【作者】 张进；

【导师】 李凤来；

【作者基本信息】 哈尔滨工程大学 ， 船舶与海洋结构物设计制造， 2011， 硕士

【摘要】 进入21世纪以来,能源与环境问题成为当前世界上必须首先考虑的问题,世界各国越来越注重开发、利用新能源,都积极地投入到开发低碳排放的清洁能源中。海洋潮流能是一种清洁的可再生能源,其利用价值高,且潜力巨大。在能源不断发展的21世纪,潮流能必将占有重要的地位。因此,开发利用潮流能已经成为我国,乃至于全世界关注的焦点。我国拥有相当长的海岸线,其中蕴含着丰富的海洋资源,开发利用海洋能源已成为我国首要任务。目前,国内外已经建成的示范运行的潮流电站,其基本结构形式有漂浮式、悬浮式、桩柱支撑式和座海底式,选取特殊载体作为搭载水轮机和发电机组的工作平台。本文以国家科技支撑项目合同指标为设计目标,以拟定的山东荣成海域测量的水文资料为依据,设计一种矩形龙门式水轮机承载平台,装机容量为150kW的潮流电站。文章所展开的工作是对潮流电站承载平台大型化设计的一种探索,以期得出的结论对该子项目的设计研究工作提供一定的技术支持和对比价值参考。本文首先提出了平台型式的设计方案,绘制了总布置图,根据要求初步确定了平台主尺度,并进行了平台重量重心及排水量的估算。准确预报平台载荷是平台结构校核的重要部分,本文首先根据规范计算了平台的环境载荷,然后使用基于动量定理的流管法计算水轮机工作状态下产生的载荷和力矩,最后使用Patran有限元软件进行结构分析,进行强度校核。最后,本文基于锚泊系统的静力分析方法,根据锚泊线的长度和布置角度的不同提出了几种锚泊线方案,并根据其受力特点,得出最优方案。更多还原

【Abstract】 Since the 21st century, energy and environment issues have been the problem which must be considered in the current world. More and more country have been focus on the development of new energy resources around world, and positively putted into the development of clean energy with the features of low-carbon emission. Ocean current energy is a kind of clean renewable energy with high value and great potential. In the new century, the energy has continuous developed. Tidal current energy must play an important role, so the development and exploitation of tidal current energy has become the focus of attention in our country even all the world. China has quite a long coastline which contains rich marine resources, so development and exploitation of ocean energy has become our most important task.At present, model running tidal current stations which have been built in the world have several basic forms, which are floating structures, suspended structures, seabed piled structures and sit seabed structures, meanwhile it selects a special carrier as a working platform for turbine and generating units. This paper is based on the National Key Technology Research and Development project about current station contract index and according as hydrological information about Rongcheng sea area, to design a rectangle frame turbine carrier platform, installed capacity of 150KW station. The work in this paper is one kind of exploration about carrier platform for large-scale, and conclusion reached to provide technical sustain and contrast value reference to this project of design and research.This paper proposed platform type of design program first, draw general arrangement plan, determined platform principal dimensions according to the requirement, and estimated platform with weight, center of gravity, displacement. Accurately forecasting the platform’ load play an important role in platform structural check. The paper first calculates environment’s load as criterions. Then turbine’s load and moments are based on momentum theory and stream tube method calculated. Paper is base on the static analysis method for the mooring system. According to the different length and angle of mooring lines, it proposed several kinds of schemes about mooring lines. Finally the paper will get the optimized one as mechanical characteristics.更多还原