军用直升机航空电子产品系统可靠性提高方法及应用  

Reliability improvement method of military helicopter avionics system and its application

作　　者：彭鑫乾 王越 祝冠宇 PENG Xinqian;WANG Yue;ZHU Guanyu(National Engineering Research Center for Small and Special Precision Motors,Guizhou Aerospace Linquan Motor Co.,Ltd.,Guiyang 550081,China)

机构地区：[1]贵州航天林泉电机有限公司国家精密微特电机工程技术研究中心,贵州贵阳550081

出　　处：《现代电子技术》2023年第8期118-122,共5页Modern Electronics Technique

摘　　要：目前,直升机航空电子系统主要采用故障监控和事后维修的保障方式,在面对如深海飞行等严酷环境时,会存在备件不足而造成停机飞行;且由于机载的BIT虚警率过高,在造成误拆卸的同时也会带来较多的其他维护检查工作。为提高直升机航空电子系统的可靠性及战场适应性,除从维护和监测的方式进行改进外,从航空电子产品的研发上提高产品的系统可靠性也是一种从根源上解决问题的较好方式。文中使用可靠性模型,从理论上给出一种提高航空电子产品系统可靠性的方法。采用失效模式与影响分析(FMEA)、可靠性强化试验(RET)等方法,从设计研发角度对提高航空电子产品系统可靠性的方法进行阐述,并以某型直升机直流发电系统控制器电路试验为例说明该方法的实施应用。The guarantee modes of fault monitoring and post⁃maintenance are mainly adopted in the helicopter avionics system.In the face of harsh environment such as deep⁃sea flight,the flight will be stopped due to shortage of spare parts.The airborne BIT with high false alarm rate can cause more maintenance and inspection work while causing false disassembly.In order to improve the reliability and battlefield adaptability of the helicopter avionics system,it is also a good way to improve the system reliability of products in the research and development of avionics products,so as to solve the problem from the root,except for the improvement of the maintenance and monitoring modes.A method of improving the reliability of avionics system is given theoretically by means of the reliability model.The methods of improving the reliability of avionics system are described from the perspective of design and development by means of the failure mode and effect analysis(FMEA),reliability enhancement test(RET)and other methods,and the implementation and application of this method is illustrated by taking the circuit test of a helicopter DC power generation system controller as an example.

关 键 词：直升机 航空电子产品 可靠性模型 FMEA RET 可靠性试验 

分 类 号：TN98-34[电子电信—信息与通信工程] V216[航空宇航科学与技术—航空宇航推进理论与工程]