摘要
在保证航空器安全性和可靠性水平的条件下,优化航空器维修方案以降低维修成本。以IP44原理为基础,通过数据的收集和分析,使用Minitab软件工具,确定维修对象的失效分布模型,应用极大似然估计法对其形状参数和尺度参数进行计算,基于民航法规要求以最大有效度原则确定预防性维修的最佳维修间隔。以空客320空调系统的报废再循环系统的滤芯为例,通过模型得出最佳维修间隔,并结合维修大纲(MRBR)给出的维修间隔和中国民用航空局咨询通告(AC-121/135-53R1)的维修偏离要求给出建议的维修间隔,经验证方法可行。
Under the condition of ensuring the safety and reliability of the aircraft,the maintenance scheme of the aircraft is optimized to reduce the maintenance cost.Based on IP44 theory,through data collection and analysis,using Minitab software tools,determine the failure distribution model of maintenance object,calculate its parameters by maximum likelihood method,based on the requirements of civil aviation regulations,the optimal maintenance interval of preventive maintenance is determined by the principle of maximum effectiveness.Finally,taking the filter element of the end-of-life recycling system of Airbus 320 air conditioning system as an example,the optimal maintenance interval is obtained through the model,combined with the maintenance interval of MRBR and the maintenance deviation scope of the CAAC advisory circular AC-121/135-53R1,the proposed maintenance interval is given,which is proved to be effective.
作者
闫锋
张恒铭
YAN Feng;ZHANG Heng-ming(College of Aviation Engineering,Civil Aviation Flight University of China,Guanghan 618307,China)
出处
《航空计算技术》
2020年第3期6-10,共5页
Aeronautical Computing Technique
基金
工业与信息化部民机专项资助(MJ-2018-Y-56)
中国民航飞行学院科研基金面上项目资助(J2014-31和J2018-57)
中国民航飞行学院研究生课程建设项目资助(XKJ2019-2)。
关键词
IP44理论
维修方案
咨询通告
维修间隔
IP44 theory
maintenance scheme
advisory circular
maintenance interval
