RELIABILITY ANALYSIS FOR JACK-UP GEARBOX BASED ON COPULA BAYESIAN NETWORK
A reliability analysis method for complicated mechanical system is proposed which is based on Copula Bayesian network. Since the variables in complicated mechanical system are numerous and correlated to each other,the traditional analysis methods are incapable to solve the problems. However,the Copu...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2018-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.01.016 |
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| _version_ | 1841535387591245824 |
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| author | ZHANG Qing LIU Chao SUN YuanTao QIN XianRong |
| author_facet | ZHANG Qing LIU Chao SUN YuanTao QIN XianRong |
| author_sort | ZHANG Qing |
| collection | DOAJ |
| description | A reliability analysis method for complicated mechanical system is proposed which is based on Copula Bayesian network. Since the variables in complicated mechanical system are numerous and correlated to each other,the traditional analysis methods are incapable to solve the problems. However,the Copula Bayesian network takes advantage of both Copula function and Bayesian network,it can takes the correlation of variables into consideration by using Copula function,and makes probability inference of reliability at the same time. The CBN structure was transformed from BN at first,and then local t-Copulas were modeled based on the marginal distributions and correlation coefficient matrix of variables. The reliability of an jack-up gearbox was analyzed by CBN,and the correlated structure of nodes was obtained. The failure probability of gearbox was calculated by CBN,and the result showed that it was more secure and accurate than the traditional BN method. |
| format | Article |
| id | doaj-art-be15034737be4a9db718351c02c6c71a |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2018-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-be15034737be4a9db718351c02c6c71a2025-01-15T02:32:47ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692018-01-0140889430600703RELIABILITY ANALYSIS FOR JACK-UP GEARBOX BASED ON COPULA BAYESIAN NETWORKZHANG QingLIU ChaoSUN YuanTaoQIN XianRongA reliability analysis method for complicated mechanical system is proposed which is based on Copula Bayesian network. Since the variables in complicated mechanical system are numerous and correlated to each other,the traditional analysis methods are incapable to solve the problems. However,the Copula Bayesian network takes advantage of both Copula function and Bayesian network,it can takes the correlation of variables into consideration by using Copula function,and makes probability inference of reliability at the same time. The CBN structure was transformed from BN at first,and then local t-Copulas were modeled based on the marginal distributions and correlation coefficient matrix of variables. The reliability of an jack-up gearbox was analyzed by CBN,and the correlated structure of nodes was obtained. The failure probability of gearbox was calculated by CBN,and the result showed that it was more secure and accurate than the traditional BN method.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.01.016CBN modelCorrelationMultivariate variablesJack-up gearboxReliability |
| spellingShingle | ZHANG Qing LIU Chao SUN YuanTao QIN XianRong RELIABILITY ANALYSIS FOR JACK-UP GEARBOX BASED ON COPULA BAYESIAN NETWORK Jixie qiangdu CBN model Correlation Multivariate variables Jack-up gearbox Reliability |
| title | RELIABILITY ANALYSIS FOR JACK-UP GEARBOX BASED ON COPULA BAYESIAN NETWORK |
| title_full | RELIABILITY ANALYSIS FOR JACK-UP GEARBOX BASED ON COPULA BAYESIAN NETWORK |
| title_fullStr | RELIABILITY ANALYSIS FOR JACK-UP GEARBOX BASED ON COPULA BAYESIAN NETWORK |
| title_full_unstemmed | RELIABILITY ANALYSIS FOR JACK-UP GEARBOX BASED ON COPULA BAYESIAN NETWORK |
| title_short | RELIABILITY ANALYSIS FOR JACK-UP GEARBOX BASED ON COPULA BAYESIAN NETWORK |
| title_sort | reliability analysis for jack up gearbox based on copula bayesian network |
| topic | CBN model Correlation Multivariate variables Jack-up gearbox Reliability |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.01.016 |
| work_keys_str_mv | AT zhangqing reliabilityanalysisforjackupgearboxbasedoncopulabayesiannetwork AT liuchao reliabilityanalysisforjackupgearboxbasedoncopulabayesiannetwork AT sunyuantao reliabilityanalysisforjackupgearboxbasedoncopulabayesiannetwork AT qinxianrong reliabilityanalysisforjackupgearboxbasedoncopulabayesiannetwork |