航空计算机电源模块间歇故障机理分析  

Analysis of Intermittent Faults Mechanism of Aviation Computer Power Module

作　　者：申凯 吕克洪[1,2] 巩仁峰 邱静[1,2] 刘冠军[1,2] SHEN Kai;LYU Kehong;GONG Renfeng;QIU Jing;LIU Guanjun(Laboratory of Science and Technology on Integrated Logistics Support,National University of Defense Technology,Changsha 410073,China;School of Intelligence Science,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学装备综合保障技术重点实验室,湖南长沙410073 [2]国防科技大学智能科学学院,湖南长沙410073

出　　处：《测控技术》2024年第10期58-65,共8页Measurement & Control Technology

基　　金：装备预先研究项目(20902060403)。

摘　　要：随着各国在航空航天领域的探索不断深入,各类设备向智能化、自动化方向发展,装备结构日益复杂,工作环境更加多样化,间歇故障逐渐成为电子设备平稳使用与维修保障的关键。其中,航空计算机电源转换电路模块的间歇故障近年来屡次出现,影响了航空计算机的稳定性和装备的正常运行。面对工程实际需求,以DC-DC电源转换电路为研究对象,依据已有间歇故障理论,通过原理推导、仿真分析和实验验证,深入剖析电路中可能发生的间歇故障机理并对其进行复现,总结得出间歇故障发生的原因,为以后航空计算机实际工况下的间歇故障诊断提供了理论参考。With the continuous and deep exploration of various countries in the aerospace field,various types of equipment are developing to wards intelligence and automation,the equipment structures are becoming more and more complex,and the working environments are becoming more diversified,intermittent faults gradually become a prominent problem in the smooth use and maintenance of electronic equipment.Among them,the intermittent faults of the power conversion circuit module of the aviation computer occur repeatedly in recent years,which affect the stability of the aviation computers and the normal operation of the equipment.Facing the actual needs of engineering,the DC-DC power conversion circuit is taken as the research object.According to the existing theory of intermittent faults,through principle derivation,simulation analysis and experimental verification,the intermittent faults mechanism that may occur in the circuit are deeply analyzed and recurrenced.The causes of intermittent faults are summarized,which provide the theoretical reference for intermittent faults diagnosis under the actual working conditions of aviation computers in the future.

关 键 词：间歇故障 电源转换电路 机理分析 故障复现 

分 类 号：V267[航空宇航科学与技术—航空宇航制造工程]