复杂产品工程变更传播风险研究

发布时间：2018-04-22 06:18

本文选题：复杂产品 + 复杂网络　；参考：《江苏科技大学》2017年硕士论文

【摘要】：工程变更是复杂产品生产制造过程中普遍存在的问题。复杂产品具有的产品生产周期长,设计制造工序多杂,精确度要求高等特点,也决定其不可避免的面临着工程变更。复杂产品自身“边设计、边生产、边修改”的特点更是加剧了变更传播管理和干预的难度。制定详细的工程变更计划,控制变更带来的生产设计风险,把不确定性带来的影响降到最低,将有助于提高产品的生产效率,降低生产成本,形成企业独特的竞争优势。因此研究复杂产品工程变更风险传播具有十分重要的现实意义。本文基于此,从复杂产品工程变更零部件筛选、依赖关系定量化等角度进行研究,以期望文章研究的筛选指标、预测方法、风险控制方法给企业的现实生产运作中出现的工程变更提供有益的借鉴。本文以复杂产品零部件的工程变更为研究对象,指出了我国现阶段还处于制造业大国,复杂产品生产制造举足轻重的地位的研究背景,以及针对这一研究的理论意义和实际意义。通过分析国内外相关的研究,指出了目前工程变更研究依然存在的研究局限性,结合工程变更管理、工程变更传播、复杂网络、设计结构等相关理论知识,首先对本研究的工程变更的类型进行了界定;其次参照复杂网络关键节点筛选方法,设计了一套复杂产品工程变更Hub节点的筛选指标体系;再者结合设计结构矩阵,对复杂产品中存在的工程变更传播进行了分析,并从直接影响与间接影响两个维度定义了工程变更的风险,以综合风险的视角构建了复杂产品工程变更传播风险分析模型。最后文章以型号HFC6564-84K的船用发电机为模型,验证了所构建模型的合理性,并在此基础上,对复杂产品工程变更涉及的零部件进行了模块的划分,分析了各个模块工程变更的传播方式,并提出了相关的应对建议。
[Abstract]:Engineering change is a common problem in the manufacturing process of complex products. Complex products have the characteristics of long production cycle, complex design and manufacturing processes, high precision requirements, etc., which also determine that the complex products are inevitably faced with engineering changes. The characteristics of complex products "design, production and modification" make it more difficult for change communication management and intervention. Making detailed engineering change plan, controlling the risk of production design brought by the change and minimizing the influence brought by uncertainty will help to improve the production efficiency, reduce the production cost and form the unique competitive advantage of the enterprise. Therefore, it is of great practical significance to study the risk propagation of complex product engineering change. Based on this, this paper makes a study from the angles of parts selection and dependency quantification of complex product engineering changes, in order to expect the selection index and prediction method of the article. The method of risk control provides a useful reference for engineering changes in the actual production operation of enterprises. This paper takes the engineering change of complex product parts as the research object, and points out the research background that our country is still in a large manufacturing country at present, and the production and manufacture of complex products play an important role in the research background. And the theoretical and practical significance of this study. Based on the analysis of relevant research at home and abroad, this paper points out the limitations of current research on engineering change, including engineering change management, engineering change propagation, complex network, design structure and so on. Firstly, the type of engineering change in this study is defined; secondly, according to the screening method of key nodes in complex network, a set of screening index system of Hub node for complex product engineering change is designed; thirdly, the design structure matrix is combined. This paper analyzes the spread of engineering change in complex products, defines the risk of engineering change from the two dimensions of direct and indirect influence, and constructs the risk analysis model of engineering change propagation of complex products from the perspective of comprehensive risk. Finally, taking the marine generator of model HFC6564-84K as the model, the rationality of the constructed model is verified, and on this basis, the parts involved in the complex product engineering change are divided into modules. The communication mode of each module engineering change is analyzed, and relevant suggestions are put forward.
【学位授予单位】：江苏科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：F426

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