基于PDM的叶片工艺数字化研究

发布时间：2018-04-29 13:01

本文选题：叶片 + 产品数据管理　；参考：《江南大学》2013年硕士论文

【摘要】：当今信息时代，信息化是企业有效占领市场的重要手段。围绕产品全生命周期，实现企业内部与外部的信息集成、过程集成是企业发展的必然趋势。大规模定制生产模式的出现，迫使制造型企业缩短产品制造周期，快速响应多变的市场需求。而在制造型企业的生产经营过程中，生产技术准备环节占据了大量时间，其主要包括工艺管理与工艺设计两方面内容。因此实现工艺过程管理与工艺设计数字化是企业缩短制造周期，提高企业整体效率的关键所在。本课题针对某叶片制造企业在工艺设计过程中遇到的问题，结合产品数据管理技术，分析研究了工艺设计过程与工艺设计方法，并提出了相应解决方案。首先，结合企业信息化的发展趋势分析了产品数据管理在工艺设计中的作用，并从总体上分析了工艺数字化的含义以及产生背景。产品数据管理作为实现企业信息集成的基础，管理与产品相关的技术文档与业务流程，为企业提供了完备的信息共享平台。工艺是企业中各种资源信息共同作用的结果，是多种信息的交汇点。阐明了课题研究的必要性与实用性。其次，针对企业的需求详细分析了工艺设计过程，明确企业的业务流程，并实现对工艺设计过程及文档的管理。将企业中的产品视为项目，按照项目管理的思想对工艺任务进行分解，同时按照“自顶而下、逐层细化”的原则对企业业务流程离散化具体化。并针对具体技术文档（即任务元）指定相应的任务签审流程，运用产品数据管理系统实现流程的数字化、可视化。在对工艺文件管理的基础上，分析研究叶片工艺规程的具体内容。课题所研究的对象为叶片，，形状极不规则并且质量要求较高。为实现叶片工艺的数字化，采用成组技术将主要产品分类，分析叶片的特征信息以及工艺信息，建立了叶片特征模型。在此基础上制定特征编码规则以实现特征信息的数字化；提出了衡量产品相似的算法，方便提取具有相似特征的工艺实例，通过人机交互实现新品工艺的设计。最后，运用PowerBuilder9.0开发了一套工艺数字化原型系统。对产品编码、检索相似产品以及人机交互工艺设计等模块作了详细介绍，初步实现了叶片工艺数字化。
[Abstract]:In the information age, information is an important means for enterprises to occupy the market effectively. The process integration is the inevitable trend of enterprise development, which focuses on the whole product life cycle and realizes the information integration inside and outside the enterprise. The emergence of mass customization (MC) has forced manufacturing enterprises to shorten the manufacturing cycle and respond to the changing market demand. In the process of production and management of manufacturing enterprises, production technology preparation takes up a lot of time, which mainly includes two aspects: process management and process planning. Therefore, realizing process management and process planning digitalization is the key to shorten the manufacturing cycle and improve the overall efficiency of the enterprise. In view of the problems encountered in the process planning of a blade manufacturing enterprise, combining with the technology of product data management, the process planning process and the process planning method are analyzed and studied, and the corresponding solutions are put forward. Firstly, the function of product data management in process planning is analyzed according to the development trend of enterprise informatization, and the meaning and background of process digitization are analyzed as a whole. As the foundation of enterprise information integration, product data management provides a complete information sharing platform for enterprises by managing the technical documents and business processes related to products. Process is the result of all kinds of resource information in enterprise, and it is the intersection of many kinds of information. The necessity and practicability of the research are expounded. Secondly, the process of process planning is analyzed in detail to meet the needs of the enterprise, and the business process of the enterprise is clarified, and the process of process planning and the management of documents are realized. The product in the enterprise is regarded as a project, the process task is decomposed according to the idea of project management, and the business process is discretized and concretized according to the principle of "from top to bottom, layer by layer refinement". According to the specific technical documents (I. E. task element), the corresponding task checking process is assigned, and the process is digitized and visualized by using the product data management system. Based on the management of process documents, the specific contents of blade process rules are analyzed and studied. The object of study is blade, which is irregular in shape and high in quality. In order to realize the digitization of the blade process, the main products were classified by group technology, and the characteristic information and process information of the blade were analyzed, and the blade characteristic model was established. On this basis, the feature coding rules are formulated to realize the digitalization of feature information, and an algorithm to measure the similarity of products is proposed, which is convenient to extract process examples with similar features, and realizes the process design of new products through man-machine interaction. Finally, a set of process digitization prototype system is developed by using PowerBuilder9.0. The modules of product coding, retrieval of similar products and human-computer interaction process design are introduced in detail, and the digitization of blade process is preliminarily realized.
【学位授予单位】：江南大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TH162

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