摘要
为实现面向飞机能量的多电飞机机电系统的稳健效能评估,从提高效能结果稳定性出发,确定了一套系统的效能评估方法体系。针对传统的效能评估活动,提出相应的改进措施来缩减每个评估节点存在的风险。其中,根据机电系统的功能结构以及飞行任务,提出了基于系统级、飞行任务级和保障级的具有三维立体多层次特征的效能评估指标体系构建模式,并依据模式快速拟定了效能评估指标体系;同时利用可信度模型和组合赋权模型对指标进行数据信度和权重分析;最后结合效能融合模型评估飞机机电系统的综合飞行效能。以某型3H架构机电系统效能评估过程为例,得出飞机起飞、爬升、巡航、下降、进近着陆5个阶段的效能分别为0.8794,0.9392,0.9355,0.9384,0.9331,最后通过验证证明了评估结果的准确性。该结果说明了本文评估方法体系的稳定性,较好地解决了目前大型复杂系统面临的效能评估难题。
In order to realize the robust effectiveness evaluation of the energy-oriented multi-electric aircraft electromechanical system,a systematic effectiveness evaluation method was established to improve the stability of the effectiveness results.Based on the traditional effectiveness evaluation activities,the corresponding improvement measures are put forward to reduce the risk of each evaluation node.Among them,according to the function structure of electromechanical system and the flight mission,a model of efficiency evaluation index system with three dimensions and multiple layers based on system level,flight mission level and support level was proposed,and then the efficiency evaluation index system was rapidly developed.And the reliability model and the combination weight model were used to analyze the data reliability and weight of the indicators.Finally,the efficiency fusion model was combined to evaluate the integrated flight efficiency of the system.Taking the efficiency evaluation process of a 3H structure electromechanical system as an example,it is concluded that the efficiency of the aircraft in five stages of takeoff,climbing,cruising,descending and approach landing is 0.8794,0.9392,0.9355,0.9384 and 0.9331 respectively.Finally,the accuracy of the evaluation results is proved through verification.The result shows the stability of the evaluation method system and solves the problem of efficiency evaluation of large complex system.
作者
段照斌
杜海龙
孟彦君
DUAN Zhao-bin;DU Hai-long;MENG Yan-jun(School of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China)
出处
《组合机床与自动化加工技术》
北大核心
2022年第2期146-150,共5页
Modular Machine Tool & Automatic Manufacturing Technique
关键词
飞机机电系统
效能评估
指标体系
数据融合
aircraft electromechanical system
efficiency evaluation
index system
data fusion
