海上风机吊装作业船全船.doc

约92页DOC格式手机打开展开

海上风机吊装作业船全船,摘要风力发电是世界上发展最快的绿色能源技术,也是我国能源发展战略的重点。海上风能具有资源丰富、风速大、风向稳定、不占用土地资源、环境影响小等优点,且海上风电场距离需大量消耗电能的沿海工业城市很近,是一种已经具备大规模工业开发条件的绿色能源。目前欧美海上风电场已处于大规模开发前夕,欧洲国家率先兴建了大型海上风电场。风电机...
编号:20-209100大小:6.62M
分类: 论文>机械工业论文

内容介绍

此文档由会员 违规屏蔽12 发布

摘 要
风力发电是世界上发展最快的绿色能源技术,也是我国能源发展战略的重点。海上风能具有资源丰富、风速大、风向稳定、不占用土地资源、环境影响小等优点,且海上风电场距离需大量消耗电能的沿海工业城市很近,是一种已经具备大规模工业开发条件的绿色能源。目前欧美海上风电场已处于大规模开发前夕,欧洲国家率先兴建了大型海上风电场。
风电机组的安装是海上风电场建设的关键技术之一。如何打造一个能够在海洋环境中风浪流共同作用下高效、安全地完成风机吊装作业的海上工作平台,是各国海上风电场建设的重要课题。自航自升式海上风机吊装作业船是海上风电场建设的第三代吊装平台,具备自航、自升、运输、起重等复合功能,工作效率高,综合效益也高,将成为海上风电场建设主流装备。这种新型船舶具有升降桩腿、大起重量的吊机、较大的甲板荷载,长深比和宽深比均已超出现行规范要求,目前国内尚无专门规范可用于直接指导该船型的设计,故对其进行全船有限元分析工作具有必要性。
本文首先开展了对国内外海上风电场发展情况、海上风电机组安装技术的演变、海上风机吊装作业船及运输吊装方式发展情况的研究,运用UG软件对风机船的两种起吊方式进行动画仿真模拟;并在本船设计方案的基础上开展了该船型的结构规范设计和全船有限元分析工作。
该船船体结构主要按CCS《钢质海船船舶入级与建造规范》,并部分参照《钢质内河船舶建造规范》进行了结构规范设计;结合该船的布置情况、线型特征和结构特点,完成了全船有限元模型的建立工作;通过该船的运输、安装等不同作业状况的分析,确定了十种计算工况,分析并计算了该船在航行、起吊等多种状态下所受的各种载荷;通过对该船在典型工况下的应力进行计算和分析,得到了全船详细应力分布、变形情况和本船应力最危险的工况与状态,以及本船在桩腿、吊机基座处等重要位置和主要结构的应力情况。在此基础上,对船体结构的强度进行评估,根据评估对高应力区域船体结构进行了改进,降低了全船最大应力值。本文所获得的一些结论,对该船型的设计具有一定的参考价值,以期对今后国内该船型的后续研究能有一些参考作用。

关键词:海上风电;海上风机吊装作业船;结构设计;有限元分析;


Abstract
Wind power is the world's fastest-growing green energy technology, and also the focus of China's energy development strategy. Gaining the advantages of abundant resources, high wind speed, stability of wind direction, not occupation of land resources, less environmental impact, etc., and the offshore wind farms being very close to the coastal industrial cities which need to consume a lot of energy, offshore wind energy is a green energy which has conditions to start large-scale industrial development. And it is the first time European countries have built a large-scale offshore wind farm.
Installation of wind turbine is an important part in offshore wind farm construction. How to build a working platform to complete lifting operations of offshore wind turbine efficiently and safely in the marine environment is an important issue to all countries among construction of offshore wind farms. Self-propelled and self-lifting vessel of offshore wind turbine is the third generation of lifting platform in offshore wind farm’s construction which enjoys combined functions of self-propelled, self-rise, transportation, lifting and so on, high efficiency, high overall efficiency and it will be main equipment in offshore wind farm construction.The new ship has a self-elevating leg, a lifting device, a large crane of the weight and a larger deck loads, L/D and B/D have been beyond the current regulatory requirements. Currently there is no special specification that can be used to directly guide the ship's design. Therefore, it is of great necessity to do the finite element analysis of the whole ship . I began my paper with research in national and international development of offshore wind farm, the evolution of technology of offshore wind turbine installation and the development of offshore wind turbine lifting ships and methods of transport of lifting. I have made use of UG software to animatedly simulate the two ways fan ships lift. What’s more,I have done the finite element analysis of structural specifications of design of the whole ship on the basis of the ship design. The body of this ship being structured by standard design specifications of CCS, I completed the establishment of finite element model, determined ten calculations after analyzing different operating conditions of transportation and installation, analyzed and calculated kinds of loads, got stress distribution, deformation and stress capacity when sufferring a variety of loads. On this basis, I assessed the strength of ship structure, improved high stress areas and reduced the maximum stress value of the whole ship. Some of my conclusions can help the design of the ship as well as future domestic follow-up study of the ship.
Key words: offshore wind power generation; offshore wind turbine installation vessel; structure design; finite element analysis;


目 录
摘 要 I
Abstract II
目 录 III
Contents VII
第一章 绪 论 1
1.1 引 言 1
1.1.1 国外海上风电发展概况 1
1.1.2 国内海上风电发展概况 2
1.2 海上风电场的构成 2
1.2.1 风电机组的构成 2
1.2.2 风力发电机组的开发 5
1.2.3 风电场工作原理 5
1...