期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2013
卷号：2
期号：10
页码：01-13
出版社：IJECS
摘要：Reliability for functioning units is essential, be it on the parts of memory chips of computers, software or hardware orit can be on the part of heavy machinery in any industrial system. Reliability analysis can give excellent results toimprove the maintainability and portability of management design for existing and future product. Extensive reviewsof two-component repairable system models have been presented by Lie et al(1977) and Yearout et al. (1986). In allthese models, it is assumed that failure times and repair times of the components are independent. In this paper,Reliability analysis of a system having one main unit and two supporting units is proposed, assuming that the systemfails whenever the main unit fails and system shuts down whenever either both the supporting units fail or main unitand one of the supporting units fail. To improve the reliability of the system, concept of preventive maintenance isalso added. Using regenerative point technique various system parameters such as Transition Probabilities, Meansojourn times, Mean time to system failure, Availability, Busy period of repairman in repairing the failed units etc. arecalculated. At last profit analysis is also done. In this paper, failure time distributions are taken to be negativeexponential whereas the repair time distributions are arbitrary
关键词：mean sojourn times; mtsf; availability; busy period
