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Published in:
2011 | OriginalPaper | Chapter
Cumulative Damage Models with Replacement Last
Authors : Xufeng Zhao, Keiko Nakayama, Syouji Nakamura
Published in: Software Engineering, Business Continuity, and Education
Publisher: Springer Berlin Heidelberg
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This paper proposes a damage model with replacement last. First, the preventive replacement policies with a damage process is given: the unit is replaced at a damage level
Z
or a planned time
T
, whichever occurs last. Second, optimal
Z
for a given
T
is derived, and compare such an optimal policy with those of replacement first and standard replacement. It shows that the ratio of replacement costs plays an important role in determining which policy is better. Third, a numerical example is given in an exponential case.