Read e-book online Analyses for Durability and System Design Lifetime: A PDF

By Joseph H. Saleh

ISBN-10: 0511370989

ISBN-13: 9780511370984

ISBN-10: 0521867894

ISBN-13: 9780521867894

A subject matter in engineering layout is a system's layout lifetime. This publication presents a systemic qualitative and quantitative method of those difficulties addressing, first, the technicality of sturdiness, moment, the marginal fee of sturdiness, and, 3rd, the sturdiness selection challenge for complicated structures with community externalities (competition and industry uncertainty) and obsolescence (technology evolution). additionally addressed is the expanding rigidity among the layout lifetimes of complicated structures and the shortening time scales linked to the obsolescence of the know-how. The booklet ends with a dialogue of suppleness in method layout. Dr. Joseph H. Saleh is an Assistant Professor of Aerospace Engineering on the Georgia Institute of know-how. He got his Ph.D. from the dept of Aeronautics and Astronautics at MIT and served because the govt Director for the Ford-MIT Alliance. His study specializes in problems with layout lifetime and the way to embed flexibility within the layout of complicated engineering platforms normally and in aerospace method particularly. Dr. Saleh is the writer or co-author of fifty technical courses and the recipient of diverse awards for his instructing and study contributions. He served as a technical advisor to NASA's Jet Propulsion Laboratory and has collaborated on study tasks with a number of aerospace businesses.

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Additional info for Analyses for Durability and System Design Lifetime: A Multidisciplinary Approach (Cambridge Aerospace Series)

Example text

One disadvantage customers will encounter with longer-lived systems is an increased risk that these systems will be technically and commercially obsolete before the end of their lifetimes, and hence have an increased risk of loss of revenue. 7 The reader will notice that some of the stakeholders’ advantages in reducing system design lifetimes transform into disadvantages when longer design lifetimes are considered, and vice versa. 3 To Reduce or to Extend a Product’s Durability? From a manufacturer’s perspective, there are three main implications associated with an increased system design lifetime.

Kahn (1986) took issue with Coase’s claim that, in the absence of precommitment, a monopolist seller would act competitively, not in the long run but “in the twinkling of an eye” (Coase, 1972). 16 He then showed by relaxing two assumptions underlying Coase’s result, namely the no barrier to transaction or the length of the trading period being zero17 and constant marginal cost of production assumptions, that the time inconsistency problem facing a monopolist seller is not as acute as Coase suggested and does not lead 16 17 As opposed to a discrete analysis of the problem, for example, Bulow’s (1982) two-period model.

It should be noted that in some cases the 4 Who, in an industry value chain, makes the decision for a product durability or system design lifetime reflects to some extent where market power resides. For example, in the satellite business (or value chain), satellite manufacturers rarely decide on a spacecraft design lifetime. It is primarily the customer, the satellite operator, who imposes the spacecraft design lifetime on manufacturers. This present situation is a reflection of both the industry structure and the overcapacity in satellite production compared with levels of demand.

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Analyses for Durability and System Design Lifetime: A Multidisciplinary Approach (Cambridge Aerospace Series) by Joseph H. Saleh


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