基于模糊层次分析法的编队内碰撞风险评价模型研究

编队内碰撞是编队飞行最大的安全威胁。为解决编队飞行灵活性与编队飞行安全的矛盾,建立了编队内各机碰撞风险评价模型指标体系,使用模糊互补判断矩阵确定了各指标的碰撞权重,实现了编队内各机碰撞的风险评估。以空军航空兵某部一架机型G与一架机型H混合双机编队为例进行了实证研究,结果表明,该模型简便易操作,可提高编队飞行训练效率。

On the evaluation of the collision risk in the flying formation based on the FAHP

The present paper is inclined to present its evaluation of the collision risk in the flying formation on the basis of the FAHP model.In order to deal with the contradiction between the formation flight flexibility and the problem involving its flying safety,the paper has managed to establish and propose a formation flight collision risk evaluation model in accordance with the index system so as to deal with the formation collision as a threat to the formation flight hierarchy process.To achieve the said purpose,first of all,based on the results of the research and analysis,we have classified the indexes closely related to the collision within the formation flight and established the index system according to the analytic hierarchical process.To be exact,we have managed to divide the risk index system of the formation flying collision into four categories,that is,the aircraft,the pilot,the weather condition and the formation flying inherent rule with the indicative factors of the collision risk taken into full account.And,next,it is necessary to make a specific analysis of the indexes of middle layers,whereas the basis layers have to be illustrated specifically and established on the elements of the base layers,so as to make sure that all the elements involved are correlated with the middle layer.Furthermore,it is also of great need to establish the risk assessment model for the collision during the formation flight.Particularly speaking,it is necessary to build up,at first,the priority relation matrix and the significance order correlation between the index factors of each layer represented in the form of the matrix.And,afterwards,it is also necessary for the priority relation matrix to be transformed into a fuzzy consistent matrix,so as for the newly formed matrix to be able to be calculated for the risk degree of formation collision in accordance with the risk degree of each layer,with the collision risk of aircraft being evaluated for the flight.And,last of all,take a crew two-plane mixed formatior.flight for example.Suppose that it consists of model H and model G from a unit of the Air Force Aviation,the test result proves that the model we have proposed is reliable and easy to apply,as well as favorable for heightening the efficiency of formation flight training.Thus,as compared with the traditional methods of the similar nature,the method we have proposed is immune to the shortcomings,such as the insufficient study of factors other than the human factors,the excessive use of qualitative analyses and excessive assumptions and preconditions.All of the said advantages of the new model prove to be in a position to improve the safety and flexibility of the formation flight.