【作者】 王保保；

【导师】 徐国华；

【作者基本信息】 西安电子科技大学 ， 机械制造， 2000， 博士

【摘要】 本文研究Intranet环境下先进制造系统的产品数据管理（PDM）的产品表示、存储和运用的理论、方法和技术，重点放在系统的建模和应用方面。 给出了先进制造系统PDMS体系结构建立过程和Intranet/Internet平台上基于遗产系统和全新PDMS构架步骤。 对CSG，Brep，STEP等主流表示方法进行研究，给出了一种适应PDMS标准格式STEP的C⁺⁺实现算法。得到用Java语言实现基于关系数据库和空间数据库的产品数据库的结果。用集成开发环境JBuilder实现了几种主流产品数据库异质数据的管理和互相操作，实现了客户/服务器计算模式下服务器方的软件-Servelet，给出对等网条件下的协同实现技术。 提出项目项目跟踪的观点，实现了项目跟踪的展现方法和算法，并给出在资源约束下细化模型。将先进制造系统的工作流分为办公工作流和生产工作流，讨论了在PDMS基础上的工作流的Petri网表达方式，并实现了一个实际办公工作流。提出了适应先进制造系统的PDMS工作流方法模型。 主要创新点如下： 1提出了产品STEP格式的双向链表算法并用C⁺⁺实现；用Java对象关联向 量实现了关系数据库、空间数据的结合，克服了关系数据库对空间数据 的局限性。 2用JDBC实现PDMS异质数据库Oracle，SQLServer和DB2的互连和互操作， 给出了基于产品数据库的服务器端Servelet实现过程。给出对等网（peer） 条件下精简型应用的产品数据同步的算法。 3提出了项目跟踪的概念，给出了基于Outline实现项目跟踪的树型递归 算法和实现的过程，提出了项目跟踪在资源约束下一致性分析主-细 MD（Master-Detail）模型。 4给出了先进制造系统的加工工作流模式，实现了面向角色工作流系统和科 技档案管理系统。提出并实现了PDMS条件下工作流角色的系统配置方 案和操作机制。给出了PDMS环境下petri网工作流系统原型。更多还原

【Abstract】 The representation, storage and utilization of the product data in Advanced Manufacturing System are researched ,with focus on its modeling and application. The process of establishing PDMS in Advanced Manufacturing System based on Intranet and the process of constructing PDMS in both legal system and a complete new one are set out. A C++ algorithm of STEP for PDMS is realized through the research of CSG, Brep and STEP. Some useful results are obtained in the developing PDMS via relational and spatial database. Inter-operate among several mainstream heterogeneous database is implemented in Java, and Servlets in the client/server computing model is implemented . Cooperating of Data of simplify Product management in peer network is developed. Concepts of Project Tracing is proposed . Algorithm and displaying method of Project Tracing are realized , and Detail Model under the constraints of resource is given. Work flow of Advanced Manufacturing System can be classified into office workflow and manufacturing workflow. Petri-net means of expression of the workflow based on PDMS is discussed, with a practical office workflow realized. A model of a manufacturing workflow adapted to PDMS of Advanced Manufacturing System is proposed. All innovations are as follows: 1. STEP data form of products is realized with the method of Dual list Algorithm in C++ . The combination of relational database and spatial database is realized via JAVA Object Connect Vector ,the disadvantage of relational database over spatial database is overcome. 2. Inter-operation and interconnection of Oracle ,SQLserver and DB2 are implemented with JDBC, a realizing process of servelet based on PDM is given. Synchronous algorithm of Product data on the simplified application in peer network is developed. 3. Concepts of Project Tracing is proposed . Tree recursive algorithm and realizing process based on Outline are provided. Corresponding analytical Master-Detail model under constraints of resource is put forth. 4. A modej of a manufacturing workllow under Advanced Manufacturing System is proposed. A role oriented workflow system and scientific file management are developed. A role configuration Scheme and operation mechanism under PDMS are proposed and realized. A workflow prototype based on Petri- net under PDMS is put forth.更多还原