飞机结构件集成化CAPP系统

本文介绍了一个飞机结构件ＣＡＰＰ系统ＦＡ－ＣＡＰＰ，它是运行于成都飞机工业公司ＣＩＭＳ环境的集成化ＣＡＰＰ系统，实现了同ＣＩＭＳ各集成单元的集成。文中介绍了ＦＡ－ＣＡＰＰ的主要功能，重点讨论了ＣＡＤ／ＣＡＰＰ／ＣＡＭ的集成、特征基工艺决策及其专家系统、知识库技术的应用等关键技术问题。     

CIMS环境下一种飞机结构件知识基CAPP系统FA—CAPP

介绍了８６３计划ＣＩＭＳ重点应用工程－－成都飞机工业公司ＣＩＭＳ环境下的飞机结构件知识基ＣＡＰＰ系统－－ＦＡ－ＣＡＰＰ系统的主要功能，重点讨论了在飞机结构件集成化知识基ＣＡＰＰ的研究与开发方面所取得的研究和应用成果，包括ＣＡＤ／ＣＡＰＰ／ＣＡＭ的集成，特征基工艺决策，专家系统技术的应用、知识库技术的应用、工序图的生成与编辑、基于数据库的工艺过程信息共享等。     

CIMS环境下一种飞机结构件知识基CAPP系统FA－CAPP

介绍了８６３计划ＣＩＭＳ重点应用工程──成都飞机工业公司ＣＩＭＳ环境下的飞机结构件知识基ＣＡＰＰ系统──ＦＡ－ＣＡＰＰ系统的主要功能，重点讨论了在飞机结构件集成化知识基ＣＡＰＰ的研究与开发方面所取得的研究和应用成果，包括ＣＡＤ／ＣＡＰＰ／ＣＡＭ的集成、特征基工艺决策、专家系统技术的应用、知识库技术的应用、工序图的生成与编辑、基于数据库的工艺过程信息共享等。     

CAPP与相关MIS间的信息集成化

企业的许多管理系统的需求信息与产品的加工信息密切相关，因此，在研究ＣＡＰＰ和ＣＡＤ／ＣＡＰＰ／ＣＡＭ集成化的同时，应充分关注ＣＡＰＰ与相关ＭＩＳ间的信息集成化。本文结合国家８６３／ＣＩＭＳ单元技术应用工厂的实际需求，通过ＣＡＰＰ与相关ＭＩＳ的功能结构、信息关系模型及其工作原理与工作流程，论述了如何实现ＣＡＰＰ与材料定额管理、成本核算和生产用网络计划等系统间的信息集成化。经初步实施表明，不仅工艺人员     

马来酸酐接枝聚丙烯在纸粉填充聚丙烯体系中偶联作用 …

研究了马来酸酐枝接聚丙烯（ＭＡＰＰ）对纸粉（ＰＦ）／聚丙烯（ＰＰ）复合材料性能的影响，并对其详机理进行了探讨，力学测试和扫描电镜（ＳＥＭ）结果表明，ＭＡＰＰ是本体系有效的偶联剂，质量分析实验证明ＭＡＰＰ与纸粉发生了化学反应，同时差示扫描量热分析（ＤＳＣ）和广角Ｘ射线衍射实验（ＷＡＸＤ）证明ＭＡＰＰ的ＰＰ链段可与ＰＰ基体形成共结晶。     

《计算机集成制造系统──CIMS概论》

作为“现代工业企业自动化丛书”之一的《计算机集成制造系统──ＣＩＭＳ概论》已由清华大学出版社出版。该书系统全面地介绍了计算机集成制造系统（ＣＩＭＳ）的基本组成和最新发展动态,包括计算机辅助设计和制造工程系统（ＣＡＤ／ＣＡＭ）、计算机辅助工艺设计（ＣＡＰＰ）、成组技术（ＧＴ）、柔性制造系统（ＦＭＳ）、管理信息系统（ＭＩＳ）、制造资源计划（ＭＢＰⅡ）和ＣＩＭＳ网络,并且针对我国的实际情况如何有效地实施ＣＩＭＳ工程进行了讨论。ＣＩＭＳ已成为企业生产管理自动化的必由之路和自动化领域的前沿学科。在以计算机…     

马来酸酐接枝聚丙烯在纸粉填充聚丙烯体系中偶联作用的研究

研究了马来酸酐接枝聚丙烯（ＭＡＰＰ）对纸粉（ＰＦ）／聚丙烯（ＰＰ）复合材料性能的影响，并对其偶联机理进行了探讨。力学测试和扫描电镜（ＳＥＭ）结果表明，ＭＡＰＰ是本体系有效的偶联剂；质量分析实验证明ＭＡＰＰ与纸粉发生了化学反应，同时差示扫描量热分析（ＤＳＣ）和广角Ｘ射线衍射实验（ＷＡＸＤ）证明ＭＡＰＰ的ＰＰ链段可与ＰＰ基体形成共结晶。     

CAD／CAPP／MRPⅡ／GT信息集成的初步研究

ＣＩＭＳ的关键技术之一是动态信息集成。本文论述了一个ＣＩＭＳ雏形系统中ＣＡＤ／ＣＡＰＰ／ＭＲＰⅡ／ＧＴ之间的信息集成技术及其实现方法。提出了在ＣＡＤ系统中通过建立与工艺设计工步内容相匹配的、基于设计基本特征和工艺基本特征的特下建模技术及处理程序来实现ＣＡＤ／ＣＡＰＰ之间信息共享的方法；论述了ＣＡＰＰ系统通过与ＭＲＰⅡ系统中工艺路线管理模块之间实时信息传递来实现并行式ＣＡＰＰ设计的步骤；提出了在ＧＴ     

箱体零件CAD／CAPP／CAM集成系统的研究与实践

在ＣＩＭＳ环境下，针对箱体零件ＣＡＤ、ＣＡＰＰ、ＣＡＭ信息集成的功能需求，在基于特征的箱体零件信息模型、工艺计划模型与服务于工艺设计的制造环境模型的支持下，开发出了特征造型，工艺设计及加工过程仿真与ＮＣ编程等子系统，从而完成了一个集成化的箱体零件ＣＡＤ／ＣＡＰＰ／ＣＡＭ系统。     

集成化CAPP中制造资源的框架描述法

集成化ＣＡＰＰ在ＣＩＭＳ领域中日益显示出其重要性，但传统的ＣＡＰＰ系统缺乏对工艺设计过程怕需制造资源的形式化描述，从而影响了ＣＡＰＰ技术的集成性、智能性和通用性，能以适应制造环境的多样性和时变性。本文在分析了工艺决策过程的基础上，提出了制造资源的描述机制，从而有铲地实现了资源与ＣＡＰＰ的集成 。     

FMS中CAPP与CAM集成技术的研究

介绍了一个适用于FMS的CAPP／CAM集成系统。它由创成法CAPP系统，NC自动编程系统和它们之间的接口等主要部分组成。系统采用基于特征的零件描述方法作为集成环境下统一的零件信息模型。由CAPP系统生成的工艺规程，通过接口文件自动传输给NC编程系统，经过特征识别后，从特征NC程序库中调用相应的特征数控程序，实现NC自动编程，为检验NC程序的错误，系统还具有刀具轨迹仿真功能，系统用户界面友好，经加工验证，可用于生产。     

A modular architecture for rapid development of CAPP systems for agile manufacturing

Current manufacturing planning software systems, such as computer aided process planning (CAPP) systems, are general and in a closed form. It is very difficult to modify these systems to respond to a user's dynamically changing needs. These systems are no longer suitable for agile manufacturing. This paper presents research aimed at developing a novel architecture for the rapid development of CAPP systems. The architecture supports the construction of CAPP systems from prepackaged, plug-compatible software components. Specifications of the architecture and its building blocks are defined. Several important issues in architecture implementation are discussed, and an experimental system is illustrated. Finally, an Internet-based distributed CAPP system architecture is presented as a preview of next generation CAPP system development.     

Modelling of flexible manufacturing system: a review

A flexible manufacturing system (FMS) due to its ability of being flexible in nature is concerned with automatic production of different parts in medium range. In short, it can be regarded as an automated manufacturing system. In this paper, an insight on previous work in the area of FMS modelling has been provided with an overview of research and development for better understanding of FMS. It serves as a medium for investigation of work that are accomplished by using different modelling techniques in FMS like mathematical, artificial intelligence, hierarchical, multi criteria decision-making method, Petri Nets and simulation. This paper will help researchers who are keen to do research in the area of FMS modelling, by highlighting contribution of available techniques in the field of FMS. It will also help them in deciding which modelling techniques can be used for a given problem. At last, comparison of different parameters considered in the recent papers of modelling FMS has been provided in the form of Table, along with a clear vision related to those works that still need to be investigated.     

FMS Designer: An expert system for flexible manufacturing system design

Implementation of flexible manufacturing technology in the batch manufacturing environment has created major problems for designers and engineers who are responsible for specification and design of flexible manufacturing systems (FMS). The FMS design task appears to be an excellent application for expert systems techniques. This paper describes current results of an ongoing research effort to develop an expert system which analyses the output from an FMS simulation model, determines whether operational and financial objectives are met, identifies design deficiencies or opportunities for improvement, and proposes designs which overcome deficiencies or exploit improvement opportunities. An overview of the FMS design expert system is given and a case study is presented to illustrate how the system operates. Areas for future research are also discussed.     

AI-Based Process Planning for Electronic Assembly

Diversity of electronic products, lack of human expertise, and inconsistency among manually generated process plans increase the necessity of developing Computer Aided Process Planning (CAPP) systems for electronic assembly. Artificial Intelligence (AI) offers a few techniques to develop CAPP systems which would behave in a 'knowledgeable' manner. Two rule-based CAPP systems, a backward-chaining system developed in M. 1 shell and a forward-chaining system developed in OPS 5, and an object-oriented system developed in Objective-C are discussed. The CAPP systems generate processes and select a set of machines to perform the generated processes for a given product. In the rule-based CAPP systems, product characteristics and bill of components are stored in working memory and capabilities of the available machines are stored as rules. In the object-oriented CAPP system, product as well as the available machines are represented as objects. A central decision module which does pattern matching and sends messages to appropriate machines (objects) is developed     

面向并行环境的CAPP系统的研究

本文论述了面向并行工程的ＣＡＰＰ系统的原理。在此基础上提出一个基于网络数据库技术的面向并行环境的ＣＡＰＰ系统,并讨论了其实现方法和关键技术。     

A Decision-Information-Synchronisation perspective on the performance of FMS

The performance of a Flexible Manufacturing System (FMS) largely depends on how the control system can control the flow of entities in the system. The control system takes control decisions based on the information provided as an input to the decision-making process. Therefore, it is important that the decision-making process and information systems operate in a synchronised manner with respect to the FMS characteristics. This can also be referred to as a Decision-Information-Synchronisation (DIS) operating zone implemented in the control system. To study the DIS in the present research, three types of visibility for decision-makers in FMS shop-floor control have been identified: (1) no local visibility, (2) physical local visibility and (3) physical and information local visibility of decision-maker/operator. These alternative visibilities and automation levels of decision and information system provide the hybrid environments of FMSs control. The current paper presents an approach to identify the DIS operating zone of FMS with suitable visibility of decision-maker and automation level. Simulation results show that under non-real-time control (low automation level in decision and information system) with physical local visibility, the FMS system performs comparable with the real-time control (high automation level in decision and information system) when routing flexibility levels are presented. Under the current global competitive environment, this study helps industrial managers determine a suitable level of visibility and automation in planning an FMS control system in order to obtain the desired performance at the lower cost.     

人机智能化CAPP系统及其发展

回顾了CAPP系统的发展历程;阐述了人类智能和人工智能的特征及其在CAPP中的应用;并根据人机一体化的基本思想,提出了人机智能化CAPP系统的构想,给出了该系统的体系结构,指出了实现人机智能化CAPP系统的关键技术.     

柔性制造系统检测监控系统的研究

根据柔性制造系统的实际需要，研制了一个ＦＭＳ运行状态检测监控系统，介绍了该系统的功能与结构，论述了系统与ＦＭＳ的集成方法，讨论了系统的工作流程及对ＦＭＳ故障的处理策略。     

Design of an FMS decision support system

Flexible manufacturing system (FMS) is an integrated system consisting of computer numerical control machine tools and automated material handling system controlled by an overall control computer system. The FMS design is broken down into strategic, tactical and operational level designs. This research is concerned with the development of a decision support system for the design of FMS (FMSDDS. Simulation is used as a primary analysis tool, making the DSS capable of solving problems at all three levels. The decision making ability is provided by a multi-attribute utility model which accounts for both quantitative and qualitative factors that affect a decision. The FMSDSS is implemented using three routines: input, analysis, and output. The input routine helps the user to select feasible FMS configurations interactively. The analysis routine consists of a generalized FMS simulation model. This routine analyses the FMS alternatives selected and provides the information required for the output analysis. The qualitative and quantitative measures of performance that have to be considered for decision making are handled by the output routine. It also combines performance measures of different units such as time and cost. The DSS is modular and hence future enhancements can be readily added.