融合QFD、TRIZ和田口方法的产品概念设计方法

QFD、TRIZ及田口方法都是在概念设计过程中使用的方法。QFD是从顾客需求出发寻找产品最佳设计的关键技术,TRIZ理论是解决创新问题的有效方法,田口方法是转化创新结果的利器。本文在比较和分析3种方法各自特点的基础上,讨论了三种方法在概念设计过程中的相互作用,提出了将三者集成为一个理想的概念设计方法,该方法将最大限度地发挥各自的优势,弥补不足,从而实现设计质量创新。     

基于QFD与TRIZ技术工具的产品概念设计方法

为消除产品概念设计过程中可能产生的二层问题的负面影响，提出了一种基于质量功能配置与创造性解决问题理论的三种技术工具综合的产品概念设计方法。该方法通过质量功能配置的质量屋分析确定需要改善的零部件；在对零部件进行负相关分析的基础上，应用创造性解决问题理论技术工具提出解决一对质量特性负相关的方案；然后通过多次循环的质量功能配置分析与创造性解决问题理论技术工具应用，预测可能产生的二层问题并降低其负面影响，进而形成有效的产品概念设计方案。通过在某全自动洗衣机研发过程中的实际应用，验证了该方法的有效性和实用性。     

QFD与TRIZ理论在大学教学环节中的应用

在大学教学环节中运用质量功能展开理论（QFD）和发明问题解决理论（TRIZ）,将TRIZ理论作为培养学生创新能力的指导思想,同时利用QFD理论对教学过程进行管理,建立教学管理质量屋,达到提高教学质量、培养学生创新能力的目的。以《产品设计》课程为例,说明在教学管理中应用QFD理论的具体过程。     

客户协同设计中基于QTF的产品创新方案生成研究

综合运用质量功能展开、TRIZ和模糊DEA方法构建了客户协同设计产品创新方案生成过程框架模型,并给出其具体步骤;然后对其中的关键环节分别提出基于Web服务本体描述语言并按照概念型、规则型和实例型进行统一转换的方法,基于TRIZ工具的产品创新瓶颈问题求解方法及基于模糊DEA的产品创新方案评估模型;最后,以某型号电冰箱的产品创新方案生成过程为例,验证了提出方法的可行性和有效性。     

TRIZ理论对QFD中问题的改进

通过研究TRIZ理论在QFD中的应用及发展现状,针对传统QFD技术仅能提出问题而不能解决问题的缺陷,研究提出了以QFD的质量屋为基础、以TRIZ理论为问题解决工具,改善传统QFD中的几个关键问题的方法,最后结合具体案例,实现了TRIZ理论在QFD中的应用。     

基于质量功能展开、发明问题解决理论和仿生学的产品创新设计

为了提高产品创新设计效率,提出一种基于质量功能展开（QFD）、发明问题解决理论（TRIZ）和仿生学的产品创新设计过程模型。首先,根据客户需求利用QFD理论构建产品质量屋,结合TRIZ的矛盾冲突理论将负相关技术特性映射到对应的发明原理,综合考虑发明原理三大准则筛选出合适的发明原理;然后,搜索基于发明原理的生物实例库获得多个生物实例,分别计算其与设计目标之间的功能流相似度并将相似度值最高的作为仿生原型;最后基于建立好的生物系统数据库、产品系统数据库和协同中间件数据库,利用协同中间件进行跨领域多层次协同映射,得到产品仿生设计方案。利用上述过程模型对风扇叶片进行创新设计,并结合FLUENT软件进行数值模拟,结果表明风扇叶片在提高风量和降低噪声性能上得到了一定的改善,验证了所建立设计模型的可行性与有效性。     

基于TRIZ的机械产品突破性创新设想产生过程研究

为解决机械产品突破性创新设想产生的问题,将发明问题解决理论（TRIZ）应用于新产品开发的模糊前端阶段。在建立产品技术系统主功能物质-场模型的基础上,提出了机械产品突破性创新的方法;基于TRIZ全局理想化,对实现产品主功能的技术子系统进行了功能裁剪及可用资源分析,进而利用技术进化理论对实现产品主功能的技术子系统进行了技术预测,并应用计算机辅助创新软件（CAI）工具建立了机械产品突破性创新设想产生过程模型。中药滴丸机创新设想的产生验证了该方法的有效性。     

基于FTA与TRIZ的机电产品故障分析

将TRIZ中的标准解反向转换,得到可以分析系统故障原因的方法.并替代传统FTA中"列举故障原因"所采用的方法,提出一个结合了FTA和TRIZ优点、能够对系统故障进行定性和定量分析的综合方案.     

基于SWOT/TRIZ/QFD的产品开发策略形成过程研究

SWOT分析、质量功能配置(QFD)是制定企业策略规划的工具,但传统的SWOT分析不能解决存在于SWOT矩阵中的冲突问题,QFD也存在着对顾客识别不够充分的缺陷.文中利用TRIZ理论改进SWOT分析,将其分析结果作为源输入对QFD进行补充,提出了将SWOT-TRIZ-QFD集成并应用于产品开发策略形成过程的方法.最后通过案例分析验证了该方法的可行性.     

基于QFD和TRIZ的产品形态创新方法

为减少形态创新设计思维过程的主观性和偶然性,帮助设计师快速、准确地发现和确定产品形态创新点,提出了一种基于质量功能配置和发明问题解决理论的产品形态创新设计新方法.该方法通过构建一个改进的面向形态设计的质量屋模型分析并确定产品形态设计中的冲突,结合可视化的TRIZ 40条创新原理资料库,应用TRIZ来解决设计冲突,以此获得形态创新点和创新形态设计方案.运用本文提出的方法,完成了插座的形态创新设计.     

A rough set enhanced fuzzy approach to quality function deployment

Quality function deployment (QFD) provides a systematic methodology to assist companies in developing quality products that are able to satisfy customer needs. The house of quality (HOQ), as the first phase of QFD, plays the most important role in product development. Frequently, fuzzy numbers are used to quantify the vagueness of linguistic terms so as to facilitate subjective assessments in the HOQ. However, the issue concerning how to determine the boundary intervals of fuzzy numbers remains unresolved. This work proposes a novel approach based on rough set theory, and introduces two concepts called rough number and rough boundary interval to address this issue. A comparative case study presented in this work shows that the proposed approach has significant advantages compared to the prevailing fuzzy number based method in processing subjective linguistic assessments in QFD.     

发明问题解决理论：TRIZ——TRIA过程、工具及发展趋势

介绍TRIZ解决发明问题的过程及物质－场分析、标准解、冲突及其描述、冲突解决原理、ARIZ算法等主要工具。提出建立物质－场分析的新型符号系统、完善冲突及解决理论、更新ARIZ算法及TRIZ与QFD、稳健设计等集成是其发展趋势。     

集成QFD、VE、TRIZ的新产品开发系统QVTS研究

基于先进的设计开发理论理念，结合企业新产品开发流程及企业新产品开发的实际情况，为了提高设计效率，通过对发明问题解决理论（TRIZ）、质量功能配置理论（Quality Function Deployment-QFD）、价值工程理论（Value Engineering-VE）等设计方法的研究和应用，提出了集成QFD、VE、TRIZ理论的面向成本的新产品研究开发系统QVTS。系统规范了从设计需求分析到设计方案提出等过程的设计流程，给出了各阶段解决具体问题的方法和工具。对于实现产品设计方案的技术经济综合优化、降低产品成本和提高产品竞争力有着十分重要的意义。     

基于技术进化的产品设计过程研究

在介绍发明问题解决理论(TRIZ)中的S曲线、技术成熟度预测、技术进化模式、技术进化路线的基础上,提出了产品核心技术的两条性质,并且提出技术进化是按TRIZ中进化路线所示结构状态序列不断替代的过程。依据该原理及过程建模方法IDEF3,建立了一种新的产品设计过程模型。用一个工程实例说明了该模型的应用。     

A quality function deployment methodology with signal and noise ratio for improvement of Wasserman’s weights

Quality function deployment (QFD) has attracted much attention in not only the quality management field but also other engineering fields. The original concept of QFD is focused only on the voice of customers, which means that the needs of customers should be satisfied from the design stage of products. However, some problems were found in using subjective and qualitative data when constructing a house of quality (HOQ). To solve the problems, Wasserman presented a methodology to consider correlation weights on the top matrix of HOQ, but the weights are subjective data and can not guarantee consistency and objectivity. The Wasserman’s weights are randomly determined under subjective conditions. This research applies Taguchi’s robust design method as another method for obtaining the HOQ top matrix weights. With the new weights, S/N-QFD is deployed, and the result of S/N-QFD is compared with W-QFD. As an application example, with a real process and quality data of a representative company product, the relationship and the correlation between the process characteristics and the quality characteristics are analyzed. Finally, this paper presents a new QFD processing methodology to determine the weights with more consistent and objective data.     

A quality function deployment methodology with signal and noise ratio for improvement of Wasserman’s weights

Quality function deployment (QFD) has attracted much attention in not only the quality management field but also other engineering fields. The original concept of QFD is focused only on the voice of customers, which means that the needs of customers should be satisfied from the design stage of products. However, some problems were found in using subjective and qualitative data when constructing a house of quality (HOQ). To solve the problems, Wasserman presented a methodology to consider correlation weights on the top matrix of HOQ, but the weights are subjective data and can not guarantee consistency and objectivity. The Wasserman’s weights are randomly determined under subjective conditions. This research applies Taguchi’s robust design method as another method for obtaining the HOQ top matrix weights. With the new weights, S/N-QFD is deployed, and the result of S/N-QFD is compared with W-QFD. As an application example, with a real process and quality data of a representative company product, the relationship and the correlation between the process characteristics and the quality characteristics are analyzed. Finally, this paper presents a new QFD processing methodology to determine the weights with more consistent and objective data.     

An object-oriented reference model of the fuzzy front end of the new product introduction process

The global pressures of the modern market are placing an ever-increasing emphasis on the rapid development and introduction of new products. Central to this aim is the implementation of an effective business process for managing and controlling product innovation. Research has shown that the front end stages of the so-called new product introduction (NPI) process are weakest in a high proportion of companies and direct support is needed in this area. This paper describes how an object-oriented methodology has been applied to develop a reference model and architecture to facilitate the re-engineering and implementation of a high quality business process and help remove the fuzziness of the critical early stages of NPI. The results from the application and testing of this tool within a wide range of different companies are summarised and used to help derive conclusions regarding the validity of the research.     

基于FQFD、TRIZ及田口方法集成的产品概念设计过程

FQFD、TRIZ及田口方法都是在概念设计过程中使用的方法,且它们中的任何一种方法都是针对设计过程中的某一个方面,将它们三者集合在一起,则会形成很有力量的顾客需求驱动的产品概念设计过程。本文通过讨论这三种方法在概念设计过程中的相互作用,将三者集成一个理想的概念设计方法。     

Interactive training model of TRIZ for mechanical engineers in China

Abstract： Innovation is a process of taking an original idea and converting it into a business value, in which the engineers face some inventive problems which can be solved hardly by experience. TRIZ, as a new theory for companies in China, provides both conceptual and procedural knowledge for finding and solving inventive problems. Because the government plays a leading role in the diffusion of TRIZ, too many companies from different industries are waiting to be trained, but the quantity of the trainers mastering TRIZ is incompatible with that requirement. In this context, to improve the training effect, an interactive training model of TRIZ for the mechanical engineers in China is developed and the implementation in the form of training classes is carried out. The training process is divided into 6 phases as follows： selecting engineers, training stage-l, finding problems, training stage-2, finding solutions and summing up. The government, TRIZ institutions and companies to join the programs interact during the process. The government initiates and monitors a project in form of a training class of TRIZ and selects companies to join the programs. Each selected companies choose a few engineers to join the class and supervises the training result. The TRIZ institutions design the training courses and carry out training curriculum. With the beginning of the class, an effective communication channel is established by means of interview, discussion face to face, E-mail, QQ and so on. After two years training practices, the results show that innovative abilities of the engineers to join and pass the final examinations increased distinctly, and most of companies joined the training class have taken congnizance of the power of TRIZ for product innovation. This research proposes an interactive training model of TRIZ for mechanical engineers in China to expedite the knowledge diffusion of TRIZ.     

基于QFD和TRIZ的模卡电视设计分析

首先对QFD和TRIZ的概念进行了简介;并提出了两者的集成模型;然后将此模型应用于模卡电视的设计中,先后进行了需求分析,建立质量屋同时用TRIZ解决冲突。全文说明并验证了这一集成模型的设计方法。