【作者】 李楷；

【导师】 林焰； 陈明；

【作者基本信息】 大连理工大学 ， 船舶与海洋结构物设计制造， 2011， 博士

【摘要】 在21世纪的全球化市场竞争中,所有的企业都面临着诸多挑战,企业必须快速、有效地与世界范围内的客户、制造商、分销商和供应商传递和共享产品信息。在这方面,产品生命周期管理技术已经体现出不可替代的优越性,而且在批量制造业得到了广泛的应用。但由于船舶行业的特殊性,船体生命周期管理不能直接应用这些行业的PLM解决方案。近年来,船东要求设计建造部门能提供更加快速的响应,主管当局制定了提高船舶安全营运能力的政策,船级社、船东也在不断提高船舶管理的水平,在这些需求的推动下,相关各方开始了船体生命周期管理研究。船体生命周期管理,作为行业战略方案,它能够改变目前生命周期内各企业的业务模式,将各企业的计算机应用系统集成起来,使得全部在船舶生命周期内进行数据处理、业务决策和活动控制的系统实现互联,能够打破生命周期内各成员的隔离,增强各企业之间的协同。作为应用软件系统,是以船体生命周期建模为基础,以船体生命周期管理模型集成为核心,对船体生命周期内各阶段的数据处理操作进行管理,是面向数据集成、知识库管理和流程优化的一种信息系统。本文围绕船体生命周期建模与管理,首先研究了船体生命周期的概念和内涵,分析了船体生命周期各阶段业务活动的模型需求,对船体生命周期建模技术进行了较深入的探讨。通过对船体结构的计算机图形表达方式的分析,提出了应用XML进行异构船体结构CAD数据交换的方法,并在两种CAD环境之间进行了验证。通过对当前主流轻量化CAD模型的功能和性能分析,提出了面向船体生命周期管理的专用轻量化CAD模型格式以及相应的建模方法。在此基础上提出了船体生命周期建模的体系结构。船体生命周期模型集成为船体生命周期管理提供组成船体信息的框架,它由多种信息化元素构成：基础技术和标准、信息生成工具、核心功能、功能性的应用接口等。以船体生命周期中的模型构成为切入点,分析了各阶段模型和各种数字化模型的主要特征,确立了生命周期内的数据流和数据之间的逻辑关系,重点研究了船体生命周期的模型集成问题。综合使用面向对象技术和参数化技术,引入知识工程和设计结构矩阵优化的理念,建立了船体生命周期模型集成应用框架,对CAD模型和CFD模型、CAD模型和FEA模型的集成进行了验证。研究了船体生命周期管理的目标及使用环境,分析了船体生命周期管理对于整个行业的核心价值。从软件开发的角度,分析了在船体生命周期管理系统开发中应注意的问题以及关键技术。基于船体生命周期建模体系结构和模型集成应用框架,结合MVC思想,建立了船体生命周期管理系统框架。分析了船体生命周期管理系统的结构及功能模块组成,围绕本文提出的技术、思想逐步展开,从核心功能模块入手,开发了轻量化船体模型浏览功能,船体生命周期业务流程管理功能,及船体生命周期业务规则管理功能。在此基础上开发了原型系统——船东管理子系统,支持船东直观地查看船体状态数据,更深入地分析船体状态,从而合理地进行业务交流,提高决策、响应的效率和科学性。基于智能移动设备,开发了移动检验支持系统,不仅提高了船体检验的数据处理能力,也提高了船体检验的安全性和便捷性。更多还原

【Abstract】 In the global market competition of 21st century, all the enterprises are facing with many different challenges, the enterprise must transfer and share product information quickly and effectively with worldwide customers, manufacturers, distributors and suppliers. In this aspect, product lifecycle management technology has reflected its irreplaceable superiority, and has been widely used in batch manufacturing industry. However due to the particularity of shipbuilding and related industries, general PLM solutions cannot be applied to ship structure. In recent years, to satisfy the requirements of speeding ship owner response in design and construction, improving operation safety and upgrading the management ability, many organizations started the study on ship hull lifecycle management.As industry strategy plan, ship structure lifecycle management can change the current business pattern of each enterprise on the information chain, integrate the computer applications of each enterprise, and enable all the systems that process data operation, business decision and activity control can be interconnected, eliminate the segregation between enterprises, and enhance the collaboration between them. As application software system, ship structure lifecycle management is mainly to control and manage data processing in each stage of ship structure lifecycle based on ship structure lifecycle modeling and integration, which is a information system oriented to data integration, knowledge base management and process optimization.This paper firstly studied the concept and connotation of ship structure lifecycle, analyzed the model requirement of business in each stage of whole lifecycle, and investigated the modeling technology of ship structure lifecycle modeling.By analyzing the means of expressing graphics of ship structure in computer system, it proposed the method of heterogeneous CAX data exchange using XML, which was illustrated between two different CAD systems. By studying the functions and the performance of current lightweight CAD model formats, it developed the specialized lightweight CAD model for ship structure lifecycle management, and presented the related modeling method. It proposed the framework of ship structure lifecycle modeling based on the research of modeling technology.Ship structure lifecycle model integration provide the information framework for ship structure lifecycle management, which consists of many information elements as basic technology and standards, information generation tool, kernel functions and application interfaces.Starting with the study on the composition of ship structure lifecycle model, it analyzed each stage model and each type of digital model, established the data flow and logical relationship, and concentrated on the model integration. It introduced the concept of knowledge engineering and design structure matrix optimization, built the framework of ship structure lifecycle model integration based on the combination between object-oriented technology and parametric method. It was demonstrated of the CAD-CFD integration and CAD-FEA integration.It studied the meaning and implementation environment of ship structure lifecycle management, analyzed the kernel value of ship structure lifecycle management for the whole industry. From the view of software development, it analyzed the key technologies and pivotal problems for the development of ship structure lifecycle management system. It built the framework of ship structure lifecycle management system using MVC concept, based on the framework of ship structure lifecycle modeling and that of ship structure lifecycle model integration.It finally analyzed the architecture and basic function modules of ship structure lifecycle management system, and developed the function of browsing lightweight model of ship structure, the function of managing business flows in ship structure lifecycle, and the function of managing business rules in ship structure lifecycle. On that basis it developed ship owner management subsustem as prototype system, which can help ship owner view ship structure condition data more directly, make analysis more deeply and corporate more efficiently, and then improve the decision and response. It also developed mobile inspection support system based on intelligent mobile device, which not only enhance the ability of processing inspection data, but also improve the safety and convenience.更多还原