2. Reliability and Maintainability
Chapter Twelve
Reliability and Maintainability

3. The Exponential Density and Distribution Functions
Fig. 12-1
The Exponential Density and Distribution Functions

4. Failure Rate Functions for the Weibull Lifetime Distribution
Fig. 12-2
Failure Rate Functions for the Weibull Lifetime Distribution

5. Weibull Densities for Various Values of ( = 0.5)
Fig. 12-3
Weibull Densities for Various Values of ( = 0.5)

6. “Bathtub” failure Rate Function
Fig. 12-4
“Bathtub” failure Rate Function

7. Realization of a Poisson Process
Fig. 12-5
Realization of a Poisson Process

8. Systems of Components in Both Series and Parallel
Fig. 12-6
Systems of Components in Both Series and Parallel

9. Reliability of 2 out of 4 and 3 out of 4 Systems
Fig. 12-7
Reliability of 2 out of 4 and 3 out of 4 Systems

10. System of Components (For Problem 19)
Fig. 12-8
System of Components (For Problem 19)

11. Realization of Failure and Repair Times
Fig. 12-9
Realization of Failure and Repair Times

12. Optimal Age Replacement Strategy
Fig
Optimal Age Replacement Strategy

13. Computation of the Optimal Replacement Age
Fig
Computation of the Optimal Replacement Age

14. Optimal Number of Years to Replace Auto (M = .4)
Fig
Optimal Number of Years to Replace Auto (M = .4)

15. Optimal Number of Years to Replace Auto (M = .2)
Fig
Optimal Number of Years to Replace Auto (M = .2)

16. Successive Cycles for Planned Replacement of a Single Item
Fig
Successive Cycles for Planned Replacement of a Single Item

17. The Function G(t)
Fig

18. Replacement Cycles for Free Replacement Warranty
Fig
Replacement Cycles for Free Replacement Warranty