首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Random number of units for K-out-of-n systems
Institution:1. Institute of Consumer Sciences and Human Life, Kinjo Gakuin University, Nagoya 463-8521, Japan;2. Department of Mechanical and Industrial Engineering, Qatar University, Doha 2713, Qatar;3. Department of Business Administration, Aichi Institute of Technology, Toyota 470-0392, Japan
Abstract:This paper takes up the reliability and preventive replacement problems for a K-out-of-n system, where K is a stochastic parameter provided. Firstly, we consider the case when K is predefined as constant numbers as is done with the traditional method, and obtain the system reliability R(t), mean time to failure (MTTF), and replacement policies, in which the number n of units for replacement and replacement time T of operation are, respectively, optimized. Secondly, we focus on the above discussions again when K cannot be predefined constantly, but it is a random variable with an estimated probability function. Furthermore, we give approximate computations in an easier way for MTTF, optimal number n* and replacement time T*, respectively.
Keywords:
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号