海洋平台系泊系统监测与装置研究

发布时间：2018-06-14 00:34

本文选题：海洋平台 + PPP　；参考：《大连理工大学》2015年硕士论文

【摘要】：海洋环境的复杂性和不确定性易对海洋平台的结构造成不利影响,对平台的安全运营形成隐患。为了保障平台的安全作业,优化平台结构设计,因而需要对海洋平台进行长时间的原型监测。本文以南海流花海域的“挑战号”海洋平台为对象,研究了半潜式海洋平台原型监测技术,其中着重研究了系泊定位系统的监测测量技术。由于海洋平台浮体与系泊系统的强耦合,浮体的位置与运动影响着系泊系统的受力。由于“挑战号”海洋平台没有固定基站,平台定位是利用星际差分GPS进行定位测量,精度只能达到2分米,且需要支付昂贵的服务费。本文提出利用精密单点定位(PPP)技术监测海洋平台的位移,并总结了PPP技术的难点与要点,编写了静态定位精度达到厘米级的PPP软件。海洋平台系泊受力监测有两种方法,一种是直接通过压力传感器测量系泊锚链的水平回复力,一种是通过测量系泊锚链的姿态间接通过计算求得锚链受到的力。在“挑战号”海洋平台上前一种方式测量的系统有着诸多的缺陷,为了弥补这些缺陷,本文跟据“挑战号”实际情况开发了一套系泊受力的集成系统,该系统能够存储长期监测的锚链受力数据,并能够对数据进行简单分析,生成当天的报表文件。针对后一种系泊监测方法,本文开发了一款水下自容式姿态监测装置。该装置能够测量在不同水深时的系泊的加速度与倾斜角度,从而间接求得系泊的受力。该装置分别在硬件和软件上进行省电优化设计,从而能够监测更长的时间。通过实验,本文编写的PPP软件的静态定位精度达到厘米级,动态定位精度达到分米级。此外,系泊压力监测集成系统经实验发现能够显示、存储和报警系泊张力的时间序列,足以弥补现有系统的缺陷。自容式姿态监测装置已在“挑战号”海洋平台锚链监测中使用,取下的数据经分析满足系泊监测需求。
[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.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P715;TP274

【参考文献】