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PDM中编码技术的研究与实现 总被引:8,自引:0,他引:8
编码是产品数据管理系统(Production Data Management,PDM)中必不可少的一部分,编码的优劣直接影响整个系统的运行效率。作者结合苏州医疗器械总厂企业信息化工程的实施,设计了一套满足该企业对产品数据管理需求的产品编码系统,在Windows9X/NT平台上开发了PDM系统中的编码模块,并给出一些PDM系统中的编码模块,并给出一些PDM编码系统的应用实例。 相似文献
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基于事物特性表的CAx/PDM系统的集成研究 总被引:1,自引:0,他引:1
为支持事物特性表技术在产品设计、工艺、制造、测量等阶段的应用,深入研究了基于事物特性表的计算机辅助技术系统与产品数据管理系统的集成关键技术,提出了一种统一的基于事物特性表的集成产品信息模型和计算机辅助技术/产品数据管理系统集成框架,并在此基础上构建了集成平台。最后,以汽轮机转子为应用对象,对系统进行了应用验证。 相似文献
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面向大批量定制设计的CAD系统与PDM系统的集成研究 总被引:10,自引:0,他引:10
为了更好地支持面向大批量定制的设计技术,基于事物特性表技术,深入研究了计算机辅助设计系统与产品数据管理系统集成的关键技术。在接口集成方式下,采用3层系统集成框架对计算机辅助设计系统、产品数据管理系统和事物特性表进行了集成,提出了系统集成的逻辑数据结构,研究了系统集成的几个主要功能接口——计算机辅助设计模型注册到产品数据管理系统、创建事物特性表和变型设计接口。最后,用实例对这些原理进行了验证。 相似文献
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为满足当前产品数据管理系统对异构编码规则的适应性及信息交换的需求,采用本体方法、Web服务技术,研究实现面向产品数据管理系统的产品编码中间件。日趋复杂的产品数据要求编码模型具有更为强大的描述能力和跨组织的融合及互操作。针对该问题,提出了基于本体的编码模型,并重点讨论码段关联;提出了流水域空间的概念。用于规约流水码值的生成,同时讨论垃圾值回收策略,以解决企业中对废弃流水码值如何进行重用的问题;提出了基于索引的数据存取机制,以保证在编码数据存储量比较大的情况下系统的存储效率。所提出的模型已应用于航天飞行器协同设计系统3.0版中,取得了较好的效果。 相似文献
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为保证船舶制造精度、降低造船成本及确定合理的船体焊接工艺,都需要对设计船体进行相关参数的预算,在借助计算机进行相关参数计算时船体数据库的建立和管理至关重要.针对船体的结构特性及其设计制造时的分类方法,依据PDM实施规范组织规划船体整体及分部结构,以材料清单为组织核心确定船体各部分数据及其相互之间关系的配置管理方案,依据现代船舶分段装配工艺确定其分类存储方法和编码规则,从而建立起符合PDM实施规范的船体数据库系统. 相似文献
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In-Ho Song Jeongsam Yang Beom Park 《Journal of Mechanical Science and Technology》2008,22(11):2180-2189
Given that the amount of product data in firms is explosively increasing, a PDM system for effective data management is considered
indispensable for product development. However, considerable time and specialized human resources are needed to customize
a generic PDM system for satisfying the specific requirements of individual firms. To overcome this problem, we propose the
use of UML object models in a PDM authoring framework. A PDM authoring framework, which provides authoring functions for the
effective customization of PDM systems, will reduce the need for the intervention of PDM specialists in the design of the
object models of the PDM system. We describe how a PDM authoring framework may be designed by using UML object models, and
show how model-oriented application development (MOAD), in conjunction with the PDM authoring framework, can be used to build
object models into a PDM system. Furthermore, we confirm the value of the framework by evaluating its performance under several
conditions.
This paper was recommended for publication in revised form by Associate Editor Dae-Eun Kim
Inho Song is a postdoctoral associate in the Department of Mechanical Engineering, Carnegie Mellon University, USA. He received the
Ph.D. degree in Mechanical Engineering from Hanyang University, Seoul, Korea in 2007. From 2002 to 2007, he served as a CAx
team leader of the INOPS Company (CIES R&D Center), Seoul, Korea. He has developed the sketch-based CAD system for an automotive
company. His research interests include collaborative design, sketch-based CAD, geometry translation, geometry compression,
product data exchange, PDM/PLM, digital manufacturing, and virtual reality.
Jeongsam Yang is an assistant professor in the Department of Industrial & Information Systems Engineering and is leading the CAD laboratory() at Ajou University. He worked at Clausthal University of Technology (Germany) as a visiting researcher and the University
of Wisconsin-Madison (USA) as a postdoctoral associate. He obtained his Ph.D. in mechanical engineering in 2004 at KAIST.
His current research interests are product data quality (PDQ), VR application in product design, product data management (PDM),
knowledge-based design system, and STEP.
Peom Park is a professor in the Department of Industrial & Information Systems Engineering and is leading the Human Technology Research
Center and Human Factors/HCI laboratory () at Ajou University. He worked on HCI and Telecommunication system at ETRI as a senior researcher. He obtained his Ph.D.
in Industrial and Manufacturing Systems Engineering at Iowa State University on 1992. His current research interests are uT
applications, u-Healthcare/Telemedicine, Telematics and Ergonomic/Safety Design. 相似文献
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主流三维CAD系统侧重于产品的几何模型描述 ,其容差信息的描述方法对容差分析与综合的支持有限。容差设计是装配设计的主要工作之一 ,直接影响到产品的可装配性。航空产品研制过程中通常用工艺余量来补偿装配累积误差 ,不合理的余量将导致装配效益低下。因此 ,本文提出了一种新的容差建模方法———支持无余量装配的容差语义建模技术 ,建立了支持无余量装配的容差语义模型。本模型包含父子装配单元之间的从属关系、装配单元之间的约束关系和零件的属性等信息 ,采用统一建模语言 (UML)进行描述 ,并给出了实例对本方法进行了验证。本模型能够较全面地表达产品的设计意图 ,为余量优化设计、装配容差分析与综合提供必要的信息支持。 相似文献
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On the basis of the requirements of a product data management system (PDM) for the flexible coding system, the principle of
the flexible coding system oriented multi-view is analyzed. Generation and utilization of coding should be associated with
the context of the object. The architecture of the flexible coding system oriented multi-view is studied and the implementation
class diagram of the system is designed. The system can support the establishment of five types of code segments, provide
the tools of flexible defining coding rules and drive the automatic generation of object coding in different views (contexts).
On the foundation of the characteristics of the system, coding for parts is taken as a sample to validate and elaborate the
flexible coding process of the system.
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Translated from Transactions of Beijing Institute of Technology, 2006, 26(1): 14–18 [译自: 北京理工大学学报] 相似文献
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建立了复杂产品设计知识的功能-行为-结构映射模型和组织模型,集成封装了功能信息和几何信息,设计了功能分解算法来获得结构方案并将方案存储于知识库中,提高了可重用设计中的知识表达与处理能力。该方法可快速响应设计需求,并已应用于叉车的大批量定制生产中。 相似文献
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文章首先分析了移动智能体的主要特点,简要介绍了UML定义,分析UML建模的基本思想,利用UML描述和分析了基于移动智能体的入侵检测系统。 相似文献