Modern Defense Technology ›› 2026, Vol. 54 ›› Issue (3): 208-212.DOI: 10.3969/j.issn.1009-086x.2026.03.019

• PAPERS • Previous Articles    

Method for Determining the Sample Size of Aircraft System Maintainability Evaluation

Yuwen GUO, Yong LIN   

  1. Civil Aircraft Flight Test Center of China,Xi’an 710024,China
  • Received:2025-04-03 Revised:2025-05-06 Online:2026-06-28 Published:2026-07-03
  • Contact: Yong LIN

飞机系统维修性评估样本量确定方法

郭毓文, 蔺勇   

  1. 航空工业民机试飞中心,陕西 西安 710024
  • 通讯作者: 蔺勇
  • 作者简介:郭毓文(1990-),男,河南洛阳人。高工,硕士,研究方向为军民用飞机飞行试验综合保障及通用质量特性评估技术。

Abstract:

It is required to evaluate the maintainability indicators during the identification phase of aircraft system flight test. Currently, the recommended solution in GJB2072-94 with a sample size of not less than 30 is relatively crude and has weak applicability in the case of small flight test samples. Considering the different situations of evaluation objects and indicators, a targeted sample size determination method is proposed to provide reference for guiding the maintenance quantitative evaluation of system identification flight test.

Key words: determination of sample size, aircraft system, maintenance, flight test, airborne equipment

摘要:

飞行试验过程中需对飞机各系统的维修性指标进行评估,目前GJB2072-94中样本量不小于30的推荐方案较为粗放,在飞行试验小样本情况下适用性不强。考虑评估对象及评估指标的不同情况,提出了有针对性的样本量确定方法,为指导飞行试验过程中系统维修性定量评估提供参考。

关键词: 样本量确定, 飞机系统, 维修性, 飞行试验, 机载设备

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