基于产品知识规划的设计重用研究

发布时间：2018-05-20 10:06

本文选题：知识规划模型 + 显性知识重用　；参考：《合肥工业大学》2017年硕士论文

【摘要】：产品设计是产品开发的关键环节,当今市场越来越追求短的交货期,快速响应客户需求成为占据市场主动性的关键。产品设计过程中,一半以上都是利用已有设计知识,因此知识重用在产品设计过程中意义重大。然而,目前设计知识重用的研究工作主要集中在设计知识的表示和建模等方面,对知识本身的重用研究较少。本文提出了大规模定制环境下基于知识规划的设计知识重用思想,研究了面向产品设计的知识规划系统,建立了知识规划的综合模型,并在此基础上分别研究了显性知识重用和隐性知识重用的方法及其影响因素,然后基于知识重用讨论了如何更好地进行产品配置。本文主要从以下几点进行详细研究:(1)研究了面向产品设计的知识规划系统,介绍了产品设计知识的内容及特点,并对产品设计不同阶段的设计知识进行了分类,对知识规划的思想进行了系统的论述,建立了知识规划综合信息模型,从横向和纵向两个不同维度对设计知识进行了综合表达。(2)以已有实例知识为例研究了显性知识的重用技术,把产品性能作为出发点,结合模糊聚类的方法对已有实例库进行模糊划分,通过相似度计算的方法寻找与客户需求相近的产品类别,应用基础反馈外延(Decision-making of Feedback Extension,DFE)的模糊决策方法优选出最终的重用方案,并通过实例验证了所提方法的可行性。(3)将客户需求作为驱动对隐性知识的获取及重用进行研究,对产品设计过程进行了细分,借助现有媒体科技对客户隐性知识进行获取,应用灰色关联方法对客户需求重要度进行分析,从而确定产品设计重心。(4)基于知识重用研究了产品配置的方法,以SOM(Self Organization Map)神经网络为工具,应用QFD(Quality Function Deployment)方法对分解的客户需求进行配置需求转化,并以此作为SOM神经网络输入前的预处理,通过SOM神经网络模型的分类,获得绝大多数客户倾向的产品,从而更好地进行产品配置工作。最后通过实例,验证该方法的有效性。
[Abstract]:Product design is the key link of product development. Nowadays, the market is increasingly pursuing short delivery time, and rapid response to customer needs has become the key to occupy the market initiative. In the process of product design, more than half use of the existing design knowledge, so knowledge reuse is of great significance in the process of product design. However, at present, the research work of design knowledge reuse mainly focuses on the representation and modeling of design knowledge, and less on the reuse of knowledge itself. In this paper, the idea of knowledge reuse based on knowledge planning in mass customization environment is put forward, and the knowledge planning system oriented to product design is studied, and a comprehensive model of knowledge planning is established. On this basis, the methods of explicit knowledge reuse and tacit knowledge reuse and their influencing factors are studied, and then how to better product configuration based on knowledge reuse is discussed. This paper studies the knowledge planning system of product design, introduces the content and characteristics of product design knowledge, and classifies the design knowledge in different stages of product design. The idea of knowledge planning is discussed systematically, and a comprehensive information model of knowledge planning is established. The design knowledge is expressed synthetically from two different dimensions: horizontal and vertical.) taking the existing case knowledge as an example, the reuse technology of explicit knowledge is studied, and the product performance is taken as the starting point. Combined with the fuzzy clustering method, the existing case library is divided into fuzzy parts, and the product categories similar to the customer's needs are found by similarity calculation, and the final reuse scheme is selected by applying the fuzzy decision method of Decision-making of Feedback extension (DFE), which is based on the basic feedback extension of Decision-Decision-making of Feedback extension (DFE). The feasibility of the proposed method is verified by an example. 3) the customer demand is taken as the driving force to study the acquirement and reuse of tacit knowledge, the process of product design is subdivided, and the existing media technology is used to acquire the tacit knowledge of the customer. Based on knowledge reuse, the method of product configuration is studied, and the SOM(Self Organization Map-based neural network is used as a tool to analyze the importance of customer demand, so as to determine the focus of product design. The QFD(Quality Function deployment method is used to transform the disassembled customer demand, which is used as the pre-processing of SOM neural network input, and through the classification of SOM neural network model, the majority of customer preference products are obtained. In order to better product configuration work. Finally, an example is given to verify the effectiveness of the method.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB472

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