基于QFD、TRIZ和田口方法的问题解决理论研究

针对传统QFD技术仅能提出问题而不能解决问题的缺陷,提出了以QFD的质量屋为基础、以TRIZ理论为问题解决工具、以田口方法的损失函数为度量标准的QFD问题解决理论。该理论以产品功能为纽带,利用TRIZ理论的物质——场分析和冲突问题解决矩阵,可使设计人员获得实现功能的具体途径及解决问题的适用原理。通过田口的实验设计方法和损失函数可以确定实现功能的最佳参数组合。给出了解决问题和确定参数最佳组合的具体步骤。

Study on problem-solving theory based on QFD, TRIZ and Taguchi methods

To overcome traditional QFD's weakness of not being a problem-solving tool,an improved theory is proposed based on HOQ of QFD,innovated by TRIZ and measured by the loss function of Taguchi methods.Considering function is the common objective of QFD,TRIZ and Taguchi Methods,the way to obtain the function and the principles to eliminate contradictions between functions is scientifically ascertained through substance-field analysis and contradiction matrix of TRIZ.Optimum parameters level is determined by design of experiment and loss function.A detailed step is given to the problem-solving theory.