共模分析方法在机载电子设备中的应用研究  

Research on Common Mode Analysis in Airborne Electronic Equipment

作　　者：杨德英 张文勇 YANG Deying;ZHANG Wenyong(AVIC Chengdu Caic Electronics Co.,Ltd.,Chengdu 610091,China;91211 Troops of the PLA,Sansha 573299,China)

机构地区：[1]成都凯天电子股份有限公司,四川成都610091 [2]中国人民解放军91211部队,海南三沙573299

出　　处：《电子质量》2025年第2期91-96,共6页Electronics Quality

摘　　要：随着机载装备设计复杂度的提升,常采用冗余设计来提高装备的可靠性安全性水平。共模分析属于安全性评估范畴,其能够发现研制周期中潜在的共模故障,并借助相应设计措施确保冗余设计真正独立,同时,能够弥补当前可靠性安全性设计分析方法的不足。通过共模分析技术对机载舱门位置检测设计实例进行安全性评估,分析设备各组部件之间的独立性,为其他设备共模分析提供了思路。With the increasing complexity of airborne equipment design,redundant design is often used to improve the reliability and safety level of the equipment.Common mode analysis belongs to the category of safety assessment,which can discover potential common mode faults during the development cycle and ensure the true independence of redundant design with corresponding design measures,and it can make up for the shortcomings of current reliability and safety design analysis methods.The common mode analysis technology is used to evaluate the safety of the design example of the cabin door position detection equipment,and analyze the independence of the components of the equipment,which provides ideas for the common mode analysis of other equipment.

关 键 词：共模分析 机载电子设备 安全性评估 独立性 

分 类 号：V267[航空宇航科学与技术—航空宇航制造工程]