快速制造网格中全局工艺规划模块的分析与建立

基于快速制造网格平台,分析和建立了全局工艺规划模块,开发了全局工艺规划的分析工具包。该模块可以完成各种加工任务的全局工艺规划分析,确定每个任务的类别和全局工艺流程,实现任务分析的模块化。结合快速制造网格的应用实例发现,在实际运用中,全局工艺规划模块完全能够满足全局工艺规划分析的要求,对全局工艺规划决策具有重要的指导意义,验证了该模块的合理性与可行性。     

[学科发展]新一代信息技术驱动的制造服务管理:研究现状与展望

随着新一代信息技术（New IT）在制造领域的渗透应用和融合发展,一系列面向服务的制造系统/平台相继被提出,它们都旨在通过制造服务实现分布式制造资源的跨企业按需共享和协作使用。制造服务管理,是应用推广这些系统/平台所需解决的关键问题之一。鉴于此,分析了New IT对制造协作及其相应制造服务管理模式发展的影响;阐述了基于平台的制造服务管理当前研究进展;考虑New IT的作用与影响,总结了制造服务管理相关未来研究问题。     

制造资源共享技术研究

为实现企业间的制造资源共享,提出了制造资源共享模型;分析了集中式、分布式和集中分布式制造资源共享体系结构,提出了以区域网络化制造平台、重点城市制造业信息化应用服务提供商平台和企业制造资源共享管理系统为主体的三级制造资源共享模式.在该共享模式中,由制造资源服务总线集成三个共享主体.在此基础上,开发了制造资源共享系统,并介绍了该系统在四川省制造业信息化工程中的应用.     

面向服务架构的敏捷制造及关键技术

首先研究敏捷制造及动态联盟等现代制造模式,分析了敏捷制造的内涵和面向服务的技术基础,利用面向服务的架构、业务流程管理和Web服务等相关的标准和技术构建了企业业务集成服务平台。在此基础上提出面向服务架构敏捷制造的4个关键技术,如企业应用体系结构、产品数据交换平台、请求服务平台、生产计划与动态调度。     

Object-oriented approach of MCTPN for modelling Flexible manufacturing systems

Manufacturing industry is facing a stricter challenge than ever before owing to the rapid change in market requirements. Flexible manufacturing systems (FMSs) have a much greater capability than traditional fixed-type production systems for coping with the rapid change. In this paper, a modified coloured-timed Petri net (MCTPN) is developed to model the dynamic activities in an FMS. The MCTPN provides an object-oriented and modular method of modelling manufacturing activities. It includes colour, time, modular and communication attributes. The features of object-oriented modelling allow the FMS to be modelled with the properties of classes, objects, and container trees. Since the system activities can be encapsulated and modularised by the proposed MCTPN, the manufacturing systems can be easily constructed and investigated by the system developers. It makes the concept of software IC possible for modelling complex FMSs. Once all of the MCTPN objects are well defined, the developers need to consider only the interfaces and operations relating to the MCTPN objects. In order to demonstrate the capability of the proposed MCTPN, the FMS in the Manufacturing Automation Technology Research Center (MATRC) of the National Taiwan University will be stimulated and justified by using the proposed MCTPN along with the G2 expert system.     

区域制造业信息化ASP平台及其应用实践

将区域制造业信息化工程和ASP模式相结合，提出了区域性制造业信息化ASP平台模式；建立了平台的6层体系结构模型，并提出了针对区域制造业信息化的专门功能系统；进行了重庆市制造业信息化ASP平台的开发和应用。     

ARCHITECTURE OF MANUFACTURING EXECUTION SYSTEM IN THE EXTENDED ENTERPRISE

0 INTRODUCTION*Because of rapid advances in technology, product life cycles are growing shorter. An enterprise's ability to deliver new products quickly and efficiently to market is critical for competitive success. In response to global economic competition, enterprises must be flexible in adapting to changing market demands and must adopt effective management practices and strategies. For many years, manufacturers have been motivated to explore many exciting innovations in their busines…     

网络制造环境下面向复杂零件的协同制造链研究

为了实现网络制造环境下制造资源的共享与优化配置，提出了面向复杂零件的协同制造链的概念，分析了协同制造链的特点。通过对某航空发动机关键零件制造过程的分析，详细论述了协同制造链的生成与演化过程，提出了一种基于蚂蚁算法的组合优化求解策略，有效地解决了协同制造链优化配置问题。最后，基于网络协同制造平台实现了协同制造链的构建与运行。     

基于MapReduce和多目标蚁群算法的制造云服务动态选择算法

基于云计算技术和云服务技术研究了云服务的动态选择问题,给出了云制造服务层次化模型,提出了一种基于MapReduce和多目标蚁群算法的制造云服务动态选择算法(CSSMA)。依据CSSMA设计了多目标蚁群算法、Map函数、Reduce函数和优化策略等,并将其分布式并行运行于制造云平台中。仿真实验结果表明:CSSMA具备良好的处理大规模问题的能力,适用于制造云服务动态选择问题的求解。     

配用电云平台分布式实时数据处理技术研究

为解决配电网云平台大规模实时数据的处理问题,设计了一种分布式实时数据处理方法。集群分布式实时数据库可实现海量数据的分布式存储,而且具有统一访问和管理功能。提出了一种新型分布式SCADA系统,进一步提高实时数据的分布式处理能力。给出了新型分布式SCADA系统架构,包括基础设施、分布式资源与任务处理、分布式实时数据处理、分布式数据处理。在云计算环境下,讨论了弹性事件队列和弹性应用框架等关键技术,系统地建立同云计算相适应框架,全面提升系统的数据采集、存储、分析、计算、扩展等能力。     

制造装备全寿命周期信息系统研究与实现

制造装备信息化水平直接关系到企业的制造效率和效益。结合大型制造企业的实际,从制造装备需求、设计、订货、采购、制造、安装、使用、修理、改造直至报废等全寿命周期管理需求出发,进行集成创新研究。提出了基于价值链优化的现代制造装备管理模式,树立了制造装备系统是"企业核心竞争力"的新观念,运用Petri网技术改造了原系统结构和业务流程,建立了制造装备信息分类及编码标准体系,研发了基于B/S架构、面向过程决策、分布式模块化、协同工作与信息交互的制造装备全寿命周期信息系统(MELS)。该系统经实际应用,取得了良好的效果,推进了工业企业信息化水平向深层次发展。     

面向服务架构的敏捷制造及关键技术

首先研究敏捷制造及动态联盟等现代制造模式,分析了敏捷制造的内涵和面向服务的技术基础,利用面向服务的架构、业务流程管理和Web服务等相关的标准和技术构建了企业业务集成服务平台.在此基础上提出面向服务架构敏捷制造的4个关键技术,如企业应用体系结构、产品数据交换平台、请求服务平台、生产计划与动态调度.     

拟实制造技术及其应用

虚拟现实(VR)是一门正在发展的高新技术,它允许用户在一个采用计算机生成的三维动态虚拟环境中活动或与之相互作用。拟实制造(VM)是VR技术在制造领域的发展及应用,是敏捷制造的关键技术之一,它将与制造有关的各项技术集成在一个共同的平台上。本文介绍了拟实制造的概念、特征、所需技术及其在先进制造技术上的应用实例。     

敏捷网络化集成制造平台的研究与实现

为了迅速响应市场需求的变化，快速地开发、设计和制造产品，提出了一种网络化制造的新模式——敏捷网络化集成制造(ANIM)。设计了敏捷网络化制造集成平台的运行策略和框架；分析了平台的目标、功能和关键技术；通过建立原型系统，实践并验证了敏捷网络化制造系统中的若干理论和实现技术。     

A new manufacturing resource allocation method for supply chain optimization using extended genetic algorithm

In distributed manufacturing environments, the real competitive edge of an enterprise is directly related to the optimization level of its supply chain deployment in general, and, in particular, to how it allocates diverse manufacturing resources optimally. This is faced with increasing challenges caused by the conflicting objectives in manufacturing integration over distributed manufacturing resources. This paper presents a new manufacturing resource allocation method using extended genetic algorithm (GA) to support the multi-objective decision-making optimization for supply chain deployment. A new multi-objective decision-making mathematical model is proposed to evaluate, select, and sequence the candidate manufacturing resources allocated to sub-tasks composing the supply chain, by dealing with the trade-offs among multiple objectives including similarity, time, cost, quality, and service. An extended GA approach with problem-specific two-dimensional representation scheme, selection operator, crossover operator, and mutation operator is proposed to solve the mathematical model optimally by designing a chromosome containing two kinds of information, i.e., resource selection and resource sequencing. A case study is carried out to demonstrate the effectiveness and efficiency of the proposed approach.     

网络化制造与制造网络

分析了在当前制造全球化趋势下网络化制造系统的一些基本特征，介绍了网络化制造的基本概念及其解释，并给出一个由企业用户与网络化制造集成平台组成的网络化制造体系结构。结合当前制造业发展的趋势，着重提出了结合网格技术的制造网络的概念，描述了制造网络区别于传统Internet的一些特征。对网格技术与制造业的结合进行了研究，提出了构建于网格之上的制造网络的体系结构。根据制造网络的特性需求，提出了一种以网格技术为基础，建立在多代理系统协调控制框架与支撑工具基础上的制造网络的功能体系结构。     

Agent- and CORBA-Based Application Integration Platform for an Agile Manufacturing Environment

A new application integration platform for an agile manufacturing environment is presented, which is based on agent and common request broker architecture (CORBA). CORBA enhances the system integration because it is an industry-standard for interoperable, distributed objects across heterogeneous hardware and software platforms. Agent technology is used to improve the intelligence of the integration system. The platform is open, distributed, and modular to enable the user to adapt its content to his requirements. This application integration platform supports the goals of agile manufacturing: rapid response to changing requirements, reduction in both time and cost of the product realisation process, and integration within a heterogeneous, wide-area-networked enterprise. In order to implement the application integration platform, we use a network integration server to integrate the network, design a generic database agent to integrate database, adopt a multi-agent based architecture to integrate application, and utilise a wrapper as a CORBA object to integrate the legacy code. Finally, a prototype framework is presented. ID="A1"Correspondance and offprint requests to: Dr F. T. S. Chan, Department of Industrial and Manufacturing Systems Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong. E-mail: ftschan@hkucc.hku.hk     

A STEP AP224 agent-based early manufacturability assessment environment using XML

Early design assessment activities have a significant impact on reducing the cost of manufacture. The efficient utilisation of the product development time and the level of coordination of the early design activities between the major stakeholders are becoming key factors for success in manufacturing today. The paper reports on a new distributed early design manufacturability assessment methodology using collaborative autonomous agents. A product data model compliant with STEP AP224 and corresponding process and facility data models are proposed to support the decision-making process. XML was used as a medium for exchange of requests and information between design, manufacturing, and facility planning agents. A prototype Web-enabled system for rapid product manufacturability assessment in the extended enterprise has been developed using distributed multi-agent CORBA objects. The reported research is a step towards the development of a generic prototype tool for collaborative design evaluation and rapid assessment of the manufacturing feasibility and resource availability at different stages of the product development process.     

An adaptive slicing algorithm and data format for functionally graded material objects

Rapid prototyping technology makes the manufacturing of functionally graded material (FGM) objects possible. The FGM production process requires concurrent applications of digital design and manufacturing methods. For this reason, it is imperative to construct and capture information and other critical data regarding the geometry and materials about FGM objects for use in the manufacturing process. This paper proposes a simplex-clear data format for modeling FGM objects. This proposed data format captures both the geometry and material information of an FGM object. It also presents a finite element-based slicing algorithm which slices the FGM object into layers and captures each layer’s information for rapid prototyping manufacturing of the object. An example is given at the end of the paper to validate the data format and demonstrate the adaptive slicing algorithm.