基于Extend的多态PMS仿真模型

Multi-mode PMS Simulation Model Based on Extend

针对现有解决多态多阶段任务系统(PMS)的方法存在过程复杂、缺乏统一排序的问题,以最小割集为基础,提出基于Extend的多态PMS仿真模型。通过结构函数表达各阶段的逻辑关系,在已知基本设备失效分布函数的情况下,利用抽样统计思想处理多态PMS中的阶段依赖和模式依赖关系。相比DEP-BDD解析算法,应用该模型求解PMS能在保证可靠度误差较小、稳定性较好的基础上,使建模分析过程更简单。

Aiming at the problems of complex process,lacking unified sort in existing multi-mode Phased Mission System（PMS）,based on minimal cut set,this paper presents a multi-mode PMS simulation model based on Extend.Under the condition knowing basic equipment failure distribution function,it expresses logical relation of various phases through structure function,and deals with the relation of phases dependency and modes dependency relation by utilizing the idea of statistical sampling.It can make modeling analytical process more simple based on ensuring small and stable of reliability by using this model to solve PMS than DEP-BDD parse algorithm.