本文選題：海洋平臺(tái) + PPP�。� 參考：《大連理工大學(xué)》2015年碩士論文

【摘要】：海洋環(huán)境的復(fù)雜性和不確定性易對(duì)海洋平臺(tái)的結(jié)構(gòu)造成不利影響,對(duì)平臺(tái)的安全運(yùn)營(yíng)形成隱患。為了保障平臺(tái)的安全作業(yè),優(yōu)化平臺(tái)結(jié)構(gòu)設(shè)計(jì),因而需要對(duì)海洋平臺(tái)進(jìn)行長(zhǎng)時(shí)間的原型監(jiān)測(cè)。本文以南海流花海域的“挑戰(zhàn)號(hào)”海洋平臺(tái)為對(duì)象,研究了半潛式海洋平臺(tái)原型監(jiān)測(cè)技術(shù),其中著重研究了系泊定位系統(tǒng)的監(jiān)測(cè)測(cè)量技術(shù)。由于海洋平臺(tái)浮體與系泊系統(tǒng)的強(qiáng)耦合,浮體的位置與運(yùn)動(dòng)影響著系泊系統(tǒng)的受力。由于“挑戰(zhàn)號(hào)”海洋平臺(tái)沒(méi)有固定基站,平臺(tái)定位是利用星際差分GPS進(jìn)行定位測(cè)量,精度只能達(dá)到2分米,且需要支付昂貴的服務(wù)費(fèi)。本文提出利用精密單點(diǎn)定位(PPP)技術(shù)監(jiān)測(cè)海洋平臺(tái)的位移,并總結(jié)了PPP技術(shù)的難點(diǎn)與要點(diǎn),編寫(xiě)了靜態(tài)定位精度達(dá)到厘米級(jí)的PPP軟件。海洋平臺(tái)系泊受力監(jiān)測(cè)有兩種方法,一種是直接通過(guò)壓力傳感器測(cè)量系泊錨鏈的水平回復(fù)力,一種是通過(guò)測(cè)量系泊錨鏈的姿態(tài)間接通過(guò)計(jì)算求得錨鏈?zhǔn)艿降牧�。在“挑�?zhàn)號(hào)”海洋平臺(tái)上前一種方式測(cè)量的系統(tǒng)有著諸多的缺陷,為了彌補(bǔ)這些缺陷,本文跟據(jù)“挑戰(zhàn)號(hào)”實(shí)際情況開(kāi)發(fā)了一套系泊受力的集成系統(tǒng),該系統(tǒng)能夠存儲(chǔ)長(zhǎng)期監(jiān)測(cè)的錨鏈?zhǔn)芰?shù)據(jù),并能夠?qū)?shù)據(jù)進(jìn)行簡(jiǎn)單分析,生成當(dāng)天的報(bào)表文件。針對(duì)后一種系泊監(jiān)測(cè)方法,本文開(kāi)發(fā)了一款水下自容式姿態(tài)監(jiān)測(cè)裝置。該裝置能夠測(cè)量在不同水深時(shí)的系泊的加速度與傾斜角度,從而間接求得系泊的受力。該裝置分別在硬件和軟件上進(jìn)行省電優(yōu)化設(shè)計(jì),從而能夠監(jiān)測(cè)更長(zhǎng)的時(shí)間。通過(guò)實(shí)驗(yàn),本文編寫(xiě)的PPP軟件的靜態(tài)定位精度達(dá)到厘米級(jí),動(dòng)態(tài)定位精度達(dá)到分米級(jí)。此外,系泊壓力監(jiān)測(cè)集成系統(tǒng)經(jīng)實(shí)驗(yàn)發(fā)現(xiàn)能夠顯示、存儲(chǔ)和報(bào)警系泊張力的時(shí)間序列,足以彌補(bǔ)現(xiàn)有系統(tǒng)的缺陷。自容式姿態(tài)監(jiān)測(cè)裝置已在“挑戰(zhàn)號(hào)”海洋平臺(tái)錨鏈監(jiān)測(cè)中使用,取下的數(shù)據(jù)經(jīng)分析滿(mǎn)足系泊監(jiān)測(cè)需求。
[Abstract]:The complexity and uncertainty of the marine environment are easy to have an adverse impact on the structure of the offshore platform and pose a hidden danger to the safe operation of the platform. In order to ensure the safe operation of the platform and optimize the design of the platform structure, the long time prototype monitoring of the offshore platform is needed. Object, study the prototype monitoring technology of semi submersible offshore platform, which focuses on the monitoring and measurement technology of mooring positioning system. Because of the strong coupling between the floating body and mooring system, the position and motion of the floating body influence the force of mooring system. The precision of interstellar difference GPS can only reach 2 m, and it needs to pay the expensive service charge. This paper proposes the use of the precision single point positioning (PPP) technology to monitor the displacement of the offshore platform, and summarizes the difficulties and key points of the PPP technology, and writes the PPP software of the static positioning precision to the centimeter level. The two method is to measure the horizontal resilience of mooring chain directly through a pressure sensor. One is to calculate the force of the anchor chain indirectly through the measurement of mooring anchorage. There are many defects in the system measured in the front of the "challenge" ocean platform. In order to make up for these defects, this paper follows the "pick". An integrated system of mooring force is developed in the actual situation of war number. This system can store the long monitored anchorage data, and can analyze the data easily and generate the report files of the day. In this paper, a underwater self capacitive attitude monitoring device is developed for the post mooring monitoring method. The force of mooring is indirectly obtained by the acceleration and inclination angle of mooring in different water depth. The device is designed to optimize the energy saving of the hardware and software, and can monitor the longer time. Through the experiment, the static positioning accuracy of the PPP software in this paper reaches to the level of millimeter and the dynamic positioning accuracy reaches the meter level. The time series of the mooring pressure monitoring integrated system can show that the time series of the mooring tension of storage and alarm can make up for the defects of the existing system. The self capacitive attitude monitoring device has been used in the monitoring of the anchor chain of the "challenge" marine platform, and the obtained data can be analyzed to meet the requirements of the mooring monitoring.
【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】：2015
【分類(lèi)號(hào)】：P715;TP274

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相關(guān)期刊論文 前2條

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本文編號(hào)：2016221