CC7004 RELIABILITY IN ENGINEERING SYSTEMS

CC7004 RELIABILITY IN ENGINEERING SYSTEMS 

UNIT I RELIABILITY CONCEPT

Reliability definition – Quality and Reliability– Reliability mathematics – Reliability functions – Hazard rate – Measures of Reliability – Design life –A priori and posteriori probabilities – Mortality of a component –Bath tub curve – Useful life. UNIT II FAILURE DATA ANALYSIS 11 Data collection –Empirical methods: Ungrouped/Grouped, Complete/Censored data – Time to failure distributions: Exponential, Weibull – Hazard plotting – Goodness of fit tests.

UNIT III RELIABILITY ASSESSMENT

 Different configurations – Redundancy – m/n system – Complex systems: RBD – Baye’s method – Cut and tie sets – Fault Tree Analysis – Standby system. 

UNIT IV RELIABILITY MONITORING

Life testing methods: Failure terminated – Time terminated – Sequential Testing –Reliability growth monitoring – Reliability allocation – Software reliability. 

UNIT V RELIABILITY IMPROVEMENT

Analysis of downtime – Repair time distribution – System MTTR – Maintainability prediction – Measures of maintainability – System Availability – Replacement theory. TOTAL: 45 PERIODS 

REFERENCES

1. Charles E. Ebeling, “An introduction to Reliability and Maintainability engineering”, TMH, 2000.

2. Roy Billington and Ronald N. Allan, “Reliability Evaluation of Engineering Systems”, Springer, 2007.