Fuzzy Evaluation of Product Module Partition Based on Lifecycle Information

How to evaluate the module partition results is a key problem to modular design, especially from the viewpoint of product lifecycle. First, this paper proposes an evaluation model consist of different information from two aspects to describe modules and products based on their lifecycle scenario. Second, the formulas are established to express the relationships between factors. Then use the triangle fuzzy functions to transform the qualitative evaluation into quantitative evaluation, so that it is easy to be analyzed. The weight and evaluation value calculating methods are given. At last, a case study is given based upon the working device system of wheel loader, and the result indicates that the model and the calculation method are available and effective.