DYNAMIC MATHEMATICAL MODEL OF CHEMICAL COMPOSITION FOR MELTED IRON IN CUPOLA AND MICROCOMPUTER SIMULATION

ＤＹＮＡＭＩＣＭＡＴＨＥＭＡＴＩＣＡＬＭＯＤＥＬＯＦＣＨＥＭＩＣＡＬＣＯＭＰＯＳＩＴＩＯＮＦＯＲＭＥＬＴＥＤＩＲＯＮＩＮＣＵＰＯＬＡＡＮＤＭＩＣＲＯＣＯＭＰＵＴＥＲＳＩＭＵＬＡＴＩＯＮＤＹＮＡＭＩＣＭＡＴＨＥＭＡＴＩＣＡＬＭＯＤＥＬＯＦＣＨＥＭＩＣＡ...     

RECOGNITION OF STRUCTURAL DIAGRAM OF MACHINE TOOL SPEED CHANGE SYSTEM WITH ANY COMPOSITE RATIO

ＲＥＣＯＧＮＩＴＩＯＮＯＦＳＴＲＵＣＴＵＲＡＬＤＩＡＧＲＡＭＯＦＭＡＣＨＩＮＥＴＯＯＬＳＰＥＥＤＣＨＡＮＧＥＳＹＳＴＥＭＷＩＴＨＡＮＹＣＯＭＰＯＳＩＴＥＲＡＴＩＯＲＥＣＯＧＮＩＴＩＯＮＯＦＳＴＲＵＣＴＵＲＡＬＤＩＡＧＲＡＭＯＦＭＡＣＨＩＮＥＴＯＯＬＳ...     

TEMPERATURE FIELD CONTROL PRINCIPLE AND CONTROL MODELS FOR CRYOGENIC MACHINING SYSTEM

ＴＥＭＰＥＲＡＴＵＲＥＦＩＥＬＤＣＯＮＴＲＯＬＰＲＩＮＣＩＰＬＥＡＮＤＣＯＮＴＲＯＬＭＯＤＥＬＳＦＯＲＣＲＹＯＧＥＮＩＣＭＡＣＨＩＮＩＮＧＳＹＳＴＥＭＴＥＭＰＥＲＡＴＵＲＥＦＩＥＬＤＣＯＮＴＲＯＬＰＲＩＮＣＩＰＬＥＡＮＤＣＯＮＴＲＯＬＭＯＤＥＬＳＦＯ...     

利用开发工具和工程数据库进行特征造型的方法

提出一种利用Ｐｒｏ／Ｅｎｇｉｎｅｅｒ软件开发工具Ｐｒｏ／ＤＥＶＥＬＯＰ加ＣＩＭ环境下的工程数据库进行特征造型的方法，实现ＣＩＭ环境下ＣＡＤ特征造型的工程信息以工程数据库的形式与ＣＡＰＰ、ＣＡＭ系统共享。     

利用开发工具和工程数据库进行特征造型的方法

提出一种利用Ｐｒｏ／Ｅｎｇｉｎｅｅｒ软件开发工具Ｐｒｏ／ＤＥＶＥＬＯＰ加ＣＩＭ环境下的工程数据库进行特征造型的方法，实现ＣＩＭ环境下ＣＡＤ特征造型的工程信息以工程数据库的形式与ＣＡＰＰ、ＣＡＭ系统共享。     

COMPUTER AIDED ANALYSIS OF FLEXI－BLE MEMBER IN CONSIDERATION OF THE EFFECTS OF DYNAMIC STI－FFEN－ING

ＣＯＭＰＵＴＥＲＡＩＤＥＤＡＮＡＬＹＳＩＳＯＦＦＬＥＸＩ－ＢＬＥＭＥＭＢＥＲＩＮＣＯＮＳＩＤＥＲＡＴＩＯＮＯＦＴＨＥＥＦＦＥＣＴＳＯＦＤＹＮＡＭＩＣＳＴＩ－ＦＦＥＮ－ＩＮＧＣＯＭＰＵＴＥＲＡＩＤＥＤＡＮＡＬＹＳＩＳＯＦＦＬＥＸＩ－ＢＬＥＭＥＭＢＥＲＩ...     

PERFORMANCE CHARACTERISTICS AND VISCOUS FLOW ANALYSIS OF CENTRIFUGAL PUMPS

ＰＥＲＦＯＲＭＡＮＣＥＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＡＮＤＶＩＳＣＯＵＳＦＬＯＷＡＮＡＬＹＳＩＳＯＦＣＥＮＴＲＩＦＵＧＡＬＰＵＭＰＳＰＥＲＦＯＲＭＡＮＣＥＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＡＮＤＶＩＳＣＯＵＳＦＬＯＷＡＮＡＬＹＳＩＳＯＦＣＥＮＴＲＩＦＵＧ...     

CONSTRUCTION DESIGN AND FLOW ANALYSIS OF CENTRIFUGAL PUMP IMPELLER WITH SUPER-LOW SPECIFIC SPEED

ＣＯＮＳＴＲＵＣＴＩＯＮＤＥＳＩＧＮＡＮＤＦＬＯＷＡＮＡＬＹＳＩＳＯＦＣＥＮＴＲＩＦＵＧＡＬＰＵＭＰＩＭＰＥＬＬＥＲＷＩＴＨＳＵＰＥＲＬＯＷＳＰＥＣＩＦＩＣＳＰＥＥＤ①ＹａｎｇＭｉｎｇｕａｎＹｕａｎＳｈｏｕｑｉＣａｏＷｕｌｉｎｇＪｉａｎｇｓｕＵｎｉ...     

WEAR TRANSITIONS OF C/Cu COMPOSITE MATERIALS

ＷＥＡＲＴＲＡＮＳＩＴＩＯＮＳＯＦＣ／ＣｕＣＯＭＰＯＳＩＴＥＭＡＴＥＲＩＡＬＳ￥ＢｕＹａｎ；ＸｉａｎｇＺｈｏｎｇｘｉａ（ＴｉａｎｊｉｎＵｎｉｖｅｒｓｉｔｙ）Ａｂｓｔｒａｃｔ：ＡｎｕｎｌｕｂｒｉｃａｔｅｄｓｌｉｄｉｎｇｆｒｉｃｔｉｏｎｔｅｓｔｏｎＣ／Ｃ...     

TREATMENT OF COMPLEX LOAD HISTORY AND CONSTRUCTION OF FATIGUE LOAD SPECTRUM

ＴＲＥＡＴＭＥＮＴＯＦＣＯＭＰＬＥＸＬＯＡＤＨＩＳＴＯＲＹＡＮＤＣＯＮＳＴＲＵＣＴＩＯＮＯＦＦＡＴＩＧＵＥＬＯＡＤＳＰＥＣＴＲＵＭＴＲＥＡＴＭＥＮＴＯＦＣＯＭＰＬＥＸＬＯＡＤＨＩＳＴＯＲＹＡＮＤＣＯＮＳＴＲＵＣＴＩＯＮＯＦＦＡＴＩＧＵＥＬＯＡＤＳＰＥ...     

An Infrastructure for Integrated Automation System Implementation

Evolution of advanced manufacturing technologies and the new manufacturing paradigm has enriched the computer integrated manufacturing (CIM) methodology. The new advances have put more demands for CIM integration technology and associated supporting tools. One of these demands is to provide CIM systems with better software architecture, more flexible integration mechanisms, and powerful support platforms. In this paper, we present an integrating infrastructure for CIM implementation in manufacturing enterprises to form an integrated automation system. A research prototype of an integrating infrastructure has been developed for the development, integration, and operation of integrated CIM system. It is based on the client/server structure and employs object-oriented and agent technology. System openness, scalability, and maintenance are ensured by conforming to international standards and by using effective system design software and management tools.     

阶梯形CIM系统体系结构

实施ＣＩＭ的核心是系统集成,因此,成功的要诀之一就在于能否作好全局性的分析设计。ＣＩＭ系统体系结构就是为这种系统分析提供所必需的建模方法和工具。国际上已经提出了多种ＣＩＭ系统体系结构,它们各有长短,但其实用性都不够理想。本文作者于１９９３年在学习国外体系结构思想的同时,又结合中国国情,提出了一种六视图阶梯形ＣＩＭ系统体系结构。其中在ＣＩＭ系统体系结构中加入经济视图的观点,是作者于１９９３年在国际上首次提出的。     

在车身开发中应用CIMS技术

ＣＩＭ是企业面对市场竞争的发展战略，目前还没有一个普遍接受的解决方案。在东风汽车公司ＣＩＭＳ应用工程中采用了分步实施的策略，首先在车身开发一民覆盖件模具设计与制造中应用ＣＡＤ／ＣＡＰＰ／ＣＡＭ集成系统。广西分析了应用集成系统的必要性。讨论了系统集成方案，系统的结构和物理实现。     

CIMS企业中的多数据库集成技术

计算机集成制造系统是一个极其复杂的系统,同时参与集成的企业之间的信息系统,包括顾各种分散、自治、异构的多数据库系统,因此,如何有效地集成这些异构信息,就成为目前实现CIMS企业的一个关键问题。我们在开发的CIM集成平台HIT－ⅡS系统的基础上,设计了扩充信息服务器类的方案,着重讨论了其中在CIMS集成平台环境下的多数据库系统的集成模式结构,及其基于Client/Server的系统结构,并提出了多数据库集成器的概念与功能结构。     

数控机床远程控制及通信研究

简要介绍了TCP／IP通信协议及在c／s模式下实现远程控制通信的流程,论述了在VB6．0编程环境下,利用Winsock通信实现远程控制的方法和设计思路;阐述了NUM数控系统APServer的体系结构,服务器通过CNC获取机床信息的方法,以及服务器端和客户端控制功能编程的实现方法。远程控制系统可以实现文件的上传、下载和机床参数的查询等功能。试验证明,该系统的体系结构可以实现预期远程控制的目的。     

沧州化肥厂CIMS应用工程初步设计

本文基于一种ＣＩＭＳ全过程体系结构，针对沧州化肥厂生产过程特点及自动化发展状况，分析讨论了实施ＣＩＭＳａｃ程的新策略，提出了该厂ＣＩＭＳａＬ程的初步设计方案。     

CIM系统体系结构实用化的障碍分析与研究

根据阶梯形CIM系统体系结构在中国实际应用中存在的问题和不足,指出了CIM体系结构对企业设计、实施CIM系统的重要作用长期以来得不到体现的主要原因,即研究内容与实际要求有距离,缺乏成熟的建模方法、可靠的分析手段、完善的评价准则以及实用的集成基础结构。由此进一步阐明了一些体系结构研究应明确的概念,指出了体系结构实用化应开展的研究工作,提出应以经济视图和评价准则为突破点逐步发展的建议。     

Development of graphical software for CIM applications

Flexibility, quality and cost advantages are three major factors motivating the introduction of CIM. However, lack of formalisms, tools, methodologies and organizational structures have slowed work in the CIM field. The development of application software capable of tailoring solutions to specific manufacturing problems from a set of existing and future CIM components, the automatic generation of friendly user interfaces to support individual user requirements, the design features that ensure the independence of application software, and the user interface software for accommodating changing manufacturing requirements are some of the key factors that determine the successful application of CIM. The Papillon prototype (developed under the ESPRIT research programme) presented here is based on sound software engineering principles, and has achieved an architecture which separates the application from the user interface, supports configurability of components and generates user interfaces without direct coding. Initially, pure application software with no graphics is built from a set of basic Papillon building blocks: graphical representations are then described by using the EASEL subsystem, and finally the user interface, which enables the user to ‘drive’ applications, is automatically generated. The EASEL subsystem is independent of the Papillon run-time system, and therefore different graphical user interfaces can be generated easily and evalauted at run-time with no need for recompilation. Fundamental concepts such as portability, configurability and reuse of methods and tools are major considerations in the overall design and implementation of the Papillon system. Although the primary emphasis is on CIM, the generic design of the Papillon system makes it an ideal environment for the development of graphical software for a wide range of applications in several fields.     

A new type of machine control system to replace traditional CNC

This paper discusses the rationale behind a new form of machine tool control system which has been developed at the Key Centre for Computer Integrated Manufacture (CIM Centre) in Melbourne Australia. The new control system is based upon standard computer hardware and is intended as a replacement for computer numerical control (CNC), which has severe limitations in the CIM environment. The paper also outlines the new CIM possibilities which are now available as a result of this development.     

事务过程重建BPR与MRP—Ⅱ应用模式设计

ＢＰＲ是信息技术的最新研究方向。在技术上主要是对“客户机／服务器”分布式计算环境的工作流程进行研究，重新建造事务过程规则，改写原来主机方式的管理信息应用软件。本文把ＢＰＲ关于信息系统以过程为中心的研究思想与ＣＩＭＳ的实践紧密结合起来，针对工厂应用ＭＲＰ－Ⅱ生产管理系统如何建立信息处理流模型进行了研究，并设计了ＭＲＰ－Ⅱ应用模式。