A Study on Optimal Inspection Strategies of Reliability Systems withParallel-Chain Precedence Constraints under Failure States
Testability is a new and important technology as reliability and maintainability.A lot ofliterature has discussed the optimal problems of testability in recent years.In Chius paper,a newkind of precedence constraints,parallel-chain precedence constraints,was presented,which is acommon constraint in many products and systems.He discussed the optimal inspection strategies todetermine the states (good/failed) of some typical reliability systems with parallel-chain precedenceconstraints.But in reality we encounter more problems with fault-testing models,and how to locateall the failed components with minimal cost is our interest.Suppose that a coherent system has nindependent components,each of which has a known prior probability of fault.The true state of eachcomponent can be obtained by inspecting it with some cost.This paper discusses the optimalinspection strategies of the coherent system with parallel-chain precedence constraints when thesystem fails,which can minimize the total expected inspection cost.If the system is known to havefailed,there are two situations: one is that the number of the failed components in the system isunknown,which is a common phenomenon; another is that the number of the failed components isknown.In addition,the coherent systems concerned in this paper are all typical reliability systems,such as series,parallel,parallel-series,series-parallel and k -out-of-n systems,and all of them aresubject to parallel-chain precedence constraints.
Testability Optimal Testing Inspection Sequence Failure States
Z.W.Bao H.Y.Li L.R.Cui
School of Management & Economics,Beijing Institute of Technology,Beijing,China College of Economic Management,Hebei University of Science and Technology,Shijiazhuang,China
国际会议
成都
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）