首页|基于故障数据和假设检验的失效率评估方法

基于故障数据和假设检验的失效率评估方法

Failure rate evaluation method based on fault data and hypothesis testing

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民用飞机的特性(可靠性、安全性、维修性、测试性等)指标直接决定着飞机的安全性、可靠性、经济性水平,也直接影响着飞机的市场竞争力.基于故障数据的特性指标评估结论,可以有效评估供应商提供的零部件是否满足设计阶段提出的要求.研究了假设检验方法在民用飞机特性指标评估工作的应用,以主制造商和航空公司最为关注的可靠性指标失效率为例,提出了基于故障数据和假设检验失效率的评估方法,并结合某型飞机运营中设备的故障数据,利用提出的假设检验方法进行了样例分析.
Characteristic(reliability,safety,maintainability,testability,etc.)indicators of civil aircraft directly determine the level of safety,reliability and economy of the aircraft,and also directly affect the competitiveness of the aircraft in the market.The conclusion of the evaluation of characteristic indexes based on fault data can effec-tively assess whether the parts provided by suppliers meet the requirements put forward at the design stage.The ap-plication of the hypothesis testing method in the evaluation of civil aircraft characteristic indexes is investigated.Taking the failure rate of the reliability index,which is of most concern to the main manufacturers and airlines,as an example,an assessment method of the failure rate based on fault data and hypothesis testing is proposed,and a sample analysis is carried out using the proposed hypothesis testing method in combination with the fault data of the equipment in the operation of a certain type of aircraft.

civil aircraftfault datafailure ratehypothesis testingindex evaluation

郑勇乐

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上海飞机设计研究院,上海 201210

民用飞机 故障数据 失效率 假设检验 指标评估

2024

民用飞机设计与研究
中国商用飞机有限责任公司 上海飞机设计研究院

民用飞机设计与研究

影响因子:0.271
ISSN:1674-9804
年,卷(期):2024.(4)