歼击机总体设计相关参数的模糊综合评判

THE FUZZY SYNTHETIC JUDGEMENT OF CORRELATING PARAMETER OF FIGHTER DESIGN

用模糊数学的方法,建立能够综合表达歼击机近距格斗机动性能的相关参数表达式。该参数可作为飞机总体设计阶段的设计目标,还可作为综合衡量歼击机机动性能的指标。

An expression of correlating parameter is developed which can be used to synthetically express the close combat maneuverability of fighters by the method of fuzzy mathematics. On the basis of analysis of fighter maneuvering performances, this paper proposes the parameters ωA, ωs and SEP to measure the maneuvering performances. The linear weighted method, which is one of the basic methods of transforming several objects to a single object in mathematical programming,is used to determine the form of the correlating parameter expression. The focal point of this paper work is to determine the weight coefficients of maneuvering performances in the expression. In order to solve this problem, the inverse problem of synthetic judgment in fuzzy mathematics is employed. The development of the equation of fuzzy relationship in. this paper is based on the judgment data, which are gathered from many experts working in aeronautical field. Therefore, the expression of correlating parameter developed by this paper can be used in the design object in aircraft conceptual design stage and the judgement of synthetical measurement of the maneuverability of fighters.