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This book has been written with the intention to fill two big gaps in the reliability and risk literature: the risk-based reliability analysis as a powerful alternative to the tr… Read more
LIMITED OFFER
Immediately download your ebook while waiting for your print delivery. No promo code needed.
This book has been written with the intention to fill two big gaps in the reliability and risk literature: the risk-based reliability analysis as a powerful alternative to the traditional reliability analysis and the generic principles for reducing technical risk.
An important theme in the book is the generic principles and techniques for reducing technical risk. These have been classified into three major categories: preventive (reducing the likelihood of failure), protective (reducing the consequences from failure) and dual (reducing both, the likelihood and the consequences from failure). Many of these principles (for example: avoiding clustering of events, deliberately introducing weak links, reducing sensitivity, introducing changes with opposite sign, etc.) are discussed in the reliability literature for the first time.
Significant space has been allocated to component reliability. In the last chapter of the book, several applications are discussed of a powerful equation which constitutes the core of a new theory of locally initiated component failure by flaws whose number is a random variable.
Dedication
PREFACE
Chapter 1: RISK-BASED RELIABILITY ANALYSIS: A POWERFUL ALTERNATIVE TO THE TRADITIONAL RELIABILITY ANALYSIS
Chapter 2: BASIC RELIABILITY CONCEPTS AND CONVENTIONS USED FOR DETERMINING THE LOSSES FROM FAILURES
2.1 RELIABILITY AND FAILURE
2.2 HAZARD RATE AND TIME TO FAILURE DISTRIBUTION
2.3 HOMOGENEOUS POISSON PROCESS AND ITS LINK WITH THE NEGATIVE EXPONENTIAL DISTRIBUTION
2.4 WEIBULL MODEL FOR THE DISTRIBUTION OF THE TIME TO FAILURE
2.5 RELIABILITY BATHTUB CURVE FOR NON-REPAIRABLE COMPONENTS/SYSTEMS
2.6 PRODUCTION AVAILABILITY
2.7 TIME TO FAILURE DISTRIBUTION OF A SERIES ARRANGEMENT, COMPOSED OF COMPONENTS WITH CONSTANT HAZARD RATES
2.8 REDUNDANCY
2.9 BUILDING RELIABILITY NETWORKS
2.10 TYPE OF COMPONENTS IN A RELIABILITY NETWORK
2.11 PSEUDO-CODE CONVENTIONS USED IN THE ALGORITHMS FOR RISK-BASED RELIABILITY ANALYSIS
APPENDIX 2.1
Chapter 3: METHODS FOR ANALYSIS OF COMPLEX RELIABILITY NETWORKS
3.1 NETWORK REDUCTION METHOD FOR RELIABILITY ANALYSIS OF COMPLEX SYSTEMS AND ITS LIMITATIONS
3.2 DECOMPOSITION METHOD FOR RELIABILITY ANALYSIS OF SYSTEMS WITH COMPLEX TOPOLOGY AND ITS LIMITATIONS
3.3 METHODS FOR SYSTEM RELIABILITY ANALYSIS BASED ON MINIMUM PATH SETS AND CUT SETS AND THEIR LIMITATIONS
3.4 MONTE CARLO SIMULATION ALGORITHMS FOR SYSTEM RELIABILITY ANALYSIS BASED ON TESTING MINIMAL PATHS OR MINIMAL CUT SETS
Algorithm 3.2
3.5 DRAWBACKS OF THE METHODS FOR SYSTEM RELIABILITY ANALYSIS BASED ON MINIMUM PATH SETS AND MINIMUM CUT SETS
3.6 SYSTEM RELIABILITY ANALYSIS BASED ON FINDING PATHS THROUGH WORKING COMPONENTS IN RELIABILITY NETWORKS
3.7 PRESENTING THE TOPOLOGY OF A RELIABILITY NETWORK BY ADJACENCY ARRAYS
3.8 UPDATING THE ADJACENCY MATRIX AND THE ADJACENCY ARRAYS AFTER A COMPONENT FAILURE
3.9 AN ALGORITHM FOR DETERMINING THE EXISTENCE OF A PATH THROUGH WORKING COMPONENTS IN COMPLEX RELIABILITY NETWORKS
3.10 AN EFFICIENT ALGORITHM FOR DETERMINING THE EXISTENCE OF A PATH IN A COMPLEX RELIABILITY NETWORK REPRESENTED BY ADJACENCY ARRAYS
3.11 AN EFFICIENT ALGORITHM FOR DETERMINING THE EXISTENCE OF k OUT OF n PATHS IN COMPLEX RELIABILITY NETWORKS CONTAINING MULTIPLE END NODES
3.12 AN ALGORITHM FOR DETERMINING THE RELIABILITY OF A COMPLEX RELIABILITY NETWORK
3.13 APPLICATIONS: RELIABILITY ANALYSIS OF COMPLEX RELIABILITY NETWORKS INCLUDING A LARGE NUMBER OF COMPONENTS
Chapter 4: PROBABILISTIC RISK ASSESSMENT AND RISK MANAGEMENT
4.1 TRADITIONAL ENGINEERING RISK ASSESSMENT
4.2 A RISK ACCEPTABILITY CRITERION BASED ON A SPECIFIED MAXIMUM TOLERABLE RISK LEVEL
4.3 RISK OF FAILURE IN CASE OF A TIME-DEPENDENT COST OF FAILURE
4.4 RISK-ASSESSMENT TOOLS
4.5 RISK MANAGEMENT
4.6 REDUCING THE RISK OF FAILURE BY DESIGNING AND MAINTAINING BARRIERS
Chapter 5: POTENTIAL LOSS FROM FAILURE FOR NON-REPAIRABLE COMPONENTS AND SYSTEMS WITH MULTIPLE FAILURE MODES
5.1 DRAWBACKS OF THE EXPECTED LOSS AS A MEASURE OF THE LOSS FROM FAILURES
5.2 POTENTIAL LOSS, CONDITIONAL LOSS AND RISK OF FAILURE
5.3 VARIANCE OF THE CONDITIONAL LOSS AND THE POTENTIAL LOSS FROM MULTIPLE MUTUALLY EXCLUSIVE FAILURE MODES
5.4 COUNTEREXAMPLES RELATED TO THE RISK OF FAILURE OF NON-REPAIRABLE SYSTEMS
5.5 DETERMINING THE LIFE DISTRIBUTION AND THE RISK OF FAILURE OF A COMPONENT CHARACTERISED BY MULTIPLE FAILURE MODES
Algorithm 5.1
5.6 UNCERTAINTY AND ERRORS ASSOCIATED WITH RELIABILITY PREDICTIONS
Algorithm 5.2
Algorithm 5.3
5.7 POTENTIAL LOSS AND POTENTIAL OPPORTUNITY
Chapter 6: LOSSES FROM FAILURES FOR REPAIRABLE SYSTEMS WITH COMPONENTS LOGICALLY ARRANGED IN SERIES
Algorithm 6.1
6.1 LOSSES FROM FAILURES FOR REPAIRABLE SYSTEMS WHOSE COMPONENT FAILURES FOLLOW A NON-HOMOGENEOUS POISSON PROCESS
6.2 LOSSES FROM FAILURES FOR REPAIRABLE SYSTEMS WHOSE COMPONENT FAILURES FOLLOW A HOMOGENEOUS POISSON PROCESS
6.3 COUNTEREXAMPLE RELATED TO REPAIRABLE SYSTEMS
6.4 FAILURE AND OPPORTUNITY
Chapter 7: RELIABILITY ANALYSIS OF COMPLEX REPAIRABLE SYSTEMS BASED ON CONSTRUCTING THE DISTRIBUTION OF THE POTENTIAL LOSSES
7.1 RELIABILITY NETWORKS OF TWO COMPETING PRODUCTION SYSTEMS
7.2 AN ALGORITHM FOR RELIABILITY ANALYSIS BASED ON THE POTENTIAL LOSSES FROM FAILURES
Algorithm 7.1
7.3 INPUT DATA AND RESULTS RELATED TO THE POTENTIAL LOSSES FOR TWO COMPETING PRODUCTION SYSTEMS
7.4 ANALYSIS OF THE RESULTS
7.5 INFLUENCE OF THE SYSTEM TOPOLOGY ON THE LOSSES FROM FAILURES
Chapter 8: RELIABILITY VALUE ANALYSIS FOR COMPLEX SYSTEMS
8.1 DERIVING THE VALUE FROM DISCOUNTED CASH-FLOW CALCULATIONS
8.2 INPUT DATA FOR THE RELIABILITY VALUE ANALYSIS
8.3 DETERMINING THE DISTRIBUTION OF THE NPV
Algorithm 8.1
8.4 RESULTS AND ANALYSIS RELATED TO THE NPV
8.5 ANALYSIS OF THE RESULTS RELATED TO THE PROBABILITY OF EXISTENCE OF THE MFFOP
Chapter 9: RELIABILITY ALLOCATION BASED ON MINIMISING THE TOTAL COST
9.1 MINIMISING THE TOTAL COST: VALUE FROM THE RELIABILITY INVESTMENT
9.2 RELIABILITY ALLOCATION TO MINIMISE THE TOTAL COST
9.3 RELIABILITY ALLOCATION TO MINIMISE THE TOTAL COST FOR A SYSTEM WITH COMPONENTS LOGICALLY ARRANGED IN SERIES
9.4 RELIABILITY ALLOCATION BY EXHAUSTIVE SEARCH THROUGH ALL AVAILABLE ALTERNATIVES
Algorithm 9.1
9.5 NUMERICAL EXAMPLES
9.6 APPLICATIONS
9.7 RELIABILITY ALLOCATION TO LIMIT THE EXPECTED LOSSES FROM FAILURES BELOW A MAXIMUM ACCEPTABLE LEVEL
Chapter 10: GENERIC APPROACHES TO REDUCING THE LIKELIHOOD OF CRITICAL FAILURES
10.1 REDUCING THE LOSSES FROM FAILURES BY IMPROVING THE RELIABILITY OF COMPONENTS
10.2 MEASURES GUARANTEEING A SMALL LIKELIHOOD OF A CRITICAL FAILURE DURING A SPECIFIED MINIMUM FAILURE-FREE OPERATING PERIOD
10.3 PREVENTIVE BARRIERS FOR REDUCING THE LIKELIHOOD OF FAILURE
10.4 INCREASING THE RELIABILITY OF COMPONENTS IN PROPORTION WITH THE LOSSES FROM FAILURES ASSOCIATED WITH THEM
10.5 LIMITING THE POTENTIAL LOSSES BY REDUCING THE LENGTH OF EXPOSURE
Chapter 11: SPECIFIC PRINCIPLES FOR REDUCING THE LIKELIHOOD OF FAILURES
11.1 REDUCING THE RISK OF FAILURE BY BUILDING IN REDUNDANCY
11.2 REDUCING THE RISK OF FAILURE BY INCREASING THE CONNECTIVITY OF THE RELIABILITY NETWORKS
11.3 DECREASING THE PROBABILITY OF AN ERROR OUTPUT BY USING VOTING SYSTEMS
11.4 REDUCING THE RISK OF FAILURE BY REDUCING THE SENSITIVITY TO FAILURE OF SINGLE COMPONENTS
11.5 REDUCING THE RISK OF FAILURE BY DERATING
11.6 IMPROVING RELIABILITY BY SIMPLIFYING COMPONENTS AND SYSTEMS
11.7 IMPROVING RELIABILITY BY ELIMINATING WEAK LINKS IN THE DESIGN
11.8 REDUCING THE RISK OF FAILURE BY A PROPER DESIGN OF MOVING PARTS AND REDUCING THEIR NUMBER
11.9 REDUCING THE RISK OF FAILURE BY MAINTAINING THE CONTINUITY OF ACTION
11.10 REDUCING THE RISK OF FAILURE BY INTRODUCING CHANGES WITH OPPOSITE SIGN TO UNFAVOURABLE CHANGES DURING SERVICE
11.11 REDUCING THE RISK OF FAILURE BY REDUCING THE FREQUENCY OF LOAD APPLICATIONS
11.12 RISK REDUCTION BY MODIFYING THE SHAPE OF COMPONENTS AND CHANGING THE AGGREGATE STATE
11.13 REDUCING THE RISK OF FAILURE CAUSED BY HUMAN ERRORS
11.14 REDUCING THE RISK OF FAILURE BY REDUCING THE PROBABILITY OF CLUSTERING OF EVENTS
Chapter 12: REDUCING THE RISK OF FAILURE BY REDUCING THE NEGATIVE IMPACT FROM THE VARIABILITY OF DESIGN PARAMETERS
12.1 IMPROVING RELIABILITY BY REDUCING THE VARIABILITY OF DESIGN PARAMETERS
12.2 REDUCING THE VARIABILITY OF STRENGTH BY IMPROVING THE MATERIAL QUALITY
12.3 REDUCING THE VARIABILITY OF GEOMETRICAL PARAMETERS, PREVENTING FITTING FAILURES AND JAMMING
12.4 REDUCING THE RISK OF FAILURE BY MAKING THE DESIGN ROBUST
Algorithm 12.1
Chapter 13: GENERIC SOLUTIONS FOR REDUCING THE LIKELIHOOD OF OVERSTRESS AND WEAROUT FAILURES
13.1 IMPROVING RELIABILITY BY A RELATIVE SEPARATION OF THE UPPER TAIL OF THE LOAD DISTRIBUTION AND THE LOWER TAIL OF THE STRENGTH DISTRIBUTION
13.2 INCREASING THE RESISTANCE AGAINST FAILURES CAUSED BY EXCESSIVE STRESSES
13.3 REDUCING THE RISK OF FAILURE BY OPTIMISING LOADING AND AVOIDING UNFAVOURABLE STRESS STATES
13.4 REDUCING THE RISK OF FAILURE DUE TO EXCESSIVE DEFORMATION
13.5 REDUCING THE RISK OF FAILURE BY IMPROVING THE RESISTANCE TO FRACTURE
13.6 REDUCING THE RISK OF OVERSTRESS FAILURE BY MODIFYING THE COMPONENT GEOMETRY
13.7 GENERIC METHODS FOR REDUCING WEAROUT FAILURES
13.8 IMPROVING RELIABILITY BY ELIMINATING TENSILE RESIDUAL STRESSES AT THE SURFACE OF COMPONENTS
13.9 REDUCING THE RISK OF FAILURE BY MITIGATING THE HARMFUL EFFECT OF THE ENVIRONMENT
Chapter 14: REDUCING THE RISK OF FAILURE BY REMOVING LATENT FAULTS, AND AVOIDING COMMON CAUSE FAILURES
14.1 FAULTS AND FAILURES
14.2 ASSESSING THE LIKELIHOOD OF LATENT CRITICAL FAULTS
14.3 REDUCING THE RISK OF FAILURE BY REMOVING LATENT FAULTS AND DESIGNING FAULT-TOLERANT SYSTEMS
14.4 IMPROVING COMPONENT RELIABILITY BY TESTING TO PRECIPITATE LATENT FAULTS
14.5 COMMON CAUSE FAILURES AND REDUCING THE RISK ASSOCIATED WITH THEM
Chapter 15: CONSEQUENCE ANALYSIS AND GENERIC PRINCIPLES FOR REDUCING THE CONSEQUENCES FROM FAILURES
15.1 CONSEQUENCE ANALYSIS AND CONSEQUENCE MODELLING TOOLS
15.2 GENERIC PRINCIPLES AND TECHNIQUES FOR REDUCING THE CONSEQUENCES FROM FAILURES
15.3 GENERIC DUAL MEASURES FOR REDUCING BOTH THE LIKELIHOOD OF FAILURES AND THE CONSEQUENCES
Chapter 16: LOCALLY INITIATED FAILURE AND RISK REDUCTION
16.1 A GENERIC EQUATION RELATED TO THE PROBABILITY OF FAILURE OF A STRESSED COMPONENT WITH COMPLEX SHAPE
16.2 DETERMINING THE CONDITIONAL INDIVIDUAL PROBABILITY OF INITIATING FAILURE, CHARACTERISING A SINGLE FLAW
16.3 IMPORTANT SPECIAL CASES RELATED TO THE CONDITIONAL INDIVIDUAL PROBABILITY OF INITIATING FAILURE
Algorithm 16.1
16.4 DETERMINING THE LOWER TAIL OF THE STRENGTH DISTRIBUTION
16.5 STATISTICS OF FAILURE INITIATED BY FLAWS
16.6 OPTIMISING DESIGNS BY DECREASING THEIR VULNERABILITY TO FAILURE INITIATED BY FLAWS
16.7 DETERMINING THE SPATIAL DISTRIBUTION OF THE FAILURE INITIATION SITE
16.8 PROBABILITY OF LOCALLY INITIATED FAILURE IN A FINITE DOMAIN
16.9 EQUATION RELATED TO THE FATIGUE LIFE DISTRIBUTION OF A COMPONENT CONTAINING DEFECTS
16.10 PROBABILITY OF FAILURE FROM TWO STATISTICALLY DEPENDENT FAILURE MODES
APPENDIX 16.1
APPENDIX: MONTE CARLO SIMULATION ROUTINES USED IN THE ALGORITHMS FOR RISK-BASED RELIABILITY ANALYSIS
REFERENCES
INDEX
MT
M.Todinov pioneered research on: the theory of repairable flow networks and networks with disturbed flows, risk-based reliability analysis - driven by the cost of system failure, fracture initiated by flaws in components with complex shape, reliability dependent on the relative configurations of random variables and optimal allocation of a fixed budget to achieve a maximal risk reduction.
A sample of M.Todinov’s results include: introducing the hazard stress function for modelling the probability of failure of materials and deriving the correct alternative of the Weibull model; stating a theorem regarding the exact upper bound of properties from multiple sources and a theorem regarding variance of a distribution mixture; the formulation and proof of the necessary and sufficient conditions of the Palmgren-Miner rule and Scheil’s additivity rule; deriving the correct alternative of the Johnson-Mehl-Avrami-Kolmogorov equation and stating the dual network theorems for static flows networks and networks with disturbed flows.