AFDX网络连通可靠性仿真算法研究与实现

摘要

航空电子全双工交换式以太网(AFDX)已成为现代先进民用飞机通信网络的主干网络,AFDX网络的可靠性对于航电系统至关重要,研究其可靠性评价方法有着重要的意义.阐述了AFDX网络连通可靠性的评价度量参数与模型,研究了蒙特卡洛仿真模型、参数和算法.最后给出双余度级联AFDX网络连通可靠性的仿真计算结果.%The avionics full duplex switched Ethernet (AFDX) has been selected as backbone communication network in advance civil aircraft.And, its reliability is crucial to avionics system.So, it is significant to study its reliability estimation.This paper expounds the measurement parameter of reliability estimation of AFDX network connectivity and network model.Then, we studied the model, parameters and algorithm of Monte Carlo simulation.Last,this paper gives the calculation results of reliability of double redundant cascade AFDX network connectivity.