Advanced Techniques for Maintenance Modeling and Reliability Analysis of Repairable Systems (eBook)

Garima Sharma, PhD, completed her doctorate at Subir Chowdhury School of Quality and Reliability, Indian Institute of Technology Kharagpur, West Bengal, India. Her research interests include aerospace reliability and maintenance engineering, reliability, and risk analysis of reentry space vehicles. She has authored 10+ journal publications (SCI and Scopus indexed) including three international conferences and two book chapters. Rajiv Nandan Rai, PhD, is an accomplished engineer with over 28 years of experience in the field of reliability, quality, and maintenance engineering with an industrial experience of 23 years in the Indian Air Force, in which he has worked at all levels of maintenance, repair, and overhaul of aircraft, aero engines, and their components. He is currently an assistant professor at Subir Chowdhury School of Quality and Reliability, Indian Institute of Technology Kharagpur. He has authored 30 publications (SCI and Scopus indexed) including one book and four book chapters. His research interests include reliability analysis of repairable systems, maintenance engineering, quality management and engineering, machine diagnostics, and prognostics.

List of Figures ix

List of Tables xiii

Preface xv

1 Maintenance, Repair, and Overhaul: A Preview 1

1.1 Introduction 1

1.2 Maintenance 3

1.3 Repair 23

1.4 Overhaul 29

1.5 Chapter Summary 34

References 34

2 Repairable Systems: An Overview 37

2.1 Introduction to Repairable Systems and Its Terminologies 38

2.2 Maintenance Actions on Repairable Systems 44

2.3 Classifications of Maintenance Categories 46

2.4 Concept of Censoring 56

2.5 Problems Faced by the Industries: Present Scenario 57

2.6 Chapter Summary 61

References 61

3 Imperfect Overhaul Virtual Age Model 65

3.1 Introduction 65

3.2 Need for an Imperfect Overhaul 66

3.3 Imperfect Overhaul Virtual Age Model (IOVAM) 68

3.4 Chapter Summary 78

References 80

4 Techniques for Modeling and Analysis of Censored Data Considering the FM Approach 81

4.1 Introduction 81

4.2 Problem Background 83

4.3 Basic Terminologies 84

4.4 Representation and Analysis of Cases 86

4.5 Models for FM-Wise Censored Data Analysis for Repairable Systems 90

4.6 An Industrial Perspective of Technique 98

4.7 Chapter Summary 106

References 108

5 Methodology for Identifying HFRCs Considering Risk-Based Threshold on Intensity Function 111

5.1 Introduction 111

5.2 Methodology for Risk-Based Threshold on Intensity Function for HFRC Designation 113

5.3 Chapter Summary 125

References 127

6 Progressive Maintenance Policy 129

6.1 Introduction 129

6.2 Progressive Maintenance Policy (PMP) 130

6.3 PMP Methodology 130

6.4 Chapter Summary 139

References 139

7 Age-Based Maintenance Policies for Repairable Systems 141

7.1 Introduction 141

7.2 Age-Based Policies for Repairable Systems 141

7.3 Chapter Summary 149

References 150

8 Study and Modeling of Factors Affecting the REI of Repairable Systems 151

8.1 Introduction 151

8.2 Limitations of the Quantitative Assessment of RE 152

8.3 Investigation of Factor/Subfactors Affecting RE 154

8.4 Tool Chosen for the Analysis 159

8.5 Chapter Summary 169

References 170

Appendix A 171

Appendix B 173

Appendix C 175

Appendix D 177

Appendix E 183

Index 193