基于近似失效点的多源异构数据融合可靠性评估模型
TB114.3%O213.2; 为解决多源异构数据的融合问题,提高可靠性评估的精度,根据D-S(Dempster-Shafer)理论和最小二乘法相结合的思想,提出一种基于近似失效点的多源异构数据融合方法.首先,针对单一数据源构造概率分配并进行加权融合得到概率包络,建立基于近似失效点的分布拟合模型.其次,采用最小二乘法得到参数估计值并构造面积度量指标确定真实的失效分布函数,进而完成可靠性评估.最后,通过算例验证了该方法的可行性与有效性,相较于Bayes方法精度更高....
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| Published in | 机械强度 Vol. 47; no. 3; pp. 136 - 142 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
西南交通大学 数学学院统计系,成都 611756%航空工业济南特种结构研究所,济南 250023%合肥通用机械研究院有限公司,合肥 230031
2025
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-9669 |
| DOI | 10.16579/j.issn.1001.9669.2025.03.017 |
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| Abstract | TB114.3%O213.2; 为解决多源异构数据的融合问题,提高可靠性评估的精度,根据D-S(Dempster-Shafer)理论和最小二乘法相结合的思想,提出一种基于近似失效点的多源异构数据融合方法.首先,针对单一数据源构造概率分配并进行加权融合得到概率包络,建立基于近似失效点的分布拟合模型.其次,采用最小二乘法得到参数估计值并构造面积度量指标确定真实的失效分布函数,进而完成可靠性评估.最后,通过算例验证了该方法的可行性与有效性,相较于Bayes方法精度更高. |
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| AbstractList | TB114.3%O213.2; 为解决多源异构数据的融合问题,提高可靠性评估的精度,根据D-S(Dempster-Shafer)理论和最小二乘法相结合的思想,提出一种基于近似失效点的多源异构数据融合方法.首先,针对单一数据源构造概率分配并进行加权融合得到概率包络,建立基于近似失效点的分布拟合模型.其次,采用最小二乘法得到参数估计值并构造面积度量指标确定真实的失效分布函数,进而完成可靠性评估.最后,通过算例验证了该方法的可行性与有效性,相较于Bayes方法精度更高. |
| Abstract_FL | In order to solve the problem of multi-source heterogeneous data fusion and improve the accuracy of reliability evaluation,a multi-source heterogeneous data fusion method based on approximate failure point was proposed by using D-S theory and the least squares method.Firstly,the probability envelope curves were obtained through constructing probability assignment for a single source of data and performing weighted fusion.A distribution fitting model based on approximate failure points was also established.Secondly,the parameter estimation value was obtained by the least squares method,and the area metric was constructed to determine the true failure distribution function,and then the reliability assessment was completed.Finally,the feasibility and effectiveness of the proposed method were verified by examples,and the accuracy was higher than that of Bayes method. |
| Author | 周坤 杨童博 魏政 |
| AuthorAffiliation | 西南交通大学 数学学院统计系,成都 611756%航空工业济南特种结构研究所,济南 250023%合肥通用机械研究院有限公司,合肥 230031 |
| AuthorAffiliation_xml | – name: 西南交通大学 数学学院统计系,成都 611756%航空工业济南特种结构研究所,济南 250023%合肥通用机械研究院有限公司,合肥 230031 |
| Author_FL | WEI Zheng ZHOU Kun YANG Tongbo |
| Author_FL_xml | – sequence: 1 fullname: YANG Tongbo – sequence: 2 fullname: WEI Zheng – sequence: 3 fullname: ZHOU Kun |
| Author_xml | – sequence: 1 fullname: 杨童博 – sequence: 2 fullname: 魏政 – sequence: 3 fullname: 周坤 |
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| ClassificationCodes | TB114.3%O213.2 |
| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.16579/j.issn.1001.9669.2025.03.017 |
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| DocumentTitle_FL | Multi-source heterogeneous data fusion model for reliability evaluation based on approximate failure points |
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| Keywords | 多源异构数据 D-S证据理论 近似失效点 D-S evidence theory Approximate failure point Area metric Multi-source heterogeneous data 面积度量指标 Least squares estimation 最小二乘估计 |
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| PublicationTitle | 机械强度 |
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| Publisher | 西南交通大学 数学学院统计系,成都 611756%航空工业济南特种结构研究所,济南 250023%合肥通用机械研究院有限公司,合肥 230031 |
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| Title | 基于近似失效点的多源异构数据融合可靠性评估模型 |
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