Optimization design of the stability for the plunger assembly of oil pumps based on multi-target orthogonal test design

Abstract

In order to solve the problem including huge calculated amount and confirming the weights unreasonably which exist in multi-target orthogonal test method,multi-target orthogonal test design was optimized by matrix analysis.Three-layer structure model and the layer structure matrix of orthogonal test were established firstly,then weight matrix of test index can be worked out by matrix of each layer multiplication and the weighs of the factors and levels having influences on the tests' results can be calculated.Finally the optimal plan and the important order of the factors' influences on the tests' index values can be determined according to the weights.The results show that the problem of selecting the optimal plan in multi-target orthogonal test design can be solved very well.