ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
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 Chiu’s 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
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.44-46.787.pdf
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