【作者】 何迪；

【导师】 柳存根；

【作者基本信息】 上海交通大学 ， 船舶与海洋结构物设计制造， 2012， 硕士

【摘要】 船舶行业是我国国防建设和国民经济建设的重要支柱产业,近年来我国造船总产量连续两年位居世界首位,跻身造船大国的行列。但我国造船企业在生产管理技术上,如生产计划规划、造船工期控制、生产调度管理等仍与日、韩造船企业有较大的差距。船厂的生产计划不能直观反映生产进度变化,缺乏信息反馈;物料、设备、人员分配难以达到最优化;调度管理水平低,生产效率低,建造周期难以控制等问题严重阻碍了我国向造船强国迈进的步伐。虚拟制造是数字化造船系统中一种重要的生产辅助技术,利用虚拟仿真,能够在不消耗任何实际生产资源的情况下,模拟船舶建造全过程,预测生产计划的合理性和有效性,辅助提高生产管理能力,促进流程创新和工艺创新,帮助管理人员做出前瞻性的决策和调度优化实施方案。本文以DELMIA软件系统为平台,以国内某大型船舶生产基地为研究对象,做了以下主要工作:1、通过对离散式生产系统和仿真系统的研究,参考现行工艺仿真和生产线仿真的经验,提出对船厂全厂进行生产过程三维仿真的生产计划的建模方法,以中间产品为核心对象,由顶层大节点计划逐步向下,通过分解各级中间产品,建立工艺工序流程的树型图。2、对生产现场进行实地考察,调研该造船基地厂区、车间、场地设备的布局,还包括造船生产流程、生产计划安排和工艺细节过程,最终在软件平台上建立该造船基地全厂区的物理模型,并针对大型生产区域的关键建模技术进行了研究,包括模型的快速建模、模型的优化等。3、根据生产计划的树形图,在软件中对生产计划中的各工艺进行数学建模,包括运动设定和时间设定等,模拟实际工艺过程中各类物理模型的运动过程,最终完成各级工序的仿真动画。为了提高仿真与现实的近似程度,对其中的关键建模技术进行了研究。4、研究并阐述了生产三维仿真对船厂生产计划规划以及生产布局优化的促进作用,提出了对以后建立数字化船厂的展望。本文借助DELMIA软件平台探索船厂生产三维仿真实现的可行性和有效性,充分证明了系统仿真技术对船舶制造技术的促进作用。更多还原

【Abstract】 The shipbuilding industry, which relates to the national defense construction and the national economy construction, is an important mainstay industry of our country. In recent two years, Chinese shipbuilding output takes the first place of the world, and China success in becoming the largest shipbuilding country. But our shipbuilding enterprises have great difference with Korea and Japan in production management, such as production planning, duration controlling, and production scheduling, etc. Lack of information feedback, the production plan cannot intuitively reflect the production schedule changes; the distribution of materials, equipment and workers is difficult to optimize; low management level of production dispatching; poor production efficiency and problems of controlling the construction cycle are seriously hinder Chinese shipbuilders to improve their productivity and management level and become the most powerful shipbuilding country.Virtual manufacturing is one of the most important auxiliary production technologies of digital shipbuilding system. Using the virtual simulation, the enterprises can consume noting actual resources, and simulate the whole process of ship construction, so to predict the rationality and validity of the production plan, to improve production management capability, to promote the innovation of process and technology, and to help the manager to make forward-looking decision and optimize scheduling implementation plan. This paper took a shipbuilding enterprise in Shanghai as the simulation object based on DELMIA software system, and carried out some concrete research work as below:1. Through the research of discrete production system and simulation system, based on the experience of current process simulation and production line simulation, and took the whole area of the enterprise into consider, the author put forward the modeling method of production plan to make the 3D process simulation of shipyard production. The method suppose that to build the process tree derivation should take the intermediate product as the core object, place the big node plans as the top, and distribute kinds of intermediate products layer by layer down.2. The author did inspect the production field about the layout of the factory including areas, workshops and equipment, also, the author did some research in the process of the shipbuilding, the arrangement of the production plan, and the equipment’s move when they are processing. Finally the author had modeled all the factory’s 3D model using DELMIA, and did research in some key technique of the modeling, including the method of fast-model and the way to optimize the model.3. Depends on the tree derivation of the production plan, the author raised a new method of plan modeling and used it to model the production plan and the manufacturing process, than simulated the detail movements of the products and resources during the process, and finally made some recordings of them. And to improve the effect of these simulations, the author had raised some methods.4. Explained the promoting function that 3D simulation of shipyard production could stimulate the plan-making and layout-optimizing progress, and put forward the prospect of digital shipyard.This paper carried out researches and explorations about the feasibility and validity of 3D simulation of shipyard production based on DELMIA software system, and fully proved the effectiveness that system simulation technology could take of stimulating the shipbuilding.更多还原