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海缆船定位系统设计
Positioning system design of cable-laying vessel
毛建辉, 尉志源
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作者单位:中国船舶及海洋工程设计研究院, 上海 200011
中文关键字:海缆船;锚泊定位;动力定位;海缆埋设;海缆维修
英文关键字:cable-laying vessel; mooring positioning; dynamic positioning; cable laying; cable repairing
中文摘要:随着风力发电技术日趋成熟,我国沿海风电场的装机容量和规模也越来越大。近年来,作为风电场建设配套作业的海缆船越来越受到业界关注。为了满足海缆埋设和维修接续作业的需要,现代海缆船普遍都配置了定位系统。本文以某5 000 t海缆船为例,通过对高流速海况条件下的环境力计算分析,以及沿设定路由布缆和定点维修接续作业的特殊要求,介绍了该船配置的8点锚泊定位系统、动力定位DP-1系统,以及牵引绞车系统的设计。通过计算在不同海况条件下的几种定位系统的定位能力,了解海缆船的定位系统应根据不同作业需求以及海况条件,综合考虑造价预算、工程周期等,选择合理可行的形式。与常规远洋海缆船不同,通过采用横向布缆作业形式,可以有效降低定位系统配置。甲板上配置的柴油机直接驱动悬挂式全回转舵桨的动力定位方案,为海洋工程作业船增加动力定位系统的改造提供新的解决方案。
英文摘要:With the maturity of wind power generation technology, the installed capacity and scale of coastal wind farms in China are also growing. In recent years, as a complementary operation of wind farm construction, cable-laying vessels have attracted more and more attention of the industry. In order to meet the needs of submarine cable laying and maintenance, modern cable-laying vessels are generally equipped with positioning systems. Taking a 5000t cable-laying vessel as an example, this paper introduces the 8-point mooring positioning system, dynamic positioning DP-1 system and the design of traction winch system by calculating and analyzing the environmental forces under high-speed sea conditions and the special requirements of route laying and fix-point maintenance. By calculating the positioning capability of several positioning systems under different sea conditions, readers can understand that the positioning system of cable-laying vessels should select reasonable and feasible forms according to different operational requirements and sea conditions, taking into account the cost budget, project cycle and so on. Unlike the conventional ocean-going cable-laying vessel, the configuration of positioning system can be effectively reduced by using lateral cable laying operation. Through the dynamic positioning scheme of diesel engine directly driving suspended full rotary rudder propeller on deck, a new solution is provided for the modification of adding dynamic positioning system to ocean engineering operation ship.
2020,42(2): 170-175 收稿日期:2019-07-17
DOI:10.3404/j.issn.1672-7649.2020.02.033
分类号:U674
作者简介:毛建辉(1977-),男,高级工程师,研究方向为船舶及海洋工程总体设计
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