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Reliability Based Aircraft Maintenance Optimization and Applications

Book Description

Reliability Based Aircraft Maintenance Optimization and Applications presents flexible and cost-effective maintenance schedules for aircraft structures, particular in composite airframes. By applying an intelligent rating system, and the back-propagation network (BPN) method and FTA technique, a new approach was created to assist users in determining inspection intervals for new aircraft structures, especially in composite structures.

This book also discusses the influence of Structure Health Monitoring (SHM) on scheduled maintenance. An integrated logic diagram establishes how to incorporate SHM into the current MSG-3 structural analysis that is based on four maintenance scenarios with gradual increasing maturity levels of SHM. The inspection intervals and the repair thresholds are adjusted according to different combinations of SHM tasks and scheduled maintenance.

This book provides a practical means for aircraft manufacturers and operators to consider the feasibility of SHM by examining labor work reduction, structural reliability variation, and maintenance cost savings.

  • Presents the first resource available on airframe maintenance optimization
  • Includes the most advanced methods and technologies of maintenance engineering analysis, including first application of composite structure maintenance engineering analysis integrated with SHM
  • Provides the latest research results of composite structure maintenance and health monitoring systems

Table of Contents

  1. Cover
  2. Title page
  3. Table of Contents
  4. Copyright
  5. About the Authors
  6. Preface
  7. Abbreviations
  8. Abstract
  9. Chapter 1: Introduction
    1. Abstract
    2. 1.1. Challenges of modern developing commercial aircraft
    3. 1.2. Evolution of aircraft maintenance process
    4. 1.3. Aircraft composite structures
    5. 1.4. Reliability-centered maintenance
    6. 1.5. MSG-3 structural analysis
    7. 1.6. A380 maintenance programs
    8. 1.7. Summary
  10. Chapter 2: Basic Concepts
    1. Abstract
    2. 2.1. Accident
    3. 2.2. Near misses
    4. 2.3. Risk
    5. 2.4. Safety
    6. 2.5. Reliability
    7. 2.6. Risk management
    8. 2.7. Incident
    9. 2.8. Airworthiness
    10. 2.9. Quality
    11. 2.10. Airworthiness
    12. 2.11. Availability
    13. 2.12. Aircraft maintenance
    14. 2.13. Sources and types of failure in aircraft
    15. 2.14. Maintenance system and tasks
    16. 2.15. Component servicing
    17. 2.16. Overhaul
    18. 2.17. Bay servicing
    19. 2.18. Replacement/throwaway
    20. 2.19. Functional testing
    21. 2.20. Calibration
    22. 2.21. Nondestructive evaluation
    23. 2.22. Avionics maintenance
    24. 2.23. Software maintenance
    25. 2.24. Interdependence of operations and maintenance
  11. Chapter 3: Aircraft Reliability and Maintainability Analysis and Design
    1. Abstract
    2. 3.1. Reliability fundamental mathematics
    3. 3.2. Some common failure distributions
    4. 3.3. Binary system reliability models
    5. 3.4. Mechanical reliability—stress–strength interference model
    6. 3.5. Fuzzy reliability theory
    7. 3.6. Hardware reliability
    8. 3.7. Maintainability analysis and design
    9. 3.8. Specification of maintainability [29]
    10. 3.9. Assessment and prediction of maintainability
    11. 3.10. Maintainability design: The affected factors
    12. 3.11. Maintainability design: Criteria
    13. 3.12. Maintainability design: Allocation
    14. 3.13. Maintainability design—limiting clearance [31]
    15. 3.14. Maintainability design—accessibility
    16. 3.15. Maintainability design—packaging
    17. 3.16. Maintainability design—standardization and interchange ability
    18. 3.17. Maintainability design—installation-components arrangement
    19. 3.18. Maintainability design—general criteria
    20. 3.19. Maintainability demonstration and testing [32]
    21. 3.20. Maintainability and reliability program activities during the phases of a project [33]
    22. 3.21. Maintainability management
  12. Chapter 4: RCM and Integrated Logistic Support
    1. Abstract
    2. 4.1. Introduction
    3. 4.2. Maintenance analysis procedures
    4. 4.3. Statistical reliability assessment
    5. 4.4. Logistic support analysis
    6. 4.5. Fault tree analysis
    7. 4.6. Level of repair analysis
    8. 4.7. Logistic support analysis record
    9. 4.8. LSA models
    10. 4.9. Elements of ILS
    11. 4.10. Support equipment
    12. 4.11. Facilities
    13. 4.12. Data
  13. Chapter 5: Intelligent Structural Rating System Based on Back-Propagation Network
    1. Abstract
    2. 5.1. Introduction
    3. 5.2. Artificial neural network
    4. 5.3. Design BPN for AD
    5. 5.4. Discussion
    6. 5.5. Conclusions
  14. Chapter 6: Fault Tree Analysis for Composite Structural Damage
    1. Abstract
    2. 6.1. Introduction
    3. 6.2. Basic principles of fault tree analysis
    4. 6.3. FTA for composite damage
    5. 6.4. Qualitative analysis
    6. 6.5. Quantitative analysis
    7. 6.6. Discussion
    8. 6.7. Potential solutions
    9. 6.8. Conclusions
  15. Chapter 7: Inspection Interval Optimization for Aircraft Composite Structures Considering Dent Damage
    1. Abstract
    2. 7.1. Introduction
    3. 7.2. Damage tolerance philosophy of composite structures
    4. 7.3. Damage characterization
    5. 7.4. Probabilistic method
    6. 7.5. Case study
    7. 7.6. Simulation results and discussion
    8. 7.7. Conclusions
  16. Chapter 8: Repair Tolerance for Composite Structures Using Probabilistic Methodologies
    1. Abstract
    2. 8.1. Introduction
    3. 8.2. Repair tolerance
    4. 8.3. Probabilistic method
    5. 8.4. Case study
    6. 8.5. Results and discussion
    7. 8.6. Conclusions
  17. Chapter 9: Structural Health Monitoring and Influence on Current Maintenance
    1. Abstract
    2. 9.1. Structural health monitoring technology
    3. 9.2. SHM applications in aircraft
    4. 9.3. Influence of SHM on current maintenance
    5. 9.4. Integration of SHM with MSG-3 analysis
    6. 9.5. Conclusions
  18. Chapter 10: Maintenance Control and Management Optimization
    1. Abstract
    2. 10.1. Introduction
    3. 10.2. Qualifications of aircraft maintenance personnel
    4. 10.3. Specific aircraft type training
    5. 10.4. Occupational health and safety
    6. 10.5. Organization for maintenance control
    7. 10.6. System of control
    8. 10.7. Aircraft tail number maintenance planning
    9. 10.8. Certification of work done
    10. 10.9. Maintenance forms
    11. 10.10. Services
    12. 10.11. Maintenance schedules
    13. 10.12. Maintenance planning
    14. 10.13. Reference data definitions
    15. 10.14. Example of airline maintenance system development
  19. Chapter 11: The Methodologies of Reliability and Maintainability in the A380 Program
    1. Abstract
    2. 11.1. Introduction
    3. 11.2. Reliability modeling approach
    4. 11.3. Reliability enhancement process
    5. 11.4. Validation and verification process
    6. 11.5. Advanced maintainability optimization
    7. 11.6. Conclusions
  20. References
  21. Index