考虑运行时间的传动系统翻修间隔期计算方法

通过建立直升机传动系统运行时间与飞行时间、发动机工作时间的数学模型,推导出运行时间与飞行时间比例关系,即折算系数。利用Minitab软件完成数据计算,将传动系统的运行时间折算成对应的飞行时间,相比于仅考虑空中的飞行时间的传统方式,该方法可得到更真实、准确的翻修间隔期,提高其可靠性,同时保证了传动系统的维护时间尺度与直升机其他部件的一致性。该方法已在某型直升机成功应用,可为同类航空产品的维护提供参考与借鉴。

Calculation Method of Transmission System Time Between Overhaul with Considering Running Time

By establishing the mathematical model of helicopter transmission system running time and flight time,engine working time,the time ratio relation between running time and flight time is deduced,that is,conversion coefficient.Using Minitab software to complete the data calculation,the running time of the transmis sion system is converted into the corresponding flight time.Compared with the traditional way which only consid ers the flight time in the air,the real and accurate time between overhaul can be obtained and the reliability can be improved.At the same time,the maintenance time scale of the transmission system and other parts of the heli copter can be ensured.This method is successfully applied to a certain type of helicopter,and some reference for the maintenance of similar aviation products can be provided.