Systems Reliability and Failure Prevention

Herbert Hecht ,

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Systems Reliability and Failure Prevention

About the eBook

This timely resource offers you a comprehensive, unified treatment of the techniques and practice of systems reliability and failure prevention, without the use of advanced mathematics. Featuring numerous, in-depth real-world examples, the book distills the author’s many years of practical experience in designing and testing critical systems. The book helps you set reliability requirements for a new product, monitor compliance with these requirements during development and later life cycle phases, account for software failures in an integrated reliability assessment, and allocate a fixed reliability improvement budget to guide decisions by cost considerations and trade-offs.

The book opens with areview of the essentials of reliability engineering and then focuses on theorganizational causes of failure, a critical topic that rarely receivesattention. It thoroughly examines the techniques for reducing and preventingfailures that affect system reliability - conservative design, the use ofanalytical tools and procedures, extensive testing and redundancy - and discussestheir capabilities and limitations. Moreover, this comprehensive referencecovers the formulation of functional and reliability requirements for criticalsystems, and concludes with examples from communication networks, aircraft andmissile systems, the process industry and satellite missions.



Essentialsof Reliability Engineering - The Exponential Distribution. Parameter Estimation.Reliability Block Diagrams. State Transition Methods. The Devil is in theDetails. Summary.

OrganizationalCause of Failures - Failures are not Inevitable. Thoroughly Documented Failures.Summary.

AnalyticalApproaches to Failure Prevention - Failure Modes and Effects Analysis (FMEA).Sneak Circuit Analysis (SCA). Fault Tree Analysis (FTA). Summary.

Testingto Prevent Failures - Reliability Demonstration. Design Margins. ReliabilityRelevance of Tests during Development. Reliability Relevance ofPost-Development Tests. In-Service Testing. Summary.

RedundancyTechniques - Introduction to Redundancy at the Component Level. Dual Redundancy.Triple Redundancy. Higher Order Redundant Configurations. Other Forms ofRedundancy. Summary.

SoftwareReliability - The Nature and Statistical Measures of Software Failures. FailurePrevention Practices. Software Fault Tolerance. Software Reliability Models.Summary.

FailurePrevention in the Life Cycle - Life Cycle Format and Terminology. ReliabilityIssues in Life Cycle Phases. The Reliability Program Plan. Reviews and Audits.Summary.

Costof Failure and Failure Prevention - Optimum Reliability. Time Considerations ofExpenditures. Estimation of Cost Elements. A Generic Cost of Reliability Model.Summary.

CostTrade-Offs - Reliability Improvement to Meet Quality of Service Requirements.Increasing Maintenance Effectiveness. Replacement of Communication Satellites.Summary.

Applications - PowerSupply for Ground Communications. Reliability of Aircraft Electronics Bay.Spacecraft Attitude Determination. Summary.

Herbert Hecht is vice chairman of theboard of SoHaR Incorporated, an R&D and consulting company for highdependability systems. He holds a Ph.D. in engineering from the University ofCalifornia at Los Angeles and an M.S. in electrical engineering fromPolytechnic University of New York.

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