摘要随着世界人口的增加，人类对石油的需求量逐渐增长，所以人类的生存空间逐渐向海洋与空中拓展。众所周知，海洋中蕴藏着丰富的矿产资源和生活资源，可用来开采供人类使用，包括石油资源、矿产资源、化工资源、食品资源等，海洋是二十一世纪人类发展必须要深入开发的领域。把视线放在深海开发时，开采资源的浮式平台的定位和固定则需依赖系泊系统。系泊系统也是对平台是极其重要的，77119

本文是在SESAM软件中建立半潜式平台模型，以及系泊系统的模型。在系泊系统的动态响应分析时，我们假设了7种典型的工况，在SESAM中对平台运动进行计算，并对系泊结构动力响应特点和应力的变化特点进行研究，在此基础上加以拓展，比如当系泊缆发生局部断裂时半潜式平台的情况。由所得结果分析，该系缆张力与半潜式的运动符合使用上的要求，风、浪、流等因素都会影响到系泊系统和平台。因此，保证动力性能、动力系统的完整性都十分的重要。

毕业论文关键词：半潜式平台；系泊系统；SESAM；动态响应分析

Abstract With the increase of the world's population, the demand for oil is increasing, so the human living space is gradually expanding into the sea and the air。 As is known to all, the ocean contains rich mineral resources and living resources, can be used to mine for human use, including petroleum resources, mineral resources, chemical resources, food resources, the ocean is the 21st century human development must be further development of the field。 When the line of sight is developed in the deep sea, the positioning and fixing of the floating platform of the mining resources need to be dependent on the mooring system。 Mooring system is also very important to the platform,

In this paper, a semi submersible platform model is built in SESAM software, and the model of mooring system is established。 In analyzing the dynamic response of the mooring system, we assume that the seven kinds of typical working conditions。 In the SESAM in the movement of platform are calculated, and the mooring structure dynamic response characteristics and force variation characteristics were studied。 Based on developing, such as semi submersible platform for local fracture occurred in the mooring lines。 Based on the analysis of the results, the tension of the mooring line and the movement of the semi submersible are in accordance with the requirements of the use, and the wind, wave, flow and other factors will affect the mooring system and the platform。 Therefore, it is very important to guarantee the 

integrity of the dynamic performance and the power system。

Keyword:Semi；Mooring system；SESAM；Dynamic response analysis

目  录

第一章  绪论 1

1。1 研究工作的目的与意义 1

1。2 海洋结构系泊系统介绍 2

1。2。1 动态响应分析在海洋结构系泊系统中的作用 2

1。3 当前浮式结构物系泊系统的主要发展特点和趋势 3

1。4 当前水动力学的主要发展特点和趋势 3

1。5 研究目标及论文主要内容 3

1。6 研究方案 4

1。7 小结 4

第二章  动力响应基本理论 6

2。1 波浪力计算理论 6

2。1。1 粘性效应和势流效应 6

2。1。2 半潜式平台水动力性能研究的方式