Book Image

Dynamic System Reliability

By : Liudong Xing, Gregory Levitin, Chaonan Wang
Book Image

Dynamic System Reliability

By: Liudong Xing, Gregory Levitin, Chaonan Wang

Overview of this book

This book focuses on hot issues of dynamic system reliability, systematically introducing the reliability modeling and analysis methods for systems with imperfect fault coverage, systems with function dependence, systems subject to deterministic or probabilistic common-cause failures, systems subject to deterministic or probabilistic competing failures, and dynamic standby sparing systems. It presents recent developments of such extensions involving reliability modeling theory, reliability evaluation methods, and features numerous case studies based on real-world examples. The presented dynamic reliability theory can enable a more accurate representation of actual complex system behavior, thus more effectively guiding the reliable design of real-world critical systems. The book begins by describing the evolution from the traditional static reliability theory to the dynamic system reliability theory and provides a detailed investigation of dynamic and dependent behaviors in subsequent chapters. Although written for those with a background in basic probability theory and stochastic processes, the book includes a chapter reviewing the fundamentals that readers need to know in order to understand the contents of other chapters that cover advanced topics in reliability theory and case studies.
Table of Contents (14 chapters)
Free Chapter
1 Introduction
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Functional Dependence

Functional dependence takes place when the malfunction of one system component (referred to as the trigger) causes other components (referred to as dependent components) within the same system to become unusable or inaccessible. For example, in a computer system, peripheral devices such as keyboards and monitors are accessed through I/O controllers. If the I/O controller malfunctions, the peripheral devices connected to it become unusable [1]. In other words, the peripheral devices have functional dependence on the I/O controller. Another example is a computer network system where a computer can access the Internet or communicate with other computers through routers [2]. The router is the trigger component, and computers connected to the router have functional dependence on the router.

The functional dependence behavior is modeled via Functional DEPendence (FDEP) gates in the dynamic fault tree (DFT) analysis [3,4] (Section 2.3.2). Note that the FDEP gate has...