基于GSPN的飞机测试性指标确定方法研究  

Research on Determination Method for Testability Index of Aircraft Based on GSPN

作　　者：王小强[1] 韩斌[1] 

机构地区：[1]中航工业第一飞机设计研究院,西安710089

出　　处：《计算机测量与控制》2016年第4期13-15,18,共4页Computer Measurement &Control

基　　金：航空科学基金2013年度资助项目(2013ZD03016)

摘　　要：针对目前飞机测试性指标论证时缺乏有效方法支撑问题,提出了一种基于广义随机Petri网(Generalized Stochastic Petri Nets,GSPN)的测试性指标确定方法;通过分析飞机航线级的维修过程,构建过程的GSPN模型,并对模型进行求解和分析,得到测试性指标与使用可用度和平均修复时间之间的关系,以这两个指标共同作为约束目标,通过权衡分析确定飞机合理的测试性指标,并以某飞机测试性指标论证为例,演示验证了方法的可行性。Aiming at the problem of lacking of effective method in the determination of aircraft testability index, a new method is proposed based on Generalized Stochastic Petri Nets. Through analyzing the maintenance process of the aircraft line level, the GSPN model of the process is constructed. Then the model is solved and analyzed. Meantime the relationship between testability index and operational availa- bility and mean time to repair is also obtained. Using the two indexes as a constraint, rational testability index is determined by trade--off analysis. Finally, taking the determination of one aircraft testability index as an example, the feasibility of the method is demonstrated.

关 键 词：测试性指标 广义随机PETRI网 使用可用度 平均修复时间 

分 类 号：TP306[自动化与计算机技术—计算机系统结构] V267[自动化与计算机技术—计算机科学与技术]