Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure

Zhao Deliang; Xu Hongze

doi:doi:10.11648/j.sd.20190701.14

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Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure

Zhao Deliang, Xu Hongze

Published in Science Discovery (Volume 7, Issue 1)

Received: 7 March 2019 Published: 8 March 2019

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Abstract

The rail transit operation control system and nuclear reactor control system are extremely high for safety and reliability, especially the high speed maglev of more than 600 kilometers per hour. Therefore, the effect of common cause failure on the reliability of safety critical computer must be considered.The safety critical system is the key of the above-mentioned safety demanding system. In this paper, the structure and working principle of a safety critical computer with two-out-of-three and double two-out-of-two are analyzed.Considering the common cause failure and maintenance rate, by using Markov model, the reliability models of safety critical computer system with with two-out-of-three and double two-out-of-two are established. The simulation results show that the existence of common cause failure greatly reduces the reliability of the system. The maintenance rate can improve the reliability of the system. At the same time, considering the common cause failure and the maintenance rate, it is proved that the reliability of the two-out-of-three safety critical computer system is higher than double two-out-of-two safety critical computer system. Therefore, it provides theoretical support for the design of the subsequent differentiated security computer platform.

Published in	Science Discovery (Volume 7, Issue 1)
DOI	10.11648/j.sd.20190701.14
Page(s)	18-23
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Safety Critical Computer, 2oo3, 2x2oo2, Common Cause Failure, Reliability

References

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APA Style

Zhao Deliang, Xu Hongze. (2019). Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure. Science Discovery, 7(1), 18-23. https://doi.org/10.11648/j.sd.20190701.14

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ACS Style

Zhao Deliang; Xu Hongze. Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure. Sci. Discov. 2019, 7(1), 18-23. doi: 10.11648/j.sd.20190701.14

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AMA Style

Zhao Deliang, Xu Hongze. Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure. Sci Discov. 2019;7(1):18-23. doi: 10.11648/j.sd.20190701.14

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@article{10.11648/j.sd.20190701.14,
  author = {Zhao Deliang and Xu Hongze},
  title = {Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure},
  journal = {Science Discovery},
  volume = {7},
  number = {1},
  pages = {18-23},
  doi = {10.11648/j.sd.20190701.14},
  url = {https://doi.org/10.11648/j.sd.20190701.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20190701.14},
  abstract = {The rail transit operation control system and nuclear reactor control system are extremely high for safety and reliability, especially the high speed maglev of more than 600 kilometers per hour. Therefore, the effect of common cause failure on the reliability of safety critical computer must be considered.The safety critical system is the key of the above-mentioned safety demanding system. In this paper, the structure and working principle of a safety critical computer with two-out-of-three and double two-out-of-two are analyzed.Considering the common cause failure and maintenance rate, by using Markov model, the reliability models of safety critical computer system with with two-out-of-three and double two-out-of-two are established. The simulation results show that the existence of common cause failure greatly reduces the reliability of the system. The maintenance rate can improve the reliability of the system. At the same time, considering the common cause failure and the maintenance rate, it is proved that the reliability of the two-out-of-three safety critical computer system is higher than double two-out-of-two safety critical computer system. Therefore, it provides theoretical support for the design of the subsequent differentiated security computer platform.},
 year = {2019}
}

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TY  - JOUR
T1  - Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure
AU  - Zhao Deliang
AU  - Xu Hongze
Y1  - 2019/03/08
PY  - 2019
N1  - https://doi.org/10.11648/j.sd.20190701.14
DO  - 10.11648/j.sd.20190701.14
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 18
EP  - 23
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20190701.14
AB  - The rail transit operation control system and nuclear reactor control system are extremely high for safety and reliability, especially the high speed maglev of more than 600 kilometers per hour. Therefore, the effect of common cause failure on the reliability of safety critical computer must be considered.The safety critical system is the key of the above-mentioned safety demanding system. In this paper, the structure and working principle of a safety critical computer with two-out-of-three and double two-out-of-two are analyzed.Considering the common cause failure and maintenance rate, by using Markov model, the reliability models of safety critical computer system with with two-out-of-three and double two-out-of-two are established. The simulation results show that the existence of common cause failure greatly reduces the reliability of the system. The maintenance rate can improve the reliability of the system. At the same time, considering the common cause failure and the maintenance rate, it is proved that the reliability of the two-out-of-three safety critical computer system is higher than double two-out-of-two safety critical computer system. Therefore, it provides theoretical support for the design of the subsequent differentiated security computer platform.
VL  - 7
IS  - 1
ER  -

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Author Information

Zhao Deliang

School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China
Xu Hongze

School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China

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Plain Text BibTeX RIS

APA Style

Zhao Deliang, Xu Hongze. (2019). Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure. Science Discovery, 7(1), 18-23. https://doi.org/10.11648/j.sd.20190701.14

Copy | Download

ACS Style

Zhao Deliang; Xu Hongze. Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure. Sci. Discov. 2019, 7(1), 18-23. doi: 10.11648/j.sd.20190701.14

Copy | Download

AMA Style

Zhao Deliang, Xu Hongze. Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure. Sci Discov. 2019;7(1):18-23. doi: 10.11648/j.sd.20190701.14

Copy | Download

@article{10.11648/j.sd.20190701.14,
  author = {Zhao Deliang and Xu Hongze},
  title = {Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure},
  journal = {Science Discovery},
  volume = {7},
  number = {1},
  pages = {18-23},
  doi = {10.11648/j.sd.20190701.14},
  url = {https://doi.org/10.11648/j.sd.20190701.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20190701.14},
  abstract = {The rail transit operation control system and nuclear reactor control system are extremely high for safety and reliability, especially the high speed maglev of more than 600 kilometers per hour. Therefore, the effect of common cause failure on the reliability of safety critical computer must be considered.The safety critical system is the key of the above-mentioned safety demanding system. In this paper, the structure and working principle of a safety critical computer with two-out-of-three and double two-out-of-two are analyzed.Considering the common cause failure and maintenance rate, by using Markov model, the reliability models of safety critical computer system with with two-out-of-three and double two-out-of-two are established. The simulation results show that the existence of common cause failure greatly reduces the reliability of the system. The maintenance rate can improve the reliability of the system. At the same time, considering the common cause failure and the maintenance rate, it is proved that the reliability of the two-out-of-three safety critical computer system is higher than double two-out-of-two safety critical computer system. Therefore, it provides theoretical support for the design of the subsequent differentiated security computer platform.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - Reliability Analysis of Safety Critical Computer System Considering Common Cause Failure
AU  - Zhao Deliang
AU  - Xu Hongze
Y1  - 2019/03/08
PY  - 2019
N1  - https://doi.org/10.11648/j.sd.20190701.14
DO  - 10.11648/j.sd.20190701.14
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 18
EP  - 23
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20190701.14
AB  - The rail transit operation control system and nuclear reactor control system are extremely high for safety and reliability, especially the high speed maglev of more than 600 kilometers per hour. Therefore, the effect of common cause failure on the reliability of safety critical computer must be considered.The safety critical system is the key of the above-mentioned safety demanding system. In this paper, the structure and working principle of a safety critical computer with two-out-of-three and double two-out-of-two are analyzed.Considering the common cause failure and maintenance rate, by using Markov model, the reliability models of safety critical computer system with with two-out-of-three and double two-out-of-two are established. The simulation results show that the existence of common cause failure greatly reduces the reliability of the system. The maintenance rate can improve the reliability of the system. At the same time, considering the common cause failure and the maintenance rate, it is proved that the reliability of the two-out-of-three safety critical computer system is higher than double two-out-of-two safety critical computer system. Therefore, it provides theoretical support for the design of the subsequent differentiated security computer platform.
VL  - 7
IS  - 1
ER  -

Copy | Download