航空学报 > 1991, Vol. 12 Issue (10): 514-517

直升机无维修待命时间的理论研究

彭海鑫, 周巨元   

  1. 中国直升机研究所
  • 收稿日期:1989-11-24 修回日期:1990-05-01 出版日期:1991-10-25 发布日期:1991-10-25

A THEORETICAL STUDY ON HELICOPTER ALERT TIME WITHOUT MAINTENANCE

Peng Haixin, Zhou Juyuan   

  1. Chinese Helicopter Research, Development Institute
  • Received:1989-11-24 Revised:1990-05-01 Online:1991-10-25 Published:1991-10-25

摘要: <正> 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。

关键词: 直升机, 可靠性, 无维修待命时间

Abstract: 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.

Key words: helicopter, reliability, alert time without maintenance