船舶加长改造关键阶段工艺研究

发布时间：2018-07-10 18:33

本文选题：船舶加长改造 + 工艺方案　；参考：《上海交通大学》2015年硕士论文

【摘要】：经历了持续几年的市场低迷,修船业要在逆流中求发展,转型改革势在必行。船舶改造工程项目近年来在修船业务中所占比例逐渐提高,特别对于货船来说,相比于完全新造出一条船舶,仅仅通过改变船舶的主尺度,如船体的加长、加宽或加深等手段来对船舶进行扩容改造,所需人力、物力及耗时都要少很多。尽管主尺度的改变,特别是对于船体货舱区域的加长改造,可能会让船体的稳性、强度等面临一定的风险,但只要采取合理的工艺方案,就可以让船东在最短时间内、利用最少投资,降低运营成本、提高效益。随着修船企业工艺技术的不断成熟,改造需求会逐渐增多。本文主要对船舶加长改造工程进行了分阶段的工艺研究。船舶加长改造通常是在平行舯体适当位置处将船体环口切割一分为二,然后将新加分段嵌入其中。本文将船舶加长改造分为三大主要工艺过程,包括新加分段的制作、船体切割分离、合拢焊接等步骤;以国内修船行业目前所具备且常用的设备设施及相对成熟的工艺技术为基础,以某集装箱船的加长改造工程为例,进行各关键阶段的工程方案对比、改造思路拓展、施工流程分析、工艺要点总结等研究工作,结合层次分析计算法以及过往施工经验,为该项目各阶段选取和编制合理的施工工艺方案及工艺流程,力求达到新旧分段的完美对接,以保证加长后的船体可以更快适应所在水域的航运条件、保证长期安全稳定地运行;同时在前文研究的基础上提出一些新工艺方案设想。希望可以通过本文给修船业在船舶加长改造工艺技术方面提供一份系统性的工艺参考,并能为今后业内同行在船舶改造工程方案的选取和研发上抛砖引玉。
[Abstract]:After several years of market downturn, ship repair industry in order to develop against the current, transformation and reform is imperative. In recent years, the proportion of ship renovation projects in ship repair business has gradually increased, especially for cargo ships, compared with a completely new ship, it is only by changing the main scale of the ship, such as the lengthening of the hull, It takes less manpower, material and time to enlarge and transform the ship by widening or deepening. Although the change of the main scale, especially the lengthening of the ship's cargo cabin area, may make the ship's stability and strength face certain risks, as long as a reasonable technological plan is adopted, the shipowner can be allowed to do so in the shortest possible time. Use the least investment, reduce operating costs, improve efficiency. With the continuous maturity of shipbuilding technology, the demand for renovation will increase gradually. In this paper, the process of ship lengthening and revamping is studied in stages. Ship lengthening is usually done by cutting the hull ring in two at the proper position of the parallel midship, and then embedding the new section in it. In this paper, the ship lengthening and transformation is divided into three main technological processes, including the manufacture of new sections, hull cutting and separation, closing welding and so on. Based on the equipment facilities and relatively mature technology of the domestic ship repair industry, and taking the lengthening and reforming project of a container ship as an example, the project schemes of each key stage are compared and the transformation ideas are expanded. Construction process analysis, key points summary and other research work, combined with the analytic hierarchy process calculation method and past construction experience, for each stage of the project to select and compile a reasonable construction process plan and process, This paper tries to achieve the perfect docking of the new and old sections in order to ensure that the lengthened hull can adapt to the shipping conditions of the water area more quickly, and ensure the long-term safe and stable operation. At the same time, some new technological schemes are put forward on the basis of the previous research. It is hoped that this paper can provide a systematic technological reference for the shipbuilding industry in the aspect of ship lengthening and revamping technology, and can be used as a reference for the selection and development of shipbuilding engineering schemes in the industry in the future.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U672.6

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