PDM system implementation based on UML

The paper deals with a Unified Modeling Language (UML)-based approach for implementing Product Data Management (PDM) system. Such kind of system enables the management of the entire product lifecycle and related information about its design, its manufacturing and its in-service.

The interest of using an UML-based approach for modeling, specifying and implementing PDM systems is detailed. Then an implementation method is proposed in order to clarify the instantiation of UML diagrams into database entities. Regarding a business case study based on the needs of a turboprop aircraft development project, the preliminary implementation of PDM system is presented. The used UML diagrams for the modeling and integration of product, process, and resource data is detailed in order to argue the interest of an object-oriented approach in such kind of PDM implementation.     

PDM/CAx产品变型设计系统

采用基于消息驱动的星型集成模式实现PDM/CAx系统的紧密集成,将事物特性表(SML)技术与参数化CAx技术相结合,支持从管理层面到实现层面的快速变型设计.在PDM系统中利用SML建立产品族信息模型,支持产品族数据的存储、查询、识别、比较和选择,在CAx系统中实施尺寸驱动、工艺规程派生等变型功能.目前该软件系统已经应用于汽车企业、邮电设备企业.     

产品数据管理系统的用户权限管理

通过对产品数据管理系统的分析，本文探讨了产品数据管理系统中数据、工作流程、活动、操作和角色之间的关系，提出了基于数据、工作流程、活动、操作和角色的用户权限管理的建模方法。通过在某航空企业PDM系统中建立用户权限管理模型的应用，证明了这种方法具有简单、规范、有效等特点，井可广泛应用于其它类型的复杂信息系统中。     

基于STEP的三维CAD和PDM系统集成方法研究

研究了基于STEP标准的产品信息模型、CAD数据交换接口、产品数据交换接口,提出了基于STEP中性机制和产品信息模型的三维CAD和PDM系统集成框架,该框架有助于实现广义CAD功能CAD/CAE/CAPP/CAM/CAQ/PDM/ERP之间的系统集成,异地、异构系统在企业间的集成,能够为企业设计和管理信息化提供一体化解决方案.     

基于中性文件机制的异构PDM系统集成方法

异构PDM系统之间产品设计信息的集成是实现企业间集成的必要条件。文中提出了一种基于中性文件机制实现异构PDM系统产品设计信息交换的模式,建立了支持该模式的共享信息模型,并给出了基于共享信息模型开发异构PDM系统信息交换接口的方法。所提出的模型和解决方案,对实现异构PDM系统中各种信息的交换具有普遍意义。     

PDM 结合FMEA 进行金融设备的故障诊断

金融系统的故障诊断要求标准高,针对金融系统金融产品从设计到生产相关文档齐全,各零部件参数详细,有着明确统一的标准的特点。在简单介绍PDM 和FMEA 的基础上,提出了PDM 与FMEA 相结合生成故障树进行金融设备故障诊断与维护的方法,将金融产品构成信息、产品功能信息及维修信息并融合产品设计阶段获取的诊断知识,进行诊断,使产品的设计、诊断与维护形成一个有机整体。详细阐述了PDM 结合FMEA 的生成故障树的知识表达及规则生成的原理,并以ATM 机为例进行了验证。     

基于PDM-Smarteam的广义设计信息建模方法研究

产品数据管理系统在支持产品快速开发方面，存在诸多缺点，该文就此作了深入分析，提出了广义设计信息的概念，用面向对象的方法作了类图设计，深入研究了产品数据管理系统的对象建模方法，以商业产品数据管理软件Smarteam作为平台，初步实现了广义设计信息的建模。     

PDM系统与群件系统的集成

在CIMS环境下,企业的产品信息管理主要由PDM来完成;而办公部门则使用群件系统作为协同工作办公自动化平台,要实现整个的信息集成,不可避免地要将PDM系统与群件系统集成起来,文中通过对PDM系统和群件系统主要功能的分析,总结出这两种系统集成的需求,内容和原理,并以具体的软件系统探讨了集成的实现。     

Development of an Internet-enabled interactive fixture design system

Fixture design is a complex and an intuitive process. An efficient fixture design system is essential to cut costs and reduce the product lead-time. In today's manufacturing landscape, various computer-aided systems exist to aid the various stages of manufacturing. A fixture design system should be able to transfer information with the various other systems to bring about a seamless product design and manufacturing environment. A fixture design system should also be portable on different operating platforms. This paper addresses the development of an Internet-enabled interactive fixture design system. The Internet and the use of XML as a file format provide a means for the transfer of information and knowledge between the various computer-aided manufacturing systems. The system has been implemented using Java and is based on a three-tier Thin Client-Fat Server architecture. This ensures the platform independent performance of the system. A locating scheme independent interactive fixture design method has also been developed in this work for detailed fixture design.     

基于PDM Enablers的飞行器并行设计文档管理模型

传统的产品数据管理（PDM）系统之间没有标准的接口,缺乏互操作性,难以与国际接轨,限制了飞行器并行设计中产品数据交互的范围。Object Management Group（OMG）发布的产品数据管理使能（PDM Enablers）规范支持分布式产品数据管理环境并对不同的PDM系统提供了标准接口,能够很好地解决以上问题。该文以PDM Enablers为依据,采用面向对象的建模方法,首先提出了基于Enablers的飞行器并行工程环境体系结构;其次建立了基于Enablers的文档管理模型,并着重对文档的状态变迁及版本管理机制进行研究;最后讨论了支持飞行器并行设计的文档管理信息存储模式。     

An object-oriented bill of materials system for dynamic product management

In this paper, the bill of materials (BOM) system is defined as the central hub of a general product data management (PDM) system that provides essential data for running a manufacturing system to produce products. Information that is relevant to products and their components is defined in the BOM. The information is critically related to data from product design, manufacturing planning, production management, procurement, inventory control, and accounting within a company. A conventional BOM structure (or product configuration), which manages data only in a stand-alone relational database management style, cannot satisfy the needs requested by all departments within a company. A BOM should relate to and communicate with other domains of the information system. In this research, a newly designed BOM system uses the object-oriented programming (OOP) concept to represent product information. The object-oriented BOM (OOBOM) system can capture and encapsulate data that will simultaneously serve the information needs of various departments. In order to manage product data dynamically, the system provides several interfaces for easy data access and manipulation. The linkage between BOM and its corresponding CAD/CAM system is enabled through the X-window manager: thus an integrated PDM environment is developed. This product management approach improves the consistency and efficiency of product data representation.     

Application of OLAP to a PDM database for interactive performance evaluation of in-progress product development

This paper applies online analytic processing (OLAP), a widely accepted database analysis technique, to a product data management (PDM) database to evaluate the performance of in-progress product development. This paper introduces a set of processing key performance indicators (KPIs) that can measure ongoing product development. To convert and analyze operational data in a PDM database with interactive OLAP operations, this study proposes a multidimensional data model specified by product facts with associated dimensions. The model is implemented using a commercial OLAP engine, and applied to a database supported by a prototype PDM system. The OLAP engine allows analysts to interactively evaluate the performance of in-progress product development in a multidimensional data space. This is a far more flexible and efficient approach than other result-oriented static evaluation approaches.     

基于Web服务的协同制造研究

产品的复杂性决定了产品制造过程的复杂性,需要设计、工艺,生产等部门在各个环节以及不同制造原料和生产人员协同完成,网络以及网络化制造的发展为分布式协同制造提供了实现环境,Web Services技术的成熟化为实现协同制造提供了技术支持,各个系统通过Web Services以及可扩展标记语言实现异构信息的共享及制造过程协同.研究了基于Web Ser-vices的协同制造,提出了面向服务的协同制造管理框架,并分析了框架的实现.最后将协同制造管理框架应用到车间管理信息系统,并使CAD,PDM、CAPP、设备、人事、生产信息等协同到制造过程,实现制造过程集成管理.     

基于PDM的液压缸CAD系统的研究与开发

PDM是CAx信息集成的平台,本文在分析了PDM系统的功能模块以及PDM与CAD系统之间的信息集成关系的基础之上,应用VB6.0、ACCESS、AUTOCAD2004进行了系统的开发。系统主要由三部分组成液压缸辅助设计部分计算机辅助绘图部分和产品信息管理部分。实现了液压缸产品设计、计算、绘图以及产品数据管理的一体化,提高了产品设计水平和企业的信息化水平。     

Adding agility to CAD: Integrating product data management tools into an organization

The integration of product data management (PDM) software tools into a manufacturing company requires both technical and organizational considerations. Using an information processing paradigm, the impact of PDM on the design process and group activities are assessed. Using ongoing work with the furniture industry in the Southeastern United States as an example, the relationship of job design and the product development process to the introduction of PDM is examined. © 1997 John Wiley & Sons, Inc.. Inc.     

维修性分配工具与PDM系统的集成技术研究

针对装备研制阶段维修性分配工具在使用过程中的数据互用性差、工作效率低的问题,分析了并行设计环境下维修性分配活动相关信息的逻辑分类,提出了维修性分配工具与产品数据管理(PDM)系统的通用集成方案,实现了维修性分配信息的获取、处理和传递,并选取Teamcenter系统和MAP 2.0维修性分配工具完成了系统集成的实例验证,并对数据接口的设计实现和关键技术进行了探讨.     

面向PDM的产品及其零部件的EXPRESS模型

对产品及其零部件进行正确建模是PDM系统实现的前提和关键,文中针对现有STEP应用协议存在的局限性进行了合理的扩充,建立了产品及产品版本类、产品定义关系类等产品及其零部件的XEPRESS模型,开发了基于该模型的PDM系统,实现了产品的结构管理、配置管理、以及产品相关信息的集成管理,对所建立的EXPRESS模型进行了验证和应用。     

Web-based design review of fuel pumps using fuzzy set theory

While product design and development has received significant attention over the past years, the activity of Design Review (DR) has not been dealt with at the equal level, despite its paramount importance. This can be easily observed from the scarce literature and ad hoc approach in industrial practices. Few Product Data Management (PDM) systems provide facilities for design review due to the lack of rigorous DR methodologies. This paper proposes a systematic and rigorous methodology for more efficient and effective DR by applying and extending the Suh’s well-known Theory of Axiomatic Design (TAD) into a Systematic Theory of Axiomatic design Review (STAR). The resulting STAR framework is well-structured and generic enough not only to act as the basis for developing a web-based design review portal in the extended enterprise, but also to accommodate specific design review techniques such as FuzzySTAR (Fuzzy Set Theory Approach to design Review) used for reviewing the fuel pump design case study.