民用飞机铰链运动机构维修间隔制定研究

Research on Maintenance Interval Development of Hinge Mechanism of Civil Aircraft

铰链机构是民用飞机中一种被广泛采用的运动机构,其维修间隔的合理制定对于保障飞机安全、经济运营起到重要作用。通过对MSG-3、适航条款和国家军用标准中相关内容以及维修间隔的影响因素进行详细分析,提出民用飞机铰链机构维修间隔的制定流程,并以某型飞机襟翼铰链机构维修间隔制定为例进行验证。结果表明:本文提出的制定流程可行,为飞机铰链机构的维修间隔和维修大纲的合理制定提供了依据;该铰链机构的偶然损伤和环境损伤的检查门槛值、重复检查间隔均为5个日历年,疲劳损伤的检查门槛值为24000 fh,重复检查间隔为14400 fh。

Hinge mechanism as a widely used motion mechanism in civil aircraft,the reasonable formulation of its maintenance interval plays an important role in ensuring the safe and economic operation of aircraft.By analyzing the MSG-3,China Civil Aviation Administration and Military Standard of China,and the influencing factors of maintenance interval,the formulation process of the maintenance interval of the hinge mechanism of civil aircraft is proposed.The maintenance interval formulation of flap hinge mechanism of an aircraft is taken as an example to verify the process.The results show that the proposed process in this paper is feasible,which can provide the basis for the reasonable formulation of maintenance interval and maintenance program of aircraft hinge mechanism.The inspection threshold and repeated inspection interval of accidental damage and environmental damage of the hinge mechanism are 5 calendar years,the inspection threshold of fatigue damage is 24000 fh and the repeated inspection interval is 14400 fh.