The Application of Multi-object Grey Decision-making in Design Proposal Selection of Rolling Bearing

According to different targets and uses,the design schemes are different.Each evaluating factor is studied and analyzed,and then the method of the multi-object grey situation group decision-making appending the objective weight is put forward.Aim of this research is to produce a kind of long life,high reliability and excellent performance rolling bearing.The basic conceptions of multi-object grey situation group decision-making are introduced in this paper.The calculation method of three effect measurements is explained.And the steps of the multi-object grey situation group decision-making are given in details.This method is used in the design proposal selection of rolling bearing.Firstly,the model of multi-object grey situation group decision is founded,and then the model is analyzed and calculated,lastly the most excellent decision is worked out.And the example can prove that the method of multi-object grey situation group decision-making is practicable and effective,and it also provides a new decision-making method.