)準(zhǔn)則開(kāi)展。防彎器的分析同時(shí)面臨三類非線性問(wèn)題,尤其以材料非線性最為突出。多年來(lái)國(guó)內(nèi)外學(xué)者在這兩方面做了大量的研究工作。 本文首先總結(jié)了防彎器設(shè)計(jì)的一般流程和步驟,提出了基于失效模式的防彎器設(shè)計(jì)方法。在此基礎(chǔ)上,介紹了變截面梁理論,利用編程語(yǔ)言編譯初步設(shè)計(jì)小軟件,并應(yīng)用到設(shè)計(jì)中去,結(jié)果良好。為了得到更準(zhǔn)確的分析結(jié)果,利用有限元軟件,建立精細(xì)的三維立管-防彎器模型,并且著重考慮的材料本構(gòu)關(guān)系中,材料非線性對(duì)防彎器的影響。為了解決防彎器應(yīng)用的局限性,本文提出新概念的曲線型防彎器,并對(duì)防彎性能做了分析。最后,本文將設(shè)計(jì)和分析的理論和模型應(yīng)用到實(shí)例中去,實(shí)例來(lái)源于我國(guó)南海典型海況,應(yīng)用在1.5千米水深的柔性立管,給出防彎器的設(shè)計(jì)結(jié)果并分析。 本論文的研究工作主要依托國(guó)家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃)“深水油氣勘探開(kāi)發(fā)關(guān)鍵技術(shù)與裝備項(xiàng)目“柔性海底管道關(guān)鍵技術(shù)研究”(2012AA090314)課題開(kāi)展。
[Abstract]:With the wide use of flexible risers in the ocean, the bending device is the key accessory component of the riser, and it is one of the necessary equipment for the development of deep water oil and gas resources in China. It is necessary to study the design and analysis of the bends.
The design of the flexible riser of the marine flexible riser is divided into three parts, which are structure size design, material selection and connection design. Each design part needs to be carried out according to the corresponding design criteria. The analysis of the anti bending device is faced with three kinds of nonlinear problems, especially the non linear material is the most prominent. For many years, the scholars at home and abroad have been in these two aspects. A lot of research work has been done.
This paper first summarizes the general process and steps of the design of the anti bending device, and puts forward the design method of the bending device based on failure mode. On this basis, the theory of the variable section beam is introduced, and the preliminary design of the small software is compiled with the programming language, which is applied to the design, and the result is good. The finite element software is used to get more accurate analysis results. In order to solve the limitation of the application of the bending device, a new concept curve type anti bending device is proposed and the bending resistance performance is analyzed. Finally, the theory and model of design and analysis are applied to the theory and model of the design and analysis. In the example, the example is derived from the typical sea condition in the South China Sea, and the flexible riser is applied in the water depth of 1.5 km. The design results of the anti bending device are given and analyzed.
The research work of this paper is mainly based on the national high technology research and development plan (863 plan) "the key technology research on the key technology and equipment project of deepwater oil and gas exploration and development" (2012AA090314).
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：P742

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本文編號(hào)：2072005