质量功能配置在阀门研发中的应用研究

发布时间：2018-11-07 15:47

【摘要】：随着社会经济的发展，企业面对的内外部环境越来越复杂，市场竞争也日益激烈，同时，顾客对产品的需求也更加多样化，如何最大程度地满足客户需求已成为产品设计的关键。质量功能配置（QFD）是一种系统方法，它将顾客的思想转化为产品、服务的设计、制造和生产过程。在整个产品开发过程中，都是以保证客户需求出发，把质量观念贯穿于设计过程始终，使设计过程始终不偏离顾客需求，达到适合市场的目的。本文介绍了质量功能配置的概念、原理、应用时机及质量屋的结构，并以闸阀产品为研究对象，将质量功能配置的方法应用到闸阀产品的开发和质量改进中。在闸阀产品的顾客满意度评价过程中，首先利用亲和图得到了闸阀客户需求的层次结构，然后运用层次分析法得到客户需求的权重，接着应用模糊综合评价法对顾客满意度做出评价，得出闸阀的“抗冲击力”这一项为目前最需改善的地方。在构造闸阀产品规划质量屋中，先是确定了技术特征的自相关矩阵以及客户需求与技术特征的相互关系矩阵，之后通过相关计算获得产品技术特征的重要度及目标值，从而确定顾客需求规划矩阵，，在此基础上建立阀门产品规划质量屋。通过确立关键零件特征的目标值及重要度，建立起闸阀零件规划质量屋。最后，以闸阀的“抗冲击力”最为相关的材料韧性为输入，以闸阀的钢制闸板典型工艺过程为输出，建立闸阀的工艺规划质量屋，并应用基于响应面法的质量特征优化技术对闸板的工艺过程进行优化，得出最优解。本课题将QFD技术较为全面地应用于阀门产品的设计与制造过程中，并对如何利用响应面法将其加工工艺进行优化做了有益的尝试，为该类企业如何应用QFD技术进行新产品研发和老产品的质量改进探索了有效路径。
[Abstract]:With the development of social economy, the internal and external environment of enterprises is becoming more and more complex, and the market competition is becoming increasingly fierce. At the same time, customers' demand for products is more diversified. How to meet the needs of customers to the greatest extent has become the key to product design. Quality function configuration (QFD) is a systematic approach that transforms customer thinking into product, service design, manufacturing and manufacturing processes. In the whole process of product development, it is necessary to ensure the customer's demand, run through the concept of quality in the design process, and make the design process not deviate from the customer's demand, so as to reach the goal of adapting to the market. This paper introduces the concept, principle, application opportunity and the structure of quality house of quality function configuration, and applies the method of quality function configuration to the development and quality improvement of gate valve product by taking gate valve product as research object. In the process of customer satisfaction evaluation of gate valve products, the hierarchy structure of gate valve customer demand is obtained by using affinity graph, and then the weight of customer demand is obtained by AHP. Then the fuzzy comprehensive evaluation method is used to evaluate the customer satisfaction, and it is concluded that the "impact resistance" of the gate valve is the most needed to be improved at present. In the construction of gate valve product planning quality room, the autocorrelation matrix of technical features and the interrelation matrix between customer demand and technical characteristics are first determined, and then the importance and target value of product technical characteristics are obtained by correlation calculation. Based on the determination of customer demand planning matrix, the valve product planning quality room is established. By establishing the target value and importance of the key part features, the quality room of gate valve part planning is established. Finally, taking the most relevant material toughness of the gate valve as input and the typical process of steel gate as the output, the process planning quality room of the gate valve is established. The quality characteristic optimization technique based on response surface method is applied to optimize the process of the gate and the optimal solution is obtained. In this paper, the QFD technology is applied to the design and manufacture of valve products comprehensively, and a beneficial attempt is made on how to optimize the processing process by using the response surface method. This paper explores an effective way to improve the quality of new products and old products by using QFD technology in this kind of enterprises.
【学位授予单位】：西华大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH134

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