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When a unit repeats some works over again and undergoes minimal repairs at failures, it is more practical to replace it preventively at the end of working cycles or at its failure times. In this case, it would be an interesting problem to know which is better to replace the unit at a number of working cycles or at random failures from the point of cost. For this purpose, we give models of the expected cost rates for the following replacement policies: (1) The unit is replaced at a working cycle N and at a failure number K, respectively; (2) Replacement first and last policies with working cycle N and failure number K, respectively; (3) Replacement overtime policies with working cycle N and failure number K, respectively. Optimizations and comparisons of the policies for N and K are made analytically and numerically.
Satoshi MIZUTANI
Aichi Institute of Technology
Xufeng ZHAO
Nanjing University of Aeronautics and Astronautics
Toshio NAKAGAWA
Aichi Institute of Technology
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Satoshi MIZUTANI, Xufeng ZHAO, Toshio NAKAGAWA, "Which Replacement Is Better at Working Cycles or Number of Failures" in IEICE TRANSACTIONS on Fundamentals,
vol. E103-A, no. 2, pp. 523-532, February 2020, doi: 10.1587/transfun.2019EAP1049.
Abstract: When a unit repeats some works over again and undergoes minimal repairs at failures, it is more practical to replace it preventively at the end of working cycles or at its failure times. In this case, it would be an interesting problem to know which is better to replace the unit at a number of working cycles or at random failures from the point of cost. For this purpose, we give models of the expected cost rates for the following replacement policies: (1) The unit is replaced at a working cycle N and at a failure number K, respectively; (2) Replacement first and last policies with working cycle N and failure number K, respectively; (3) Replacement overtime policies with working cycle N and failure number K, respectively. Optimizations and comparisons of the policies for N and K are made analytically and numerically.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2019EAP1049/_p
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@ARTICLE{e103-a_2_523,
author={Satoshi MIZUTANI, Xufeng ZHAO, Toshio NAKAGAWA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Which Replacement Is Better at Working Cycles or Number of Failures},
year={2020},
volume={E103-A},
number={2},
pages={523-532},
abstract={When a unit repeats some works over again and undergoes minimal repairs at failures, it is more practical to replace it preventively at the end of working cycles or at its failure times. In this case, it would be an interesting problem to know which is better to replace the unit at a number of working cycles or at random failures from the point of cost. For this purpose, we give models of the expected cost rates for the following replacement policies: (1) The unit is replaced at a working cycle N and at a failure number K, respectively; (2) Replacement first and last policies with working cycle N and failure number K, respectively; (3) Replacement overtime policies with working cycle N and failure number K, respectively. Optimizations and comparisons of the policies for N and K are made analytically and numerically.},
keywords={},
doi={10.1587/transfun.2019EAP1049},
ISSN={1745-1337},
month={February},}
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TY - JOUR
TI - Which Replacement Is Better at Working Cycles or Number of Failures
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 523
EP - 532
AU - Satoshi MIZUTANI
AU - Xufeng ZHAO
AU - Toshio NAKAGAWA
PY - 2020
DO - 10.1587/transfun.2019EAP1049
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E103-A
IS - 2
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - February 2020
AB - When a unit repeats some works over again and undergoes minimal repairs at failures, it is more practical to replace it preventively at the end of working cycles or at its failure times. In this case, it would be an interesting problem to know which is better to replace the unit at a number of working cycles or at random failures from the point of cost. For this purpose, we give models of the expected cost rates for the following replacement policies: (1) The unit is replaced at a working cycle N and at a failure number K, respectively; (2) Replacement first and last policies with working cycle N and failure number K, respectively; (3) Replacement overtime policies with working cycle N and failure number K, respectively. Optimizations and comparisons of the policies for N and K are made analytically and numerically.
ER -