基于故障危害度的飞机电源系统可靠性评估  

Reliability assessment for power supply system of aircraft based on criticality method

作　　者：夏远飞[1] 

机构地区：[1]空军第一航空学院,河南信阳464000

出　　处：《中国测试》2011年第5期18-20,23,共4页China Measurement & Test

摘　　要：基于故障危害度对飞机电源系统进行可靠性评估,首先建立可靠性评估模型,该模型考虑各故障样本对飞机电源系统供电可靠性危害度影响,将出现的故障按照对电源系统安全、性能、任务及维修等指标的影响程度进行等级分类,从故障的失效机理出发建立相应的分布模型;然后采用分布计算和二次分布等算法进行系统整体可靠性指标评估。应用该模型对飞机电源系统进行了故障统计分析,计算了飞机电源系统的可靠性指标。The reliability assessment based on criticality method was proposed for power supply system of aircraft.Firstly,the assessment model was established under the consideration of various faults affecting the normal work of the power supply system of the aircraft.The entire appearance faults were classified by the targets of the system safety,performance,tasks and maintenance.A corresponding distribution statistical model was founded according to the failure mechanism of faults,the reliability targets were analyzed by using distribution method and quadratic distribution method,and various faults of the power supply system were analyzed by this model statistically.

关 键 词：故障 危害度 可靠性 分布模型 失效机理 

分 类 号：V242.2[航空宇航科学与技术—飞行器设计] TP202.1[自动化与计算机技术—检测技术与自动化装置]