Analysis of down times of jib cranes-A stochastic approach

In this paper a case study dealing with the maintenance problem of jib cranes is presented. A jib crane is viewed as a complex system whose performance is observed as a single realization over period of time. After pointing out limitations of existing stochastic models to analyze the observed realiz...

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Bibliographic Details
Published in:Naval research logistics 2002-04, Vol.49 (3), p.231-243
Main Authors: Dharmadhikari, Avinash, Deshmukh, S.R.
Format: Article
Language:English
Subjects:
Data structures
Failure (mechanical)
failure modes
higher-order Markov processes
Jib cranes
likelihood ratio tests
Markov processes
Mathematical models
Preventive maintenance
Statistical methods
time gaps between failures
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Summary:In this paper a case study dealing with the maintenance problem of jib cranes is presented. A jib crane is viewed as a complex system whose performance is observed as a single realization over period of time. After pointing out limitations of existing stochastic models to analyze the observed realization a new family of bivariate stochastic processes is introduced. The data of jib crane is analyzed using new model and cross‐validated using part of the data set. It is noted that the new family of stochastic processes is useful to analyze bivariate data where one of the variables is finitely valued and the other is nonnegative and continuous. © 2002 Wiley Periodicals, Inc. Naval Research Logistics 49: 231–243, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/nav.10006
ISSN:0894-069X
1520-6750
DOI:10.1002/nav.10006