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由于考虑到压缩到一个WORD页面下，有些简化翻译了，有些地方不合理，哪位大大帮校正下，多谢了
海洋潮流能是一种利用价值高、潜力巨大的新能源。利用潮流能发电既经济、不占土地，也不污染环境。它具备清洁可再生的特性，在未来新能源开发利用中占据相当重要的地位。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、桩柱支撑式和座海底式。国内试验运行的潮流电站基本上采用了漂浮式结构，同时利用载体作为搭载水轮机和发电机组的工作平台。由于潮流电站需要在工作海况和恶劣海况下生存，则必须计算分析其在各种外载荷作用下的运动性能，合理设计锚泊系统，避免漂浮式电站发生倾覆的可能性。
本文以国家科技支撑项目的潮流能电站关键技术研究和示范为对象，设计一种装载竖轴直叶水轮机，锚泊于近海域的双体潮流船，并对其进行基本的选型、稳性和运动响应的分析计算和锚泊系统的方案设计。
本文首先根据船舶设计软件MAXSURF建模并计算了潮流船的浮性和稳定性。然后基于三维频域势流理论，应用HARP前期水动力处理软件WAMIT计算了双体船携带近似简化的水轮机在规则波中所受到的波浪力及其在波浪中的运动。根据发电船工作海域特点和潮流船本身的因素，设计了几种锚泊线方案，根据计算优化选取一种最优型。同时利用先进的HARP软件对整个系泊进行时域耦合动力分析，给出不同工况下的锚泊线的应力值和运动响应。最后基于工作海域海床的状况和系泊性能要求，选取合理的抓力锚。
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Tidal power is a kind of flesh energy with high value and potential in use. It’s has many advantages using tidal power to generate electricity, such as economic, not occupying lands, not polluting environment. Tidal power possesses excellent traits that are clean and renewable, and will play an important role in the future new energy. Nowadays, at home and abroad, the already running stations have different forms, which are floating structures, seabed piled structures and sit seabed structures. In China, the existing tidal power stations mainly take the floating structures, which act like a platform served the water turbine and the generator. To ensure the station working well under normal and terrible conditions, it’s very important to analyze the platform movement going with environment forces, and design a feat mooring system.
The design in this thesis is a National Key Technology R&D Program project about tidal representative technology. We give a thought and some predictions on tidal catamaran.
In this paper, the stability of tidal catamaran is calculated by the MAXSURF which is famous shipbuilding software. Base on the 3-D potential theory,
the motions and wave forces in regular waves are calculated using one module of HARP software named WAMIT. In order to ensure the safety of the tidal catamaran, it is very important to get out a reliable method to design the mooring system, and four schemes for mooring lines are presented. At last we choose the best one. According to HARP, we give the forces and the result of movement about different mooring lines using time domain analysis under different conditions. Finally, we select anchor base on seabed and berthing factors. |
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发表于 2008-10-7 18:50
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