Multistate Systems Reliability Theory with Applications (eBook)

Bent Natvig is Professor in Mathematics Statistics, University of Oslo. Member of Research Education Committee, Faculty of Mathematics and Natural Sciences, 2000-. Member of User Committee, G.H. Sverdrup's Building, 2000-. Guest/Invited speaker at numerous lectures around Europe and America for the past 30 years. Speaking on reliability theory and mathematics and statistics. Research interests include: Reliability theory and risk analysis, Bayesian statistics, Bayesian forecasting and dynamic models and queuing theory. Currently Associate Editor of Methodology and Computing in Applied Probability.

Preface.

Acknowledgements.

List of abbreviations.

1 Introduction.

1.1 Basic notation and two simple examples.

1.2 An offshore electrical power generation system.

1.3 Basic definitions from binary theory.

1.4 Early attempts to define multistate coherent systems.

1.5 Exercises.

2 Basics.

2.1 Multistate monotone and coherent systems.

2.2 Binary type multistate systems.

2.3 Multistate minimal path and cut vectors.

2.4 Stochastic performance of multistate monotone and coherent
systems.

2.5 Stochastic performance of binary type multistate strongly
coherent systems.

2.6 Exercises.

3 Bounds for system availabilities and
unavailabilities.

3.1 Performance processes of the components and the system.

3.2 Basic bounds in a time interval.

3.3 Improved bounds in a time interval using modular
decompositions.

3.4 Improved bounds at a fixed point of time using modular
decompositions.

3.5 Strict and exactly correct bounds.

3.6 Availabilities and unavailabilities of the components.

3.7 The simple network system revisited.

3.8 The offshore electrical power generation system
revisited.

4 An offshore gas pipeline network.

4.1 Description of the system.

4.2 Bounds for system availabilities and unavailabilities.

5 Bayesian assessment of system availabilities.

5.1 Basic ideas.

5.2 Moments for posterior component availabilities and
unavailabilities.

5.3 Bounds for moments for system availabilities and
unavailabilities.

5.4 A simulation approach and an application to the simple
network system.

6 Measures of importance of system components.

6.1 Introduction.

6.2 Measures of component importance in nonrepairable
systems.

6.3 The Birnbaum and Barlow-Proschan measures of component
importance in repairable systems and the latter's dual
extension.

6.4 The Natvig measure of component importance in repairable
systems and its dual extension.

6.5 Concluding remarks.

7 Measures of component importance - a numerical
study.

7.1 Introduction.

7.2 Component importance in two three-component systems.

7.3 Component importance in the bridge system.

7.4 Application to an offshore oil and gas production
system.

7.5 Concluding remarks.

8 Probabilistic modeling of monitoring and
maintenance.

8.1 Introduction and basic marked point process.

8.2 Partial monitoring of components and the corresponding
likelihood formula.

8.3 Incorporation of information from the observed system
history process.

8.4 Cause control and transition rate control.

8.5 Maintenance, repair and aggregation of operational
periods.

8.6 The offshore electrical power generation system.

8.7 The data augmentation approach.

Appendix A Remaining proofs of bounds given in Chapter
3.

A.1 Proof of the inequalities 14, 7 and 8 of Theorem 3.12.

A.2 Proof of inequality 14 of Theorem 3.13.

A.3 Proof of inequality 10 of Theorem 3.17.

Appendix B Remaining intensity matrices in Chapter 4.

References.

Index.

"This work is both text and research monograph, offering the
fundamentals as well as new research as he says, "on its way to
being published in international journals." (Booknews, 1 April
2011)