摘要
飞机液压系统准确效能评估,是分析实际作业中飞机液压系统运行情况及其结构功能优化设计的基础。针对传统效能评估方法普遍依赖专家决策的问题,以贝叶斯理论为基础,提出了一种考虑评估指标数据可信度的扩展贝叶斯效能评估模型。模型利用提出的改进灰色关联分析法获得评估指标数据的可信度量化值,将其与指标数据作为评估指标的二维数组表达,并通过扩展贝叶斯理论进行专家数据和仿真数据等异构数据的分析融合。以某型飞机液压系统为例,验证了上述方法在飞机液压系统效能评估中的有效性,并可用于多源数据的系统效能评估中。
The accurate effectiveness evaluation of the aircraft hydraulic system is the basis for analyzing the operation of the aircraft hydraulic system in actual operations and the optimization design of its structure and function. Aiming at the problem that traditional effectiveness evaluation methods generally rely on expert decision-making, based on Bayesian theory, an extended Bayesian effectiveness evaluation model considering the credibility of evaluation index data is proposed. The model uses the improved grey relational analysis method to obtain the quantified value of the reliability of the evaluation index data, which is expressed with the index data as a two-dimensional array of the evaluation index. And heterogeneous data such as expert data and simulation data are analyzed and fused by extensible Bayesian theory. Taking the hydraulic system of a certain aircraft as an example, the effectiveness of this method in the efficiency evaluation of the aircraft hydraulic system is verified. And the method can be used in the efficiency evaluation of the multi-source data system.
作者
樊智勇
孟彦君
刘涛
FAN Zhi-yong;MENG Yan-jun;LIU Tao(College of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China)
出处
《计算机仿真》
北大核心
2022年第9期15-20,90,共7页
Computer Simulation
基金
国家自然科学基金委员会-中国民航局民航联合研究基金(U1533201)
天津市自然科学基金(18JCQNJC05000)。
关键词
飞机液压系统
效能评估
扩展贝叶斯理论
可信度
指标体系
Aircraft hydraulic system
Efficiency evaluation
Extensible bayesian theory
Reliability
Index system
