Redundant Designs

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

The concept of redundancy is common in day-to-day life. In engineering,
redundancy allows a system to work safely, often by creating a backup that
enters on service if the primary system fails. Redundancy in management may
have the meaning of plan-B if the initial plan fails. In nature, redundancy appears
in many living organisms, man included. This chapter starts by presenting
examples of redundancy in nature, then showing how redundancy applies to
many engineered systems, and how redundancy may have different meanings in
engineering. According to Axiomatic Design (AD), a redundant design has more
design parameters (DPs) than functional requirements (FRs). There are two types
of approaches for redundancy: reliability motivated and the functionally
motivated approach. These thoughts give room for discussing the ontology of
redundant design, allowing the derivation of new theorems on redundancy. One
of these theorems helps to decouple coupled designs.
Original languageEnglish
Title of host publicationDesign Engineering and Science
EditorsNam P. Suh, Miguel Cavique, Joseph T. Foley
Place of PublicationCham
PublisherSpringer
Chapter10
Pages285-305
ISBN (Electronic)978-3-030-49232-8
ISBN (Print)978-3-030-49231-1
DOIs
Publication statusPublished - 2021

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