摘要
1.引言 国军标《飞机维修品质规范》将“无维修待命时间(t_(al))”列入考核飞机维修品质的重要指标之一,在某些新研直升机的技术指标中已经提出了t_(al)的定量要求。由于该指标能直观地反映直升机的可靠性和维修性水平,所以具有重大的工程意义和实用价值。但是到目前为止理论上尚缺乏深入的研究,工程上也尚未开展该指标的设计和试验。为了给工程设计提供理论依据,本文在理论上对该指标进行了较为深入的研究,用“可靠寿命”的概念阐述了无维修待命时间。
An accurate definition of helicopter alert time without maintenance (tal) is given. Then, the tal is studied by using the concept of Q-percentile life. A general method is derived for calculating the tal under the presupposition that alert failure density functions of the relevant subsystems or components are known and two formulas are obtained. Finally, the basis to find out relevant subsystems or components and the way to realize tal are also presented.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1991年第10期B514-B517,共4页
Acta Aeronautica et Astronautica Sinica
关键词
直升机
可靠性
无维修待命时间
helicopter, reliability, alert time without maintenance
