Aerospace product performance and test integrated design parameter selection method based on gray theory

The invention relates to an aerospace product performance and test integrated design parameter selection method based on a gray theory, and is applicable to the field of aerospace product design. Themethod comprises the following steps of 1, selecting a design parameter and an assessment index, and separately forming a scheme set and an attribute set; 2, scoring the design parameter according tothe assessment index, and forming an objective decision matrix; 3, building an ideal optimal vector, performing normalized treatment on the objective decision matrix, and computing gray association coefficients between normalized objective decision matrix elements and the ideal optimal scheme vector; 4, computing the gray association coefficients with weights to acquire gray association degrees; and 5, ranking according to the gray association degrees, and selecting the quantity of the design parameters according to a parameter cutting principle. The method provided by the invention has the beneficial effects that 1, t