关键词: 机械零件, 材料性能, 单因素评价, 隶属函数, 三分法

Abstract: How to evaluate material properties is an important problem in applying fuzzy decisions to select the most suitable machinery port material. As an example to deal with the problems like this,a subordinating function of Single factor evaluation for metal's properties is presented by three-division methodin this paper.It is confirmed that this method together with fuzzy decisions conforms to the actual situation of engineers consideration in the process of mechanical design.

Key words: machinery parts, material property, single factor evaluation, subordinating function, three-division method