大船集团曲面自动成形设备改造方案选择研究

发布时间：2018-03-11 20:51

本文选题：曲面自动成形　切入点：项目投资机会　出处：《大连理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：2008年全球性金融危机对国际航运市场造成深远影响,作为同一产业链上的造船企业也遭受重创,出现了交船难、需求变更、撤销订单等种种状况,外需明显减弱。外需减弱,国内投资需求放缓,而此时的世界造船能力已经急剧膨胀,在巨大的生存压力下,船厂之间针对非常有限的订单展开了异常激烈的价格竞争,各主要船型的市场价格甚至低于成本价。船舶市场的恶意竞争、船东日益严格的检验、以及市场需求结构的变化都给大连船舶重工集团有限公司(以下简称大船集团)带来较大影响。2012年,大船集团的生产节奏明显放缓,主要经济指标在2013年首次出现负增长。创新驱动是造船业持续发展的根本出路,船东需求则是造船企业创新驱动发展的风向标。大船集团因此提出“大力加强技术创新,改变人力密集型建造方式,不断提高产品质量水平；缩短船舶建造周期,提高企业快速响应市场变化的能力,不断降低产品成本”。2013年,在国家863项目支持下,大船集团联合大连理工大学、江苏科技大学和机科发展科技股份有限公司(以下简称机科发展有限公司)以及北京中电华强焊接工程技术有限公司(以下简称中电华强),以大型舰船机舱、艏、艉和过渡段的曲面分段建造为对象,以提升大型船舶曲面分段的制造能力、质量、效率为目标,开展曲面自动成形设备改造方案的选择研究,并应用于曲面自动成形装备制造,为提升我国大型舰船曲面分段制造工艺与装备的自动化水平,增强我国造船行业的核心竞争力,实现现代造船、绿色造船提供技术与装备支撑。本文针对大船集团的曲面自动成形设备改造方案,从需求趋势、波特五力模型的角度分析市场吸引力,利用PEST模型从政治、经济、技术、社会文化等方面分析产业发展环境,从技术优势、人力优势、资金优势方面进行企业内部环境分析,进而预判该项目对于企业来说是否是一次正确的投资机会。最后,借鉴价值工程理论,本文对大船集团投资的2种改造方案,即：水火弯自动化加工设备(热弯技术)、船板多点成形设备(冷弯技术)与传统的手工焊接工艺进行比较,基于企业的战略目标、科技项目评价指标和市场的需求趋势确定功能评价要素,采用专家评价法确定各个功能重要度系数及各个方案的评分值,最终基于价值系数确定投资方案。
[Abstract]:In 2008, the global financial crisis had a profound impact on the international shipping market. Shipbuilding enterprises in the same industrial chain also suffered heavy losses, resulting in difficulties in shipping delivery, changes in demand, cancellation of orders, and so on, resulting in a marked weakening of external demand. Demand for domestic investment has slowed, and at a time when the world's shipbuilding capacity has ballooned, under enormous pressure of survival, there is an unusually fierce price competition between shipyards for very limited orders. The market prices of the major ship types are even lower than the cost price. The changes in the structure of market demand have greatly affected the Dalian Shipbuilding heavy Industry Group Co., Ltd. In 2012, the pace of production of the Dalian Shipbuilding Group slowed down markedly. In 2013, the main economic indicators showed negative growth for the first time. Innovation driving is the fundamental way out for the shipbuilding industry's sustainable development, and shipowners' demand is the wind vane for shipbuilding enterprises' innovation-driven development. Changing labour-intensive construction methods, continuously improving product quality, shortening ship construction cycles, improving enterprises' ability to respond quickly to market changes, and continuously reducing product costs. "in 2013, with the support of the National 863 Project, Dacheng Group United with Dalian University of Technology, Jiangsu University of Science and Technology and Science and Technology Development Co., Ltd. (hereinafter referred to as engine Development Co., Ltd) and Beijing China Light and Power Huaqiang Welding Engineering Technology Co., Ltd. In order to improve the manufacturing capability, quality and efficiency of the curved surface segment of the large ship, the research on the selection of the modification scheme of the curved surface automatic forming equipment is carried out and applied to the manufacture of the automatic forming equipment of the curved surface. In order to improve the automation level of manufacturing technology and equipment of large ship curved surface in China, enhance the core competitiveness of shipbuilding industry in China, realize modern shipbuilding, Green shipbuilding provides technical and equipment support. This paper analyzes the market attractiveness from the point of view of demand trend, Porter's five-force model, and makes use of PEST model to analyze the political, economic and technical aspects of the transformation scheme of curved surface automatic forming equipment of the large Shipbuilding Group. Social and cultural aspects such as the analysis of the industrial development environment, from the technical advantage, manpower advantage, capital advantage analysis of the internal environment of the enterprise, and then predict whether the project is a correct investment opportunities for the enterprise. Finally, With reference to the theory of value engineering, this paper compares the two retrofit schemes invested by large ship Group, that is, automatic processing equipment (hot bending technology), multi-point forming equipment (cold bending technology) and traditional manual welding technology. Based on the strategic objectives of the enterprise, the evaluation index of scientific and technological projects and the demand trend of the market to determine the functional evaluation elements, the expert evaluation method is used to determine the coefficient of each function importance and the scoring value of each project. Finally, the investment scheme is determined based on the value coefficient.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：F426.471

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