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Replacement Policies with a Random Threshold Number of Faults

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Proceedings of the Institute of Industrial Engineers Asian Conference 2013

Abstract

Most systems fail when a certain amount of reliability quantities have exceeded their threshold levels. The typical example is cumulative damage model in which a system is subjected to shocks and suffers some damage due to shocks, and fails when the total damage has exceeded a failure level K. This paper proposes the following reliability model: Faults occur at a nonhomogeneous Poisson process and the system fails when N faults have occurred, which could be applied to optimization problems in computer systems with fault tolerance, and we suppose that the system is replaced before failure at a planned time T. Two cases where the threshold fault number N is constantly given and is a random variable are considered, we obtain the expected cost rates and discuss their optimal policies.

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Acknowledgments

This work is partially supported by Grant-in-Aid for Scientific Research (C) of Japan Society for the Promotion of Science under Grant No. 22500897 and No. 24530371; National Science Council of Taiwan NSC 100-2628-E-0330-002.

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Correspondence to Xufeng Zhao .

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© 2013 Springer Science+Business Media Singapore

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Zhao, X., Chen, M., Iwata, K., Nakamura, S., Nakagawa, T. (2013). Replacement Policies with a Random Threshold Number of Faults. In: Lin, YK., Tsao, YC., Lin, SW. (eds) Proceedings of the Institute of Industrial Engineers Asian Conference 2013. Springer, Singapore. https://doi.org/10.1007/978-981-4451-98-7_19

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  • DOI: https://doi.org/10.1007/978-981-4451-98-7_19

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-4451-97-0

  • Online ISBN: 978-981-4451-98-7

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