基于联合k/n(G)模型的DIMA系统可靠性建模与分析  

Reliability modeling and analysis of DIMA system based on joint k/n(G) model

作　　者：阎芳 邢培培[2,3] 赵长啸 王鹏 YAN Fang;XlNG Peipei;ZHAO Changxiao;WANG Peng(Civil Aircraft Airworthiness and Repair Key Laboratory of Tianjin, Civil Aviation University of China, Tianjin 300300, China;Key Laboratory of Civil Aircraft Airworthiness Technology, Civil Aviation University of China, Tianjin 300300, China;School of Airworthiness, Civil Aviation University of China, Tianjin 300300, China)

机构地区：[1]中国民航大学天津市民用航空器适航与维修重点实验室,天津300300 [2]中国民航大学民航航空器适航审定技术重点实验室,天津300300 [3]中国民航大学适航学院,天津300300

出　　处：《航空学报》2018年第6期185-193,共9页Acta Aeronautica et Astronautica Sinica

基　　金：国家"973"计划(2014CB744902);国家自然科学基金-民航联合基金(U1533105)~~

摘　　要：针对分布式综合模块化航空电子(DIMA)系统的动态重构特性,分析了动态重构策略及重构过程,构建了面向DIMA系统的联合k/n(G)可靠性模型。以驻留于DIMA系统的综合显示功能为例进行了实验分析,讨论了系统重构过程可靠度与时间变化关系,给出了利用一般k/n(G)可靠性模型建模的可靠度变化曲线,通过对比分析验证了联合k/n(G)模型的适用性和合理性;通过参数敏感性分析,观察不同模块配置参数对系统可靠度的影响,得出相关结论,为提高DIMA系统动态重构过程的可靠性和优化资源配置提供指导。Considering the dynamic reconfiguration of the Distributed Integrated Modular Avionics（DIMA）system,the dynamic reconfiguration strategy and reconfiguration process are analyzed,and a joint k/n（G）reliability model for the DIMA system is constructed.An experimental analysis of the comprehensive display function residing in the DIMA system is carried out.The relationship between reliability and time of the system reconfiguration process is discussed,and the change of reliability curve is given using the general k/n（G）reliability model.Comparative analysis is conducted to show the applicability and rationality of the joint k/n（G）model.Through the parameter sensitivity analysis,the impact of different model configuration parameters on the system reliability is observed.The results can provide effective guidance for improving the reliability of the dynamic reconfiguration process of the DIMA system and optimizing resource allocation.

关 键 词：分布式综合模块化航空电子(DIMA) 动态重构 联合k/n(G)模型 可靠性 有效性 敏感性 

分 类 号：V243[航空宇航科学与技术—飞行器设计]