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Chapter 13 Reliability
Reliability ,[object Object],[object Object]
Maintainability ,[object Object]
Types of Failures ,[object Object],[object Object]
Types of Reliability ,[object Object],[object Object]
Reliability Measurement  ,[object Object],[object Object],[object Object],[object Object]
Cumulative Failure Rate Curve
Failure Rate Curve “ Infant mortality period”
Average Failure Rate
Reliability Function ,[object Object],[object Object],[object Object],[object Object],[object Object]
Series Systems R S   = R 1  R 2  ... R n   1 2 n
Parallel Systems R S   = 1 - (1 - R 1 ) (1 - R 2 )... (1 - R n ) 1 2 n
Series-Parallel Systems ,[object Object],A B C C D R A R B R C R D R C A B C’ D R A R B R D R C’  = 1 – (1-R C )(1-R C )
Reliability Engineering ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
 
Reliability Management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Configuration Management ,[object Object],[object Object],[object Object]
Maintainability ,[object Object],[object Object],[object Object]
Design Issues ,[object Object],[object Object],[object Object]
Availability ,[object Object],[object Object],MTBM = mean time between maintenance MTD = mean down time MTBF = mean time between failures MTTR = mean time to repair

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