多质量特性产品参数设计灰靶模型

Grey Target Model for Parameter Design of Multi-quality-characteristic Products

提出一种多质量特性的产品参数选择灰靶模型来辅助工程设计者进行决策。结合正交试验设计,针对多质量特性产品参数选择的具体问题,研究了灰靶模型的要素及相互间关系;提出一组改进型田口质量损失函数,并将其损失值作为灰靶模型效果的基本测度。该模型能兼顾设计过程中的内外影响因素,判断出可取和不可取的参数组合,从而确定方案的满意区域;根据效果测度值可以确定多质量特性产品的最优参数水平组合。

A grey target model for parameter choice of multi-quality-characteristic products was proposed to aid engineering designers to make decisions. Based on orthogonal experimental design, el- ements and relationships among them of the grey target model were studied for the parameter choice of multi-quality-characteristic products. A group of improved Taguchi quality loss functions were de- veloped, and their values were thought to be the basic measures for the effects in the grey model. The internal and external factors were considered simultaneously in the design process. According to the effect value, acceptable parameter combinations were distinguished from unacceptable ones to get a satisfactory domain for design. Moreover, based on the effect value, the optimal parameter combina- tion for multi-quality-characteristic products can be obtained.