EVALUATION OF USED-SYSTEM LIFE CYCLE COSTS USING FUZZY SET THEORY

We present a model for estimating the total life of each component in a used, multi-component system through the use of fuzzy set theory and linguistic variables. The resulting component life estimates yield times at which a cost for component replacement is incurred. Through the use of a general co...

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Bibliographic Details
Published in:IIE transactions 1993-11, Vol.25 (6), p.84-88
Main Authors: USHER, JOHN S., WHITFIELD, GLENN M.
Format: Article
Language:English
Subjects:
Applied sciences
Cost control
Decision making models
Exact sciences and technology
Fuzzy sets
Life cycles
Operational research and scientific management
Operational research. Management science
Reliability theory. Replacement problems
Set theory
Studies
Systems analysis
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Summary:We present a model for estimating the total life of each component in a used, multi-component system through the use of fuzzy set theory and linguistic variables. The resulting component life estimates yield times at which a cost for component replacement is incurred. Through the use of a general cost model, we find the equivalent uniform annual cost (EUAC) of owning and operating the system. This cost model is shown, through an illustrative example, to be a useful tool for selecting a used system from a set of competing alternatives.
ISSN:0740-817X
2472-5854
1545-8830
2472-5862
DOI:10.1080/07408179308964330