9781577663867

An Introduction To Reliability And Maintainability Engineering

by
  • ISBN13:

    9781577663867

  • ISBN10:

    1577663861

  • Format: Paperback
  • Copyright: 2005-02-28
  • Publisher: Waveland Pr Inc
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Summary

This practical and modern approach to reliability deals with core concepts, major models, and proven techniques. The computer software packaged in the Instructor's Manual allows students to focus on concepts and analysis instead of tedius numerical calculations. Relevant to all departments of engineering, particularly industrial, this text provides an introduction to probability and statistical techniques that is necessary to support the development of reliability and maintainability concepts.

Table of Contents

Preface xv
Course Software xvii
Introduction
1(22)
The Study of Reliability and Maintainability
3(2)
Reliability Improvement
Random versus Deterministic Failure Phenomena
Concepts, Terms, and Definitions
5(2)
Applications
7(3)
A Brief History
10(1)
Scope of the Text
11(12)
Appendix 1A A Probability Primer
13(10)
Random Events
Bayes' Formula
Random Variables
Discrete Distributions
Binomial Distribution
Poisson Distribution
Continuous Distributions
PART 1 Basic Reliability Models
The Failure Distribution
23(18)
The Reliability Function
23(3)
Mean Time to Failure
26(2)
Hazard Rate Function
28(3)
Bathtub Curve
31(1)
Conditional Reliability
32(2)
Summary
34(7)
Appendix 2A Derivation of Equation (2.8)
35(1)
Appendix 2B Derivation of Equation (2.12)
36(1)
Appendix 2C Conditional Reliability and Failure Rates
36(1)
Appendix 2D Intermediate Calculations for the Linear Bathtub Curve
37(1)
Appendix 2E Table of Integrals
38(1)
Indefinite Integrals
Definite Integrals
Exercises
38(3)
Constant Failure Rate Model
41(17)
The Exponential Reliability Function
41(4)
Failure Modes
45(2)
Failure Modes with CFR Model
Failures on Demand
Applications
47(4)
Renewal Process
Repetitive Loading
Reliability Bounds
The Two-Parameter Exponential Distribution
51(1)
Poisson Process
52(2)
Redundancy and the CFR Model
54(4)
Exercises
55(3)
Time-Dependent Failure Models
58(25)
The Weibull Distribution
58(11)
Design Life, Median, and Mode
Burn-In Screening for Weibull
Failure Modes
Identical Weibull Components
The Three-Parameter Weibull
Redundancy with Weibull Failures
The Normal Distribution
69(4)
The Lognormal Distribution
73(10)
Appendix 4A Derivation of the MTTF for the Weibull Distribution
77(1)
Appendix 4B Derivation of the Mode for the Weibull Distribution
78(1)
Appendix 4C Minimum Extreme-Value Distribution
78(1)
Appendix 4D Hazard Rate for the Two-Component Weibull Redundant System
79(1)
Exercises
79(4)
Reliability of Systems
83(25)
Serial Configuration
83(2)
Parallel Configuration
85(2)
Combined Series-Parallel Systems
87(6)
High-Level versus Low-Level Redundancy
k-out-of-n Redundancy
Complex Configurations
System Structure Function, Minimal Cuts, and Minimal Paths (Optional)
93(4)
Coherent Systems
Minimal Path and Cut Sets
System Bounds
Common-Mode Failures
97(1)
Three-State Devices
98(10)
Series Structure
Parallel Structure
Low-Level Redundancy
High-Level Redundancy
Exercises
102(6)
State-Dependent Systems
108(16)
Markov Analysis
108(3)
Load-Sharing System
111(1)
Standby Systems
112(5)
Identical Standby Units
Standby System with Switching Failures
Three-Component Standby System
Degraded Systems
117(1)
Three-State Devices
118(6)
Appendix 6A Solution to Two-Component Redundant System
119(1)
Appendix 6B Solution to Load-Sharing System
120(1)
Appendix 6C Solution to Standby System Model
120(1)
Exercises
121(3)
Physical Reliability Models
124(21)
Covariate Models
124(4)
Proportional Hazards Models
Location-Scale Models
Static Models
128(7)
Random Stress and Constant Strength
Constant Stress and Random Strength
Random Stress and Random Strength
Dynamic Models
135(2)
Periodic Loads
Random Loads
Random Fixed Stress and Strength
Physics-of-Failure Models
137(8)
Exercises
141(4)
Design for Reliability
145(44)
Reliability Specification and System Measurements
147(4)
System Effectiveness
Economic Analysis and Life-Cycle Costs
Reliability Allocation
151(6)
Exponential Case
Optimal Allocations
ARINC Method
AGREE Method
Redundancies
Design Methods
157(9)
Parts and Material Selection
Derating
Stress-Strength Analysis
Complexity and Technology
Redundancy
Failure Analysis
166(6)
System Definition
Identification of Failure Modes
Determination of Cause
Assessment of Effect
Classification of Severity
Estimation of Probability of Occurrence
Computation of Criticality Index
Determination of Corrective Action
System Safety and Fault Tree Analysis
172(17)
Fault Tree Analysis
Minimal Cut Sets
Quantitative Analysis
Exercises
183(6)
Maintainability
189(29)
Analysis of Downtime
189(2)
The Repair-Time Distribution
191(3)
Exponential Repair Times
Lognormal Repair Times
Stochastic Point Processes
194(8)
Renewal Process
Minimal Repair Process
Overhaul and Cycle Time
System Repair Time
202(2)
Reliability under Preventive Maintenance
204(3)
State-Dependent Systems with Repair
207(11)
Appendix 9A The MTTF for the Preventive Maintenance Model
211(1)
Appendix 9B Solution to the Active Redundant System with Repair
211(1)
Appendix 9C Solution to Standby System with Repair
212(1)
Exercises
213(5)
Design for Maintainability
218(36)
Maintenance Requirements
219(6)
Measurements and Specifications
Maintenance Concepts and Procedures
Component Reliability and Maintainability
Design Methods
225(10)
Fault Isolation and Self-Diagnostics
Parts Standardization and Interchangeability
Modularization and Accessibility
Repair versus Replacement
Proactive Maintenance
Human Factors and Ergonomics
235(2)
Maintenance and Spares Provisioning
237(7)
Finite Population Queuing Model with Spares
Component Sparing
Maintainability Prediction and Demonstration
244(10)
Maintainability Prediction
Maintainability Demonstration
Appendix 10A Birth-Death Queuing Model
248(2)
Exercises
250(4)
Availability
254(29)
Concepts and Definitions
254(3)
Inherent Availability
Achieved Availability
Operational Availability
Generalized Operational Availability
Exponential Availability Model
257(1)
System Availability
258(6)
Availability with Standby Systems
Steady-State Availability
Matrix Approach
Inspection and Repair Availability Model
264(2)
Design Trade-Off Analysis
266(17)
Maintainability Allocation
Economic Analysis
Concave Costs
Convex Cost Functions
Profit and Life-Cycle Cost Trade-Offs
Appendix 11A Solution to Single Unit with Repair Model
275(1)
Exercises
275(8)
PART 2 The Analysis of Failure Data
Data Collection and Empirical Methods
283(25)
Data Collection
283(3)
Empirical Methods
286(16)
Ungrouped Complete Data
Grouped Complete Data
Ungrouped Censored Data
Grouped Censored Data
Static Life Estimation
302(6)
Exercises
303(5)
Reliability Testing
308(34)
Product Testing
308(1)
Reliability Life Testing
309(1)
Test Time Calculations
310(2)
Length of Test
Burn-In Testing
312(3)
Acceptance Testing
315(8)
Binomial Acceptance Testing
Sequential Tests
Accelerated Life Testing
323(8)
Number of Units on Test
Accelerated Cycling
Constant-Stress Models
Other Acceleration Models
Experimental Design
331(4)
Competing Failure Modes
335(7)
Appendix 13A Derivation of Expected Test Time
336(1)
Appendix 13B Expected Test Time (Type II Testing)
337(1)
Exercises
338(4)
Reliability Growth Testing
342(16)
Reliability Growth Process
342(1)
Idealized Growth Curve
343(2)
Duane Growth Model
345(4)
AMSAA Model
349(4)
Parameter Estimation for the Power Law Intensity Function
Other Growth Models
353(5)
Exercises
355(3)
Identifying Failure and Repair Distributions
358(34)
Identifying Candidate Distributions
359(3)
Probability Plots and Least-Squares Curve-Fitting
362(12)
Exponential Plots
Weibull Plots
Normal Plots
Lognormal Plots
Multiply Censored Time Plots
Parameter Estimation
374(8)
Maximum Likelihood Estimator
Exponential MLE
Weibull MLE
Normal and Lognormal MLEs
Maximum Likelihood Estimation with Multiply Censored Data
Location Parameter Estimation
Confidence Intervals
382(3)
Confidence Intervals for the Constant Failure Rate Model
Confidence Intervals for Other Distributions
Parameter Estimation for Covariate Models
385(7)
Appendix 15A Weibull Maximum Likelihood Estimator
387(1)
Appendix 15B Weibull MLE with Multiply Censored Data
388(1)
Appendix 15C MLE for Normal and Lognormal Distributions with Censored Data
388(1)
Exercises
389(3)
Goodness-of-Fit Tests
392(21)
Chi-Square Goodness-of-Fit Test
393(6)
Bartlett's Test for the Exponential Distribution
399(1)
Mann's Test for the Weibull Distribution
400(2)
Kolmogorov-Smirnov Test for Normal and Lognormal Distributions
402(2)
Tests for the Power-Law Process Model
404(3)
On Fitting Distributions
407(6)
Exercises
408(5)
PART 3 Application
Reliability Estimation and Application
413(16)
Case 1: Redundancy
413(2)
Case 2: Burn-In Testing
415(3)
Case 3: Preventive Maintenance Analysis
418(3)
Case 4: Reliability Allocation
421(2)
Case 5: Reliability Growth Testing
423(1)
Case 6: Repairable System Analysis
424(2)
Case 7: Multiply Censored Data
426(3)
Exercise
428(1)
Implementation
429(20)
Objectives, Functions, and Processes
429(1)
The Economics of Reliability and Maintainability and System Design
430(7)
Life-Cycle Cost Model
Minimal Repair
Organizational Considerations
437(2)
Data Sources and Data Collection Methods
439(6)
Field Data
Process Reliability and Operational Failures
External Data Sources
Product Liability, Warranties, and Related Matters
445(2)
Software Reliability
447(2)
References 449(6)
Appendix 455(24)
Index 479

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