南京工业大学学报（社会科学版）Issue(3)：118-122,128,6.
随机工作时长下并联系统替换策略∗
Replacement First and Last for a Parallel System within a Random Working Cycle
摘要
Abstract
This paper observes optimal replacement times for a parallel system with n units when it is operating for successive jobs with a random working cycle. The classical ″whichever occurs first″and the newly proposed ″whichever occurs last″ are respectively employed for replacements scheduled at time T and working cycle -, whose policies are called F¯replacement and L¯replacement. F¯ replacement is the first replacement time that the long task completion of the random work and the point of time T. L¯ replacement is the last replacement time that the long task completion of the random work and the point of time L. We obtain their expected replacement cost rates and the optimal fixed length T∗ for the expected cost rate to the lowest minimum. Further, comparison of F¯replacement and L¯replacement are described:L¯replacement can save more replacement cost.关键词
系统可靠性/并联系统/F-替换/L-替换/随机工作时长Key words
reliability/parallel system/F¯replacement/L¯replacement/random working cycle分类
管理科学引用本文复制引用
钱存华,彭凯,赵旭峰..随机工作时长下并联系统替换策略∗[J].南京工业大学学报（社会科学版）,2015,(3):118-122,128,6.基金项目
国家自然科学基金项目(71371097) （71371097）
