Reliability Evaluation of Cryogenic Shut-Off Valve Based on Weibull Segmented Model
In order to improve the prediction accuracy of cryogenic shut-off valve failures and quantitatively analyze the distribution law of cryogenic shut-off valve failures, this study establishes a solution model based on genetic algorithm and statistics of cryogenic shut-off valve operating data, which i...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/2612123 |
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| _version_ | 1849684019133808640 |
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| author | Yi Lu Jian-Ming Zheng Ting Chen |
| author_facet | Yi Lu Jian-Ming Zheng Ting Chen |
| author_sort | Yi Lu |
| collection | DOAJ |
| description | In order to improve the prediction accuracy of cryogenic shut-off valve failures and quantitatively analyze the distribution law of cryogenic shut-off valve failures, this study establishes a solution model based on genetic algorithm and statistics of cryogenic shut-off valve operating data, which is combined with two Weibull segmented models. The research analyzed the characteristics of the failure rate curve using probability statistical mathematics methods, used the K-S test method to validate the obtained two-parameter Weibull model, and compared the fitting results with the Weibull probability plot. The results show that the genetic algorithm based on D-test has both higher accuracy of curve fitting and more accurate parameters, which overcomes the shortcomings of inaccurate fitting results of WPP graphs, and can be used as a basis for theoretical assessment of reliability levels. |
| format | Article |
| id | doaj-art-c822408dac9f4b7e83f57d60fa496448 |
| institution | DOAJ |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-c822408dac9f4b7e83f57d60fa4964482025-08-20T03:23:35ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/2612123Reliability Evaluation of Cryogenic Shut-Off Valve Based on Weibull Segmented ModelYi Lu0Jian-Ming Zheng1Ting Chen2Xi’an University of TechnologyXi’an University of TechnologyXi’an University of TechnologyIn order to improve the prediction accuracy of cryogenic shut-off valve failures and quantitatively analyze the distribution law of cryogenic shut-off valve failures, this study establishes a solution model based on genetic algorithm and statistics of cryogenic shut-off valve operating data, which is combined with two Weibull segmented models. The research analyzed the characteristics of the failure rate curve using probability statistical mathematics methods, used the K-S test method to validate the obtained two-parameter Weibull model, and compared the fitting results with the Weibull probability plot. The results show that the genetic algorithm based on D-test has both higher accuracy of curve fitting and more accurate parameters, which overcomes the shortcomings of inaccurate fitting results of WPP graphs, and can be used as a basis for theoretical assessment of reliability levels.http://dx.doi.org/10.1155/2022/2612123 |
| spellingShingle | Yi Lu Jian-Ming Zheng Ting Chen Reliability Evaluation of Cryogenic Shut-Off Valve Based on Weibull Segmented Model Advances in Materials Science and Engineering |
| title | Reliability Evaluation of Cryogenic Shut-Off Valve Based on Weibull Segmented Model |
| title_full | Reliability Evaluation of Cryogenic Shut-Off Valve Based on Weibull Segmented Model |
| title_fullStr | Reliability Evaluation of Cryogenic Shut-Off Valve Based on Weibull Segmented Model |
| title_full_unstemmed | Reliability Evaluation of Cryogenic Shut-Off Valve Based on Weibull Segmented Model |
| title_short | Reliability Evaluation of Cryogenic Shut-Off Valve Based on Weibull Segmented Model |
| title_sort | reliability evaluation of cryogenic shut off valve based on weibull segmented model |
| url | http://dx.doi.org/10.1155/2022/2612123 |
| work_keys_str_mv | AT yilu reliabilityevaluationofcryogenicshutoffvalvebasedonweibullsegmentedmodel AT jianmingzheng reliabilityevaluationofcryogenicshutoffvalvebasedonweibullsegmentedmodel AT tingchen reliabilityevaluationofcryogenicshutoffvalvebasedonweibullsegmentedmodel |