本文選題：海洋平臺 + 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海洋平臺的結(jié)構(gòu)造成不利影響,對平臺的安全運(yùn)營形成隱患。為了保障平臺的安全作業(yè),優(yōu)化平臺結(jié)構(gòu)設(shè)計,因而需要對海洋平臺進(jìn)行長時間的原型監(jiān)測。本文以南海流花海域的“挑戰(zhàn)號”海洋平臺為對象,研究了半潛式海洋平臺原型監(jiān)測技術(shù),其中著重研究了系泊定位系統(tǒng)的監(jiān)測測量技術(shù)。由于海洋平臺浮體與系泊系統(tǒng)的強(qiáng)耦合,浮體的位置與運(yùn)動影響著系泊系統(tǒng)的受力。由于“挑戰(zhàn)號”海洋平臺沒有固定基站,平臺定位是利用星際差分GPS進(jìn)行定位測量,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定位(PPP)技術(shù)監(jiān)測海洋平臺的位移,并總結(jié)了PPP技術(shù)的難點與要點,編寫了靜態(tài)定位精度達(dá)到厘米級的PPP軟件。海洋平臺系泊受力監(jiān)測有兩種方法,一種是直接通過壓力傳感器測量系泊錨鏈的水平回復(fù)力,一種是通過測量系泊錨鏈的姿態(tài)間接通過計算求得錨鏈?zhǔn)艿降牧�。在“挑�?zhàn)號”海洋平臺上前一種方式測量的系統(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”實際情況開發(fā)了一套系泊受力的集成系統(tǒng),該系統(tǒng)能夠存儲長期監(jiān)測的錨鏈?zhǔn)芰?shù)據(jù),并能夠?qū)?shù)據(jù)進(jìn)行簡單分析,生成當(dāng)天的報表文件。針對后一種系泊監(jiān)測方法,本文開發(fā)了一款水下自容式姿態(tài)監(jiān)測裝置。該裝置能夠測量在不同水深時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,從而能夠監(jiān)測更長的時間。通過實驗,本文編寫的PPP軟件的靜態(tài)定位精度達(dá)到厘米級,動態(tài)定位精度達(dá)到分米級。此外,系泊壓力監(jiān)測集成系統(tǒng)經(jīng)實驗發(fā)現(xiàn)能夠顯示、存儲和報警系泊張力的時間序列,足以彌補(bǔ)現(xiàn)有系統(tǒng)的缺陷。自容式姿態(tài)監(jiān)測裝置已在“挑戰(zhàn)號”海洋平臺錨鏈監(jiān)測中使用,取下的數(shù)據(jù)經(jīng)分析滿足系泊監(jiān)測需求。
[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)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P715;TP274

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本文編號：2016221