基于约束的可定制产品配置模型

在分析可定制产品概念及其结构特点的基础上，通过采用可定制产品的形式化建模方法，实现了对可定制产品配置模型与可定制产品数据BOM的构建．利用可定制产品配置模型中的约束条件及相应的产品数据BOM的分解算法，并配合工程数据库技术，降低了企业产品数据管理的冗余和低效，实现了可定制产品数据在企业各部门间的集成、共享及一致性控制．     

可定制产品数据BOM构造方法研究

通过对传统产品设计BOM的组成结构分析,构建了可定制产品数据BOM的组织模型;并在此基础上,给出了它的构造方法及其分解算法。运用该构造方法实现了面向客户的产品数据BOM的一致性管理及企业各职能域间对产品数据信息的集成与共享．通过在产品配置中增加虚拟件的方式,实现了产品数据BOM的定制信息描述,同时,利用可定制产品数据BOM的联合分解算法,实现了物料数据清单的高效、快速分解．     

一种面向并行工程的统一产品BOM模型*

为解决传统的串行演化过程中各种BOM之间的不一致性问题,提出一种面向并行工程的统一产品BOM模型。该模型重构组织结构,建立面向并行工程的组织体系;重构BOM过程,构建并行的BOM应用架构;分析产品生命周期所涵盖的BOM信息,提出集成化BOM信息模型,该BOM信息模型由物料项信息模型、产品结构信息模型和零件信息模型三个模型构成。实际项目应用表明,提出的面向并行工程的统一产品BOM模型是有效可行的。     

基于工艺配置的产品数据与工艺数据集成管理研究

针对目前企业产品数据管理与工艺数据管理间的“信息孤岛”现象,采用面向对象的方法,以产品配置为引导源,工艺配置为纽带,建立产品配置与工艺配置间的关联关系,并通过工艺配置引导相应的工艺数据,进而解决产品数据管理与工艺数据管理间的集成问题,实现产品配置数据与工艺数据信息之间的数据一致性控制．     

基于SOA技术的BOM集成研究

BOM数据贯穿于产品设计、工艺和制造的全过程。针对现有PDM与CAPP系统,采用基于SOA技术的集成接口方式,搭建了以产品数据管理(PDM)系统为核心与工艺规划管理(CAPP)系统之间的BOM数据集成框架,实现了从EBOM到PBOM的数据传递,同时为实现企业各系统之间的应用集成奠定了基础。     

复杂产品批次BOM管理的实践与探索

在制造型企业中,BOM贯穿于产品概念设计、详细设计、工艺规划、样机试制、加工制造、销售维护直至产品消亡等过程.随着企业信息化建设的推进,BOM成为企业产品数据管理的核心,是各应用信息系统之间进行数据集成的基础和桥梁.许多制造型企业在信息化建设中只是对产品设计和工艺BOM进行了有效管理,但对于复杂产品结构关系,尤其是复杂产品批次BOM的管理没有达到预期的效果.     

面向产品的企业数据数字化集成管理模式

为适应现代企业数字化管理的需要，对企业数据进行分类并分析了企业数据集成管理的概念；针对目前企业信息管理中存在的信息孤岛现象，采用面向产品的方法，构建了以产品设计数据为数据源的企业数据BOM体系，详细论述了企业目标数据多BOM间的映射关系，并建立了它们之间以产品为导向的关联机制，以实现企业数据的一致性控制和管理，解决企业数据的分散性问题．     

集成化工艺信息管理系统InteCAPP的研究与开发

在建立中性化工艺信息模型的基础上，分析了基于PDM平台的工艺信息管理系统体系结构和工艺信息管理机制，重点研究了设计BOM到工艺BOM、再到制造BOM的生成过程，同时实现了面向产品全生命周期的新一代集成化工艺信息管理系统InteCAPP．     

制造业主数据平台的设计

简述了主数据平台的重要性,尤其BOM结构的核心作用,以汽车制造业为例,说明产品体系与BOM对应关系,零部件的多种属性,阐释出BOM的多种阶段的形式,为设计,工艺,生产,采购,装配,财务核算服务,对于制造业的主数据整理和运用有极大的指导意义。     

基于Pro/E二次开发的多视图BOM生成与管理研究

BOM管理是实现企业信息集成的核心内容.介绍了Pro/Toolkit的对象模型及其使用方法.定义了BOM元的数据结构.基于Pro/Toolkit访问Pro/E的图形数据库提取产品零部件的属性信息和层次关系信息生成基础BOM.设计了多视图BOM映射过程中的BOM元操作,并给出了以基础BOM为单一数据源的多试图BOM映射方法.介绍了多视图BOM生成与管理系统的开发和应用,实践结果表明,该系统可有效提高企业信息系统的集成度.     

A structured methodology for implementing engineering data management

One of the most significant positive effects on product and process development in recent years has been the application of data management techniques. Engineering data management or product data management is the most promising one. The implementation of engineering data management is heavily dependent on the engineering process and involves the technologies of management, engineering, and information. However, as there is no commonly acceptable approach and methodologies for implementing engineering data management, it’s implementation becomes a bottleneck.This paper presents a structured methodology for the implementation of engineering data management. The approach consists of a series of steps, from business and engineering process analysis, modeling and reengineering, through system design and modeling, to system realization.This research will facilitate engineering process improvement and the planning, design and implementation of engineering data management. Consequently, it will help increase product development capability and quality, reduce development cycle time and cost, and hence increase product marketability.     

Port-based ontology modeling to support product conceptualization

In today's rapidly changing marketplace, product demand is one of the most powerful driving forces behind design, thus rendering product conceptualization full of challenges. As a port can be defined as the point of action between a component and its environment, it plays a crucial role in capturing component concepts and realizing conceptual design. This paper presents a convenient approach to representation of the intended exchange of signals, energy, and/or materials and the generation and management of port-based knowledge (PBK). A port-based ontology modeling (PBOM) process that supports product conceptualization is described. A port definition and port functional representation are provided first with their semantic synthesis then employed to describe a port ontology. Second, details of the construction of a port-based ontology (PBO) repository that contains the assorted primitive functions, similarity calculations, and primitive concepts needed to map component connections and interactions are provided. The hierarchical attributes and taxonomy of ports are established, and the compatibility rules are then used to determine the connectability of two components. Next, the PBOM process is presented and a port-based, multi-view model is articulated, with the definition of each view and the projected relationships among the views given. Furthermore, a port-based ontology language (PBOL) that represents the process of port ontology refinement is presented, and a port-based function–behavior–structure (FBS) modeling framework is constructed for primitive system configuration. Finally, the results of a correction tape dispenser case study carried out to validate the efficiency of the port ontology for product conceptualization are presented.     

产品数据管理中的工程变更管理的建模与实现

建立在产品数据管理系统基础上的工程变更管理是指管理处于预发布和发布生命周期状态的产品数据。本文在Windchill的基础上建立了面向对象的工程变更管理模型，实现了基于产品数据之间关联关系的配套更改检查，提出了变更对象间的同步机制，并给出了在某大型制造企业的应用实例。     

Research on Concurrent Engineering Oriented Integrated Product Development Process Management System

In concurrent engineering, effective process management is the key to improve the efficiency and quality of product development. Although in project management system, workflow management system and PDM system, process management functions are provided, they can not meet the needs of product development. In this paper, we integrate the project management, workflow management and product management technique together and a concurrent engineering oriented integrated product development process management system is proposed. The system structure, integrated product development model and running method are introduced. The practice proves this system is powerful in supporting product development process.     

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.     

Windchill 10.1基于产品数据成熟度的变更管理

工程变更是企业科研生产的重要活动,良好的变更管理有助于企业提高产品质量,快速响应用户需求。在产品研制过程中,工程更改出现的时间越晚,其影响程度越大。文章基于PDM系统,结合企业自身实际,概述了变更管理的现状和不足,通过引入产品成熟度的理念,提出了一种基于产品数据成熟度的变更管理概念,给出了产品数据成熟度的等级定义和标识方法。结合某企业实践,概述了该方法的应用过程和取得的效果。     

Ontology-based data integration and decision support for product e-Design

Currently, computer-based support tools are widely used to facilitate the design process and have the potential to reduce design time, decrease product cost and enhance product quality. Although there are promising information systems to manage product lifecycle and product-related data, including product data management (PDM) and product lifecycle management (PLM), significant limitations still exist, where information required to make decisions may not be available, may be lacking consistency, and may not be expressed in a general way for sharing between systems. Moreover, there remains little support for decision making that considers multiple complex technical and economical criteria, relations, and objectives in product design. To address these problems, this paper presents a framework for an ontology-based data integration and decision support environment for e-Design. The framework can guide designers in the design process, can make recommendations, and can provide decision support for parameter adjustments.     

Data structures and DBMS for computer-aided design systems

The structures for the storage of data in CAD systems influence to a large extent the effectiveness of the system. This paper reviews the wide range of data structures and database management systems (DBMS) available for structuring CAD data. Examples of basic data types are drawn from the MODULA-2 language. The relationship between these basic data types, their composite structures and the classical data models (on which many DBMS are based) is discussed, and the limitations of existing DBMS in modelling CAD data highlighted. A set of requirements for CAD database management systems is drawn up and the emerging role of product models (which seek to encapsulate the totality of data elements required to define fully an engineering artefact) is explored.