本文關(guān)鍵詞： 深水鉆井船 動(dòng)力定位 時(shí)域分析 環(huán)境載荷 數(shù)值計(jì)算　出處：《中國(guó)艦船研究院》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著海洋油氣開(kāi)發(fā)走向深水，動(dòng)力定位技術(shù)正越來(lái)越多地應(yīng)用到海洋工程裝備之中。特別是對(duì)于具備超深水作業(yè)能力的鉆井船，動(dòng)力定位技術(shù)已成為其成功設(shè)計(jì)、建造和使用的一項(xiàng)關(guān)鍵技術(shù)。本論文結(jié)合國(guó)家工業(yè)和信息化部“3000米水深鉆井船自主研發(fā)”科研項(xiàng)目，，開(kāi)展了深水鉆井船動(dòng)力定位時(shí)域仿真分析研究工作。論文研究過(guò)程中，重點(diǎn)針對(duì)深水鉆井船的船型和作業(yè)特點(diǎn)，圍繞著環(huán)境載荷數(shù)值分析方法和動(dòng)力定位時(shí)域仿真分析方法進(jìn)行了深入研究。 首先，論文對(duì)動(dòng)力定位時(shí)域仿真分析方法進(jìn)行了研究。論文深入分析了動(dòng)力定位系統(tǒng)時(shí)域仿真原理，研究了運(yùn)動(dòng)方程的建立、環(huán)境載荷的模擬和推力系統(tǒng)的反饋控制方法。在此基礎(chǔ)上，研究并歸納了應(yīng)用SIMO軟件進(jìn)行動(dòng)力定位時(shí)域模擬的分析流程，并進(jìn)一步分析了鉆井船隔水管的計(jì)算方法。論文研究并建立了適用于深水鉆井船動(dòng)力定位時(shí)域仿真分析的方法與流程。 然后，論文從對(duì)鉆井船動(dòng)力定位影響最大的風(fēng)載荷和流載荷入手，深入研究了風(fēng)載荷和流載荷的CFD分析方法。論文研究了CFD的理論基礎(chǔ)，分析并總結(jié)了適用于鉆井船風(fēng)載荷和流載荷數(shù)值計(jì)算的湍流模式和壁面函數(shù)。應(yīng)用論文研究方法，對(duì)一艘深水鉆井船的風(fēng)載荷和流載荷進(jìn)行了數(shù)值分析，并與模型試驗(yàn)和經(jīng)驗(yàn)公式的分析結(jié)果進(jìn)行了對(duì)比，驗(yàn)證了論文研究方法的可靠性。同時(shí)，針對(duì)鉆井船的特點(diǎn)，論文進(jìn)一步分析了鉆井船月池對(duì)流載荷的貢獻(xiàn)，以及鉆井船上部設(shè)備模塊形狀效應(yīng)和遮蔽效應(yīng)對(duì)風(fēng)載荷的影響。 最后，基于前述研究方法，對(duì)一艘深水鉆井船進(jìn)行了動(dòng)力定位時(shí)域仿真分析。通過(guò)實(shí)例分析，研究了不同的Kalman增益和控制增益對(duì)動(dòng)力定位的影響，總結(jié)了不同海況條件下系統(tǒng)參數(shù)的調(diào)整機(jī)制。論文進(jìn)一步結(jié)合挪威船級(jí)社規(guī)范中的ERN參數(shù)計(jì)算要求，分析了該鉆井船在最不利海況條件下的定位能力。論文最后還分析總結(jié)了隔水管系統(tǒng)對(duì)鉆井船動(dòng)力定位性能的影響。 通過(guò)上述各項(xiàng)研究工作，論文初步建立了準(zhǔn)確有效的鉆井船動(dòng)力定位時(shí)域仿真分析流程，完善了深水鉆井船動(dòng)力定位能力的分析手段。
[Abstract]:With the development of offshore oil and gas into deep water, dynamic positioning technology is more and more used in marine engineering equipment, especially for drilling vessels with ultra-deep water operation capacity. Dynamic positioning technology has become a key technology in its successful design, construction and application. The dynamic positioning of deep-water drilling ship is simulated and analyzed in time domain. In the course of the research, the emphasis is put on the ship type and operation characteristics of deep-water drilling ship. The numerical analysis method of environmental load and the time domain simulation analysis method of dynamic positioning are studied in detail. Firstly, the paper studies the time-domain simulation and analysis method of dynamic positioning, and deeply analyzes the time-domain simulation principle of dynamic positioning system, and studies the establishment of motion equation. Based on the simulation of environmental load and the feedback control method of thrust system, the analysis flow of time-domain simulation of dynamic positioning with SIMO software is studied and summarized. Furthermore, the calculation method of drilling vessel riser is analyzed, and the method and flow of time domain simulation for dynamic positioning of deepwater drilling vessel are studied and established in this paper. Then, starting with the wind load and flow load, which have the greatest influence on the dynamic location of drilling ship, the paper deeply studies the CFD analysis method of wind load and flow load, and studies the theoretical basis of CFD. The turbulence model and wall function suitable for numerical calculation of wind load and flow load of drilling ship are analyzed and summarized. The wind load and flow load of a deep water drilling ship are analyzed numerically by using the research method in this paper. Compared with the results of model test and empirical formula, the reliability of the research method is verified. At the same time, according to the characteristics of the drilling ship, the contribution of the convection load of the lunar pool of the drilling ship is further analyzed. And the effect of shape effect and shielding effect on wind load. Finally, based on the above research method, the dynamic positioning of a deep-water drilling ship is simulated in time domain. The effects of different Kalman gain and control gain on the dynamic positioning are studied by an example. The adjustment mechanism of system parameters under different sea conditions is summarized, and the calculation requirements of ERN parameters in the Norse Classification Society Code are further combined in this paper. The positioning ability of the drilling vessel under the most adverse sea conditions is analyzed. Finally, the influence of the riser system on the dynamic positioning performance of the drilling vessel is analyzed and summarized. Through the above research work, the paper preliminarily establishes the accurate and effective time domain simulation analysis flow of the dynamic positioning of the drilling ship, and improves the analysis method of the dynamic positioning capability of the deep-water drilling ship.
【學(xué)位授予單位】：中國(guó)艦船研究院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U674.381;U664.82

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相關(guān)期刊論文 前2條

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本文編號(hào)：1462444